WO2015021940A1

WO2015021940A1 - Manufacturing process for ultraviolet-proof nylon textile and textile

Info

Publication number: WO2015021940A1
Application number: PCT/CN2014/084485
Authority: WO
Inventors: 胥正安; 刘春燕; 清水壮夫
Original assignee: 东丽纤维研究所（中国）有限公司
Priority date: 2013-08-15
Filing date: 2014-08-15
Publication date: 2015-02-19
Also published as: CN105378175B; TW201525232A; CN105378175A; CN104631110B; CN104631110A; TWI651447B

Abstract

Disclosed are a manufacturing process for an ultraviolet-proof nylon textile and a textile manufactured by the process. In the presence of an organic acid, a thin nylon cloth of 25 to 60 g/m² in gram weight is treated with an organic ultraviolet absorber and a fluorescent whitening agent, allowing most of the organic ultraviolet absorber and the fluorescent whitening agent into the fibres. The nylon textile obtained has a soft hand feel and a superior ultraviolet-proof performance.

Description

Anti-UV nylon textile manufacturing method and textile

Technical field

The invention belongs to the field of textiles and materials, and particularly relates to a nylon-based textile which is not only thin and light, but also has excellent ultraviolet resistance and soft hand feeling. Background technique

In the spring and summer, the outdoor temperature is high and people are more likely to sweat. Therefore, clothes made of soft and light materials with high hygroscopic properties are popular. Because polyester fiber products are hard to handle and cotton fiber thin products are low in strength, nylon fibers are often used for soft and lightweight products. On the other hand, with the deterioration of the global environment in recent years, the ozone layer has been destroyed, and ultraviolet rays reaching the ground have increased. Excessive exposure to ultraviolet rays may affect health, such as sunburn, wrinkles, and sunburn. Therefore, the clothing is required to have a function of shielding the ultraviolet rays.

Generally, the ultraviolet (UV) wavelength is 400 to 200 nm, and can be classified into a UVA band (320 to 400 nm), a UVB band (290 to 320 nm), and a UVC band (200 to 290 nm). Among them, the UVC band is not permeable due to the presence of ozone and dust in the air, but the UVA band produces active oxidation and pigmentation, and the UVB band produces erythema and blister dermatitis. The molecular structure of nylon fiber does not have an aromatic group that absorbs ultraviolet rays, and the ultraviolet ray is extremely permeable.

For this reason, many methods have been considered, such as: adding titanium dioxide during spinning, post-processing with an ultraviolet processing agent, using a high-density fabric, coating, and the like. Such as patent documents In the molecular structure of the PET fiber disclosed in 2004-044040, which has an ultraviolet absorbing aromatic group, as long as titanium dioxide is added during spinning, sufficient ultraviolet ray resistance is obtained, but there is a problem that the hand feels hard. Further, by introducing an ultraviolet absorber and an optical brightener into the inside of the fiber to improve the ultraviolet ray resistance, there is an upper limit to the processing temperature of the nylon fiber, which is not possible, as disclosed in Japanese Laid-Open Patent Publication No. Hei 8-92874, No. 2005-133282. A large amount of the ultraviolet absorber is introduced into the fiber, and there is a problem that the ultraviolet ray resistance is low. As a high-density fabric, in particular, a fabric using a PET fiber containing titanium oxide, although a high ultraviolet-proof property can be obtained, is hard to handle. It is also possible to obtain a good ultraviolet ray resistance by applying an ultraviolet ray shielding agent or an ultraviolet absorbing agent to one side of the fabric, but there is a problem that the hand feeling changes greatly and the weight becomes heavy. Summary of the invention

In order to solve the above problems, an object of the present invention is to provide a method for producing a nylon fiber textile which is light and thin, soft to the touch, and excellent in ultraviolet shielding resistance, and a UV resistant nylon-based textile obtained by the method.

In order to achieve the above object, the constitution of the present invention is as follows:

(1) treating a thin nylon cloth having a weight of 25 to 60 g/m ² using an organic ultraviolet absorber and an optical brightener in the presence of an organic acid, so that the organic ultraviolet absorber and the fluorescent whitening agent enter the fiber interior , get UV-resistant nylon textiles.

(2) The ultraviolet-resistant nylon-based textile of the above (1), wherein the thin nylon cloth has a covering coefficient of 1,500 to 3,000.

(3) The ultraviolet-resistant nylon-based textile of (1) or (2) above, wherein the organic ultraviolet absorber is a non-reactive organic ultraviolet absorber and/or a reactive organic ultraviolet absorber. (4) The ultraviolet-resistant nylon-based textile of the above (3), wherein the non-reactive organic ultraviolet absorbent has a structure represented by the following formula (I):

N2014/084485

(5) The ultraviolet-resistant nylon-based textile of the above (3), wherein the reactive organic ultraviolet absorbent has a structure represented by the following formula:

Formula (Π)

Wherein, it is an anthracene group; R ₅ is _S0 ₃ H or -S0 ₃ X, and the X is selected from an alkali metal.

(6) The anti-UV nylon textile of (1) or (2) above, wherein the fluorescent whitening agent is One or more of a stilbene type, a coumarin type, a pyrazoline type, a benzooxazole type, and a phthalimide type fluorescent whitening agent.

(7) The ultraviolet-shielding nylon-based textile of the above (6), wherein the fluorescent whitening agent is a stilbene-type fluorescent whitening agent.

(8) The ultraviolet-resistant nylon-based textile of the above (1) or (2), wherein the organic acid is formic acid, acetic acid, propionic acid, lactic acid, glycolic acid, propionic acid, citric acid, oxalic acid, tartaric acid, maleic acid And one or more of malic acid.

(9) A UV-resistant nylon-based textile obtained by the production method of the above (1).

(10) The UPF value of the ultraviolet-resistant nylon-based textile of the above (9) is 30 or more according to the method of AS/NZS 4399-1996.

(11) The UPF value of the above-mentioned (10) UV-resistant nylon-based textile is 40 or more according to the AS/NZS 4399-1996 method.

(12) The UPF value of the above-mentioned (11) UV-resistant nylon-based textile is 50 or more according to the method of AS/NZS 4399-1996.

The nylon-based textile of the present invention is obtained by treating a specific nylon fiber cloth with an organic ultraviolet absorber and an optical brightener in the presence of an organic acid to cause the organic ultraviolet absorber and the fluorescent whitening agent to enter the fiber. The UVF protection factor (UPF Ultraviolet Protection Factor) obtained by the internal method is more than 30 products.

According to the present invention, it is possible to impart a soft hand and a superior ultraviolet protection property to a lightweight textile containing nylon fibers. detailed description The improvement of the ultraviolet protection performance in the present invention means reducing the short-term damage such as sunburn caused by the skin.

The UVB band and the transmittance in the UVA band which causes long-term skin damage indicate a UV protection factor (UPF) of 30 or more, preferably 40 or more, more preferably 50 or more.

When the UV protection factor (UPF) is 30 or more, there is no problem of short-term and long-term damage of the skin by ultraviolet rays, but nylon fabrics which are thin on the market (for example, a weight of about 40 g/m ² ) and soft, Its UPF value is about 10 or so.

The UV protection factor (UPF) of the nylon-based textile of the present invention is based on the Labsphere test method adopted by the American Society of Skin Cancer. The Labsphere test method adopted by the American Skin Cancer Association is specifically AS/NZS 4399-1996 (Australian/New Zealand Standard "Sun protective clothing-Evaluation and classification"), which is calculated by the following formula.

UPF = χ _{λ λ} χ ε _{χ χ} Δ λ

ε _{λ :} corresponding erythema generation parameter at unit wavelength

E : Spectral irradiance of sunlight (w/m ² * nm)

Δ λ: unit wavelength (5nm)

T : transmittance (%) measured every 5 nm.

The nylon-based textile of the present invention, wherein the nylon fiber is one or more of a full-dull, semi-dull, and high-gloss nylon fiber, and is made into a thin cloth having a basis weight of 25 to 60 g/m ² and a covering factor of 1500 to 3000. . The nylon fiber is preferably nylon 6, nylon 66, but is not limited thereto. The cross-sectional shape of the nylon fiber may be a circular shape, or may be a deformed shape such as a triangle or a quadrangle, and the irregular cross-sectional shape may be such that the ultraviolet ray is scattered, which is preferable, but is not limited thereto. From the viewpoint of improving the appearance and the like, when using the nylon-based textile of the invention, other fibers can be used at the same time. Dimensions, such as cotton fiber, viscose fiber, wool, silk, polyester, ammonia, etc.

The nylon-based textile of the present invention is preferably used as a fabric for spring and summer blouses, and therefore is required to have lightness and air permeability. When the grammage exceeds 60 g/m ² , it feels too heavy as the above-mentioned use; and when the grammage is less than 25 g/m ² , the cloth is too thin to give a high UPF value and a strong drop is caused. In the present invention, the thickness of the thin nylon cloth is preferably 30 to 40 g/m ² , and more excellent lightness and wearability can be obtained.

Further, under the above-mentioned grammage condition, if the cover factor is too small, the voids between the fibers forming the textile are too large, the ultraviolet rays are easily transmitted, and it is difficult to obtain a high UPF value; and if the cover factor is too high, the poor gas permeability is not suitable for the above. use. In the present invention, the cover factor is preferably 1,500 to 3,000, and an excellent UPF value and good gas permeability can be obtained, and more preferably 1600 to 2,500. The calculation of the coverage factor (CF) is as follows:

CF= (DWp) ^{1 2} X MWp + (DWf) ^1/2 X Li f

Where DWp is the warp total denier (dtex), MWp is the warp density (root /2. 54cm); and f is the weft total denier (dtex), and MWf is the twist density (root /2. 54cm). The present invention contemplates that although the ultraviolet ray resistance of the textile can be improved to some extent by introducing the ultraviolet absorbing agent into the fiber, the upper limit of the processing temperature of the nylon fiber is mostly ioo °c, and the high temperature is 110 ° C, ultraviolet ray. The absorbent is not introduced into the fiber in a large amount, and there is still a problem that the ultraviolet ray resistance is low.

Therefore, in the present invention, the amorphous region of the nylon fiber is sufficiently relaxed by the method of improving the macromolecular mobility of the nylon fiber, thereby increasing the amount of the non-reactive organic ultraviolet absorbent introduced into the fiber. The compound used in the present invention for improving the mobility of macromolecules is an acid. Although any acid has an effect of improving macromolecular mobility inside the fiber, that is, it is also possible to use a mineral acid such as hydrochloric acid, sulfuric acid or phosphoric acid, but since the inorganic acid causes hardening of the nylon-based textile, the present invention uses organic acid. The organic acid to be used is preferably formic acid, acetic acid, propionic acid, lactic acid, glycolic acid, propionic acid, citric acid, oxalic acid, tartaric acid, maleic acid, malic acid or the like, but is not limited thereto. L〜20%owf的。 The owf (% of the weight of the fabric relative to the weight of the fabric) can be adjusted as needed, preferably in the range of 0. l~20%owf Within the range, it is more preferably in the range of 1 to 5% owf.

In order to improve the UPF value of the nylon-based textile, the ultraviolet absorbent used in the present invention is selected not only to be compatible with the polymer of the textile to be treated, but also to satisfy other basic physical properties such as washing color fastness and light resistance. Color fastness, tear strength and other properties.

The organic ultraviolet absorber of the present invention uses at least one of a non-reactive organic ultraviolet absorber and a reaction-type organic ultraviolet absorber. The organic ultraviolet absorber used in the present invention may be a commercially available product, or may be synthesized according to a technique known in the art, and the owf at the time of use may be adjusted as needed, for example, for a non-reactive organic ultraviolet absorber, preferably In the range of 1 to 20% owf, more preferably in the range of 2 to 6% owf; for the reactive organic ultraviolet absorber, it is preferably in the range of 1 to 20% owf, more preferably 2 to 6%. Within the scope of owf.

The non-reactive organic compound has the structure shown by the following formula (I):

Formula (I)

The reactive organic ultraviolet absorber has a structure represented by the following formula (II):

Formula (II)

Wherein, R ₄ is an alkyl group; R ^ -S0 ₃ H or _S0 ₃ X, X is selected from the alkali metal, preferably Na.

Herein, an alkyl group has a meaning generally known in the art, which is preferably an alkyl group of { ₆ . Examples of the fluorenyl group of d- ₆ include a methyl group, an ethyl group, a n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a t-butyl group, a n-pentyl group, an isopentyl group, and the like. Sec-pentyl, neopentyl, tert-amyl, n-hexyl, isohexyl and the like.

It is recommended to use a benzotriazole having a -5 group in the reaction type ultraviolet absorber. Derivatives, but are not limited to this.

The nylon-based textile of the present invention may be used singly or in combination with a non-reactive ultraviolet absorber and a reactive ultraviolet absorber. It is preferred to use a reactive ultraviolet absorber alone or a non-reactive ultraviolet absorber and a reactive ultraviolet absorber, and it is more preferred to use both a non-reactive ultraviolet absorber and a reactive ultraviolet absorber.

The fluorescent whitening agent used in the present invention may be used as it is, or may be synthesized according to a technique known in the art. Preferably, it is at least one of a stilbene type, a coumarin type, a pyrazoline type, a benzooxazole type, and a phthalimide type fluorescent whitening agent, and more preferably a stilbene type fluorescent whitening. Agent, but not limited to this. The range of 0. l~10%o. w. f., more preferably in the range of 0.5 to 2% o. w. f.

In the present invention, the time and temperature during the treatment of the thin nylon fabric using the organic ultraviolet absorber and the fluorescent whitening agent are not particularly limited, and may be determined as needed, for example, the time may be 5 to 60. In the range of minutes, the temperature can be in the range of 90 to 115 °C.

Example

The present invention will be further described below in conjunction with the examples and comparative examples.

The physical properties involved in the examples and comparative examples were tested as follows:

(1) Organic acid: Whether or not there is residue on the fiber after using an organic acid, and observation by FT-IR. When there is an absorption peak (carbon group derived from a carboxyl group) near 1750 cm- ¹ , it means that an organic acid remains on the fiber; otherwise, there is no residue.

(2) UV protection factor UPF value: AS/NZS 4399-1996 standard.

(3) Feel evaluation: The evaluation of the tactile sensation of 10 subjects was evaluated, and 6 people judged to be soft. Soft time 〇, 3 to 5 people judged to be soft when eight, 2 people or less judged to be soft X (4) Household washing standard: JIS L 0217 103 method.

The respective reagents involved in the following examples and comparative examples are as follows:

(1) Non-reactive UV absorbers:

1-A: 45wt°/^J emulsion

1-B: 35wt ^Q / J emulsion

1-C: 40\^% water emulsion

1-D: 25^% water emulsion

2-B: 60%% water emulsion

(3) Organic acids

Lactic acid: 85wt% chemically pure substance formic acid: 98wt% chemically pure substance Acetic acid: 99. 5\^% chemically pure substance

(4) Inorganic acid

Sulfuric acid: 98wt% chemically pure substance

Phosphoric acid: 85wt% chemically pure substance

(5) Fluorescent whitening agent

Styrene-type fluorescent whitening agent

Coumarin-type fluorescent whitening agent

Benzooxazole type fluorescent whitening agent

Pyrazoline type fluorescent whitening agent

Example 1

Using a thin nylon 6 fabric with a weight of 32 g/m ² and a cover factor of 1670 (longitudinal 20D_24f-fully matt nylon; weft 20D-24f-full matt nylon; manufactured by Toray Synthetic Fiber Co., Ltd.), scouring by conventional methods (carbonated) Sodium 2g / L, soap 2g / L; 80 ° C X 30 minutes), drying (130 ° C X 2 minutes), intermediate setting (160 ° C X 1. 5 minutes), the cloth into the treatment shown in Table 1 In the liquid (bath ratio 1:20), the temperature was raised to 98 ° C and the immersion treatment was carried out for 30 minutes. Then, fixing treatment (polyphenol condensate 2 g/L, 80 ° C X for 20 minutes), water washing, and drying were carried out in accordance with a conventional method to obtain a nylon fiber textile of Example 1.

Table 1

Non-reactive 1-A 4%o. w. f.

Reaction type 2 - A 3%o. w. f ·

Lactic acid 4%o. w. f.

Styrene-type fluorescent whitening agent 0. 75% ow f · The physical properties of the obtained textiles are shown in Table 2. When the nylon fiber in the obtained textile was observed by FT-IR, it was found that there was an absorption peak (carbon group derived from a carboxyl group) in the vicinity of 1750 cm ¹ , indicating that the organic acid remained on the nylon fiber after the processing.

Comparative example 1-1

The composition shown in Table 1 did not contain lactic acid, and the rest of the properties of the textile obtained in the same manner as in Example 1 are shown in Table 2.

Comparative example 1 - 2

The lactic acid in the composition shown in Table 1 was replaced with sulfuric acid, and the rest of the properties of the obtained textiles as in Example 1 are shown in Table 2.

Comparative example 1-3

The composition shown in Table 1 did not contain a stilbene-type fluorescent whitening agent, and the rest of the properties of the obtained textiles of Example 1 are shown in Table 2.

Comparative example 1-4

The composition shown in Table 1 uses only the non-reactive type 1-A, and the rest of the textiles of the same example 1 are shown in Table 2.

Comparative example 1-5

The composition shown in Table 1 was only the reaction type 2-A, and the rest of the textiles obtained in the same manner as in Example 1 are shown in Table 2.

Comparative Example 1 - 6

The composition shown in Table 1 used only the stilbene type fluorescent whitening agent, and the rest of the properties of the obtained textiles as in Example 1 are shown in Table 2.

Comparative Example 1-7 The compositions shown in Table 1 used only non-reactive 1-A and stilbene-type fluorescent whitening agents, and the rest were the same as in Example 1, and the physical properties of the obtained textiles are shown in Table 2.

Comparative Example 1-8

The composition shown in Table 1 used only the reactive 2-A and stilbene-type fluorescent whitening agents, and the rest of the properties of the obtained textiles are shown in Table 2.

Comparative Example 1 - 9

The compositions shown in Table 1 used only the non-reactive type 1-A and the reaction type 2-A, and the rest were the same as those in the example 1, and the physical properties of the obtained textiles are shown in Table 2.

It can be seen from the above table that in the presence of lactic acid, the non-reactive ultraviolet absorber, reactive ultraviolet absorber and fluorescent whitening agent are used to treat the thin nylon fabric. Textiles, used simultaneously with the use of only UV absorbers, or with only fluorescent whitening agents, or with only UV absorbers and lactic acid, or with only UV absorbers and optical brighteners, or in the presence of sulfuric acid The textile obtained by treating the ultraviolet absorber and the fluorescent whitening agent is not only soft to the touch but also has excellent ultraviolet shielding properties, and in particular, maintains a high UPF value after washing.

Example 2

Using a thin nylon 6 fabric with a weight of 60 g/m ² and a cover factor of 2430 (longitudinal 30D_24f - semi-dull nylon; weft 40D-34f-full matt nylon; manufactured by Toray Synthetic Fiber Co., Ltd.), scouring by conventional methods (carbonated) Sodium 2g / L, soap 2g / L; 80 ° C X 30 minutes), drying (130 ° C X 2 minutes), intermediate setting (160 ° C X 1. 5 minutes), the cloth into the treatment shown in Table 3 In the liquid (bath ratio 1:20), the temperature was raised to 95 ° C and immersed for 30 minutes. Then, fixing treatment (polyphenol condensate 2 g/L, 80 ° C X for 20 minutes), water washing, and drying were carried out in accordance with a conventional method to obtain a nylon fiber textile of Example 2.

table 3

The physical properties of the obtained textiles are shown in Table 4. When the nylon fiber in the obtained textile was observed by FT-IR, it was found that there was an absorption peak (carbon group derived from a carboxyl group) in the vicinity of 1750 cm- ¹ , indicating that the organic acid remained on the nylon fiber after the processing.

Comparative example 2-1

The composition shown in Table 3 does not contain formic acid, and the rest is the same as in Example 2, and the physical properties of the obtained textile are as seen. Table 4.

Comparative Example 2-2

The formic acid in the composition shown in Table 3 was replaced with sulfuric acid, and the rest was the same as in Example 2, and the physical properties of the obtained textile were shown in Table 4.

Comparative example 2-3

The composition shown in Table 3 did not contain the coumarin-type fluorescent whitening agent, and the rest was the same as in Example 2, and the physical properties of the obtained textiles are shown in Table 4.

It can be seen from the above table that the textile obtained by treating the thin nylon fabric with a non-reactive ultraviolet absorber and an optical brightener in the presence of formic acid is compared with the use of only the ultraviolet absorber and the fluorescent whitening agent, Or the textile obtained by treating only the ultraviolet absorber and formic acid, or using the ultraviolet absorber and the fluorescent whitening agent in the presence of sulfuric acid, is not only soft to the touch but also has excellent ultraviolet shielding properties, especially after washing. Can maintain a high UPF value.

Example 3

Use a thin nylon 6 fabric with a weight of 60g/m ² and a cover factor of 2430 (longitudinal 30D-24f - Semi-dull nylon; weft 40D- 34f-full matt nylon; manufactured by Toray Synthetic Fiber Co., Ltd., scouring by conventional methods (sodium carbonate 2g/L, soap flakes 2g/L; 80°CX 30 minutes), drying (130 After °CX (2 minutes) and intermediate setting (160 °C X 1. 5 minutes), the cloth was poured into a treatment liquid (bath ratio 1:20) having the composition shown in Table 5, and the temperature was raised to 95 ° C for 30 minutes to immerse. Then, fixing treatment (polyphenol condensate 2 g/L, 80 ° C X for 20 minutes), water washing, and drying were carried out in accordance with a conventional method to obtain a nylon fiber textile of Example 3.

table 5

The physical properties of the obtained textiles are shown in Table 6. When the nylon fiber in the obtained textile was observed by FT-IR, it was found that there was an absorption peak (carbon group derived from a carboxyl group) in the vicinity of 1750 cm- ¹ , indicating that the organic acid remained on the nylon fiber after the processing.

Comparative Example 3 - 1

The composition shown in Table 5 does not contain formic acid, and the rest is the same as in Example 3, and the physical properties of the obtained textile are shown in Table 6.

Comparative Example 3-2

The formic acid in the composition shown in Table 5 was replaced with sulfuric acid, and the rest was the same as in Example 3, and the physical properties of the obtained textile were shown in Table 6.

Comparative Example 3-3

The composition shown in Table 5 did not contain the coumarin-type fluorescent whitening agent, and the rest was the same as in Example 3. The physical properties of the obtained textiles are shown in Table 6. Treatment liquid composition of treated textiles

UPF value

Reactive type

Organic acid fluorescent whitening agent hand ultraviolet absorber washing feeling unwashed

20 times after Example 3 2-A ¥Acantin type 49 43 〇Comparative Example 3-1 2- A Coumarin type 32 28 〇Comparative Example 3 - 2 2-A Coumarin type 44 40 X Comparison Example 3-3 2-A Formic acid 40 35 〇 As can be seen from the above table, the textile obtained after treating the thin nylon fabric with a reactive ultraviolet absorber and an optical brightener in the presence of formic acid is compared with Using a UV absorber and an optical brightener, or using only an ultraviolet absorber and formic acid, or a textile obtained by treating with both an ultraviolet absorber and an optical brightener in the presence of sulfuric acid, not only soft but also superior in hand. UV shielding, especially after washing, maintains a high UPF value.

Example 4

A thin nylon 6 fabric with a basis weight of 40 g/m ² and a cover factor of 1970 (longitudinal 30D_24f-semi-dull nylon; weft 20D-34f-fully matt nylon; manufactured by Toray Synthetic Fiber Co., Ltd.) was scoured by a conventional method (carbonic acid) Sodium 2g / L, soap 2g / L; 80 ° C X 30 minutes), dry (130 ° C X 2 minutes), intermediate setting (160 ° C X 1. 5 minutes), the cloth into the treatment shown in Table 7 In the liquid (bath ratio 1:20), the temperature was raised to 11 CTC and immersed for 20 minutes. Then, fixing treatment (polyphenol condensate 2 g/L, 80 ° C X for 20 minutes), water washing, and drying were carried out in accordance with a conventional method to obtain a nylon fiber textile of Example 4. Table 7

The physical properties of the obtained textiles are shown in Table 8. When the nylon fiber in the obtained textile was observed by FT-IR, it was found that there was an absorption peak (carbon group derived from a carboxyl group) in the vicinity of 1750 cm- ¹ , indicating that the organic acid remained on the nylon fiber after the processing.

Comparative Example 4-1 The composition shown in Table 7 contained no acetic acid, and the rest of the same as in Example 4, the physical properties of the obtained textiles are shown in Table 8.

Comparative Example 4-2 The acetic acid in the composition shown in Table 7 was replaced with phosphoric acid, and the rest was the same as in Example 4, and the physical properties of the obtained textile were shown in Table 8.

Comparative Example 4 - 3 The composition shown in Table 7 did not contain a coumarin-type fluorescent whitening agent and a stilbene-type fluorescent whitening agent. The same as in Example 4, the physical properties of the obtained textiles are shown in Table 8.

UVF absorber UPF value after treatment liquid composition treatment

Organic

Fluorescent whitening agent, hand, non-reactive, reactive, acid, washing

Not washed

20 times later Example 4 1-C 2-A styrene acetate type coumarin type 63 57 Δ Comparative Example 4 - 1 1-C 2- A stilbene type coumarin type 55 43 Δ Comparative Example 4-2 1- C 2-A stilbene styrene type coumarin type 58 46 X Comparative Example 4-3 1-C 2-A Acetic acid 43 40 Δ As can be seen from the above table, in the presence of acetic acid, non-reactive UV rays are used. Absorbent, reactive UV absorber and fluorescent whitening agent. The textile obtained after treating the thin nylon fabric is compared to the use of only ultraviolet absorbers and fluorescent whitening agents, or only ultraviolet absorbers and formic acid, or Simultaneous use of UV absorbers and fluorescing in the presence of acetic acid

5 The textile obtained after treatment with optical brightener is not only soft to the touch but also has excellent ultraviolet light o

Shedding, especially after washing, maintains a high UPF value. Example 5 A thin nylon 6 fabric having a basis weight of 40 g/m ² and a cover factor of 1970 (warp direction 30D_24f-semi-dull nylon; weft direction 20D-34f-total matt nylon; manufactured by Toray Synthetic Fiber Co., Ltd.), by 0 conventional method After scouring (2 g/L sodium carbonate, 2 g/L soap flakes; 80 ° C X 30 min), drying (130 ° C X 2 min), intermediate setting (160 ° C X 1. 5 min), the fabric was put into Table 9. In the treatment liquid (bath ratio 1:20) of the composition, the temperature was raised to 10 CTC and the immersion treatment was carried out for 30 minutes. Then, fixing treatment (polyphenol condensate 2 g/L, 80 ° C X for 20 minutes), water washing, and drying were carried out in accordance with a conventional method to obtain a nylon fiber textile of Example 5. 5 Table 9 Non-reactive 1-D 2% owf Reactive 2-A

Lactic acid Coumarin-type fluorescent whitening agent 0. 5% owf

Stilbene type fluorescent whitening agent 0. 25% o. w. f.

The physical properties of the obtained textiles are shown in Table 10. When the nylon fiber in the obtained textile was observed by FT-IR, it was found that there was an absorption peak (carbon group derived from a carboxyl group) in the vicinity of 1750 cm- ¹ , indicating that the organic acid remained on the nylon fiber after the processing.

Comparative example 5-1

Using a thin nylon cloth with a weight of 24 g/m ² and a cover factor of 1470 (transformed 15D-24f-semi-dull nylon; weft 15D-24f-full matt nylon; manufactured by Toray Synthetic Fiber Co., Ltd.), the same example 5. The physical properties of the obtained textiles are shown in Table 10.

Comparative Example 5 - 2

A thin nylon cloth having a basis weight of 88 g/m ² and a cover factor of 3480 (transverse 70D_48f-semi-dull nylon; weft 70D-48f-fully matt nylon; manufactured by Toray Synthetic Fiber Co., Ltd.) was used, and the rest was the same as in Example 5, The physical properties of the obtained textiles are shown in Table 10.

It can be seen from the above table that if the grammage is too low, the obtained textile has poor ultraviolet shielding properties; if the grammage is too high, the obtained textile can obtain superior ultraviolet shielding properties, but has a poor hand feeling. Example 6

Using a thin nylon 6 fabric with a weight of 32 g/m ² and a cover factor of 1670 (longitudinal 20D-24f-fully matt nylon; weft 20D-24f-full matt nylon; manufactured by Toray Synthetic Fiber Co., Ltd.), refined by conventional methods scouring (sodium carbonate, 2g / L, Zaopian 2g / _L; 80 ° CX30 min), and dried (130 ° CX2 minutes), intermediate setting (160 ° CXL5 min), the fabric shown in table 11 into the treatment liquid composition ( In the bath ratio 1: 20), the temperature was raised to 98 ° C and the immersion treatment was carried out for 30 minutes. Then, fixing treatment (polyphenol condensate 2 g/L, 80 ° C X for 20 minutes), water washing, and drying were carried out in accordance with a conventional method to obtain a nylon fiber textile of Example 6.

Table 11

The physical properties of the obtained textiles are shown in Table 12. When the nylon fiber in the obtained textile was observed by FT-IR, it was found that there was an absorption peak (carbon group derived from a carboxyl group) in the vicinity of 1750 cm- ¹ , indicating that the organic acid remained on the nylon fiber after the processing.

Table 12

Example 7 Using a thin nylon 6 fabric with a weight of 32 g/m ² and a cover factor of 1670 (transverse 20D-24f - fully matt nylon; weft 20D-24f-full matt nylon; manufactured by Toray Synthetic Fiber Co., Ltd.), scouring by conventional methods (Sodium carbonate 2 _g / L, soap flakes 2 g / L; 80 ° C X 30 minutes), drying (130 ° C X 2 minutes), intermediate setting (160 ° C X 1. 5 minutes), the cloth is put into Table 13 In the treatment liquid (bath ratio 1:20) of the composition, the temperature was raised to 98 C and the immersion treatment was performed for 30 minutes. Then, fixing treatment (polyphenol condensate 2 g/L, 80 ° C X for 20 minutes), water washing, and drying were carried out in accordance with a conventional method to obtain a nylon fiber textile of Example 7.

Table 13

The physical properties of the obtained textiles are shown in Table 14. When the nylon fiber in the obtained textile was observed by FT-IR, it was found that there was an absorption peak (carbon group derived from a carboxyl group) in the vicinity of 1750 cm- ¹ , indicating that the organic acid remained on the nylon fiber after the processing.

Table 14

Example 8

Use a thin nylon 6 fabric with a weight of 60g/m ² and a cover factor of 2430 (longitude 30D_24f- Semi-dull nylon; latitudinal 40D- 34f-full matt nylon; manufactured by Toray Synthetic Fiber Co., Ltd., scouring by conventional methods (sodium carbonate 2g/L, soap flakes 2g/L; 80°CX 30 minutes), drying (130 After °CX (2 minutes) and intermediate setting (160 ° C for 1.5 minutes), the cloth was placed in a treatment liquid (bath ratio 1:20) having the composition shown in Table 15, and the temperature was raised to 95 ° C for 30 minutes to immerse. Then, fixing treatment (polyphenol condensate 2 g/L, 80 ° C X for 20 minutes), water washing, and drying were carried out in accordance with a conventional method to obtain a nylon fiber textile of Example 8.

The physical properties of the obtained textiles are shown in Table 16. When the nylon fiber in the obtained textile was observed by FT-IR, it was found that there was an absorption peak (carbon group derived from a carboxyl group) in the vicinity of 1750 cm- ¹ , indicating that the organic acid remained on the nylon fiber after the processing.

Table 16

Example 9

A thin nylon 6 fabric with a weight of 28 g/m ² and a coverage factor of 1670 (warp direction 10D_24f- Semi-dull nylon; weft 15D-24f-full matt nylon; manufactured by Toray Synthetic Fiber Co., Ltd., scouring by conventional methods (sodium carbonate 2g/L, soap flakes 2g/L; 80°CX 30 minutes), drying (130 After CX (2 minutes) and intermediate setting (160 °C X 1. 5 minutes), the fabric was poured into a treatment liquid (bath ratio 1:20) having the composition shown in Table 17, and the temperature was raised to 10 CTC for 60 minutes to immerse. Then, fixing treatment (polyphenol condensate 2 _g / L, 80 ° C X for 20 minutes), water washing, and drying were carried out in accordance with a conventional method to obtain a nylon fiber textile of Example 9.

Table 17

The physical properties of the obtained textiles are shown in Table 18. When the nylon fiber in the obtained textile was observed by FT-IR, it was found that there was an absorption peak (carbon group derived from a carboxyl group) in the vicinity of 1750 cm- ¹ , indicating that the organic acid remained on the nylon fiber after the processing.

Table 18

Example 10

A thin nylon 66 fabric with a weight of 54 g/m ² and a cover factor of 2570 (longitudinal 30D_24f-semi-dull nylon; latitudinal 30D-24f-fully matt nylon; manufactured by Toray Synthetic Fiber Co., Ltd.) was passed. The scouring is carried out by a conventional method (sodium carbonate 2 g/L, soap sheet 2 _g / L; 80 ° C X 30 minutes), drying (130 ° C X 2 minutes), intermediate setting (160 ° C X 1. 5 minutes), and then the cloth is put into In the treatment liquid (bath ratio 1:20) having the composition shown in Table 19, the temperature was raised to 90 ° C and the immersion treatment was carried out for 60 minutes. Then, the fixing treatment (polyphenol condensate 2 g/L, 80 ° C X for 20 minutes), water washing, and drying were carried out in accordance with a conventional method to obtain a nylon fiber textile of Example 10.

The physical properties of the obtained textiles are shown in Table 20. When the nylon fiber in the obtained textile was observed by FT-IR, it was found that there was an absorption peak (carbon group derived from a carboxyl group) in the vicinity of 1750 cm- ¹ , indicating that the organic acid remained on the nylon fiber after the processing.

Table 20

All patent documents and non-patent documents mentioned in the specification are herein incorporated by reference. The word "multiple" as used in the specification includes all cases of more than one, that is, "one or more" includes one, two, three, ... and the like. In this specification, when the upper limit and the lower limit are respectively described for a certain numerical range, or a combination of the upper limit and the lower limit is described, a certain value is described. In the range, each of the upper limit and the lower limit described in the above may be arbitrarily combined into a new numerical range, and the description of the numerical range combined with the direct and clear description should be regarded as the same. Variations and modifications of the invention may be made by those skilled in the art without departing from the scope of the invention, and these are also included in the scope of the invention.

Claims

A method for producing a UV-resistant nylon-based textile, characterized in that: in the presence of an organic acid, an organic ultraviolet absorber and an optical brightener are used for a thin nylon fabric having a basis weight of 25 to 60 g/m ² The treatment causes the organic ultraviolet absorber and the fluorescent whitening agent to enter the inside of the fiber to obtain an ultraviolet-resistant nylon-based textile.

The method for producing a UV-resistant nylon-based textile according to claim 1, wherein the thin nylon cloth has a cover factor of 1,500 to 3,000.

The method for producing a UV-resistant nylon-based textile according to claim 1 or 2, wherein the organic ultraviolet absorber is a non-reactive organic ultraviolet absorber and/or a reactive organic ultraviolet absorber.

The method for producing a UV-resistant nylon-based textile according to claim 3, wherein the non-reactive organic compound has the structure represented by the following formula (I):

Among them, for, d- ₆

Mercapto, — 0H, — 0CH ₃ , —SCH ₃ or

The method of producing a UV-resistant nylon-based textile according to claim 3, wherein the reactive organic ultraviolet absorber has a structure represented by the following formula:

Formula (II)

Wherein ^ is a fluorenyl group; _{3⁄4 is} -S0 ₃ H or -S0 ₃ X, and the X is selected from an alkali metal.

The method for producing a UV-resistant nylon-based textile according to claim 1, 2, 4 or 5, wherein the fluorescent whitening agent is a stilbene type, a coumarin type, a pyrazoline type, and a benzene. One or more of an oxygen-nitrogen type and a phthalimide type fluorescent whitening agent.

7. The method for producing a UV-resistant nylon-based textile according to claim 6, wherein the fluorescent whitening agent is a stilbene-type fluorescent whitening agent.

The method for producing a UV-resistant nylon-based textile according to claim 1, 2, 4 or 5, wherein the organic acid is formic acid, acetic acid, propionic acid, lactic acid, glycolic acid, propionic acid, lemon One or more of acid, oxalic acid, tartaric acid, maleic acid, and malic acid.

A UV-resistant nylon-based textile obtained by the production method according to any one of claims 1 to 8.

The UV-resistant nylon-based textile according to claim 9, wherein the UPF value of the anti-UV nylon textile is measured to be 30 or more according to the method of AS/NZS 4399-1996.

The UV-resistant nylon-based textile according to claim 10, wherein the UPF value of the anti-UV nylon-based textile is 40 or more according to the method of AS/NZS 4399-1996.

The UV-resistant nylon-based textile according to claim 11, wherein the UPF value of the anti-UV nylon textile is 50 or more according to the method of AS/NZS 4399-1996.