DE2156990A1 - PROCESS FOR MANUFACTURING A TEXTILE NON WOVEN OR KNITTED ARTICLE BSP. A FLOOR CARPET - Google Patents

Description

Applicant: Societe SOMMläR S. A.

Title:

Process for the production of a textile non-woven or knitted article bsp. one

Floor carpet -

description

The invention relates to a method for producing a Non-woven textile article based on discontinuous fibers, at least some of which are made of synthetic homogeneous fibers consists of a single component and another part consists of synthetic heterogeneous Pipes made of at least two components, of which the one which is at least a fraction of the outer part which forms heterogeneous fibers, has a melting temperature which is lower than that part of the fiber which the middle part and / or the remaining outer part of the heterogeneous fiber forms. According to this procedure, different ones are mixed Types of fibers with the aim of achieving the most even distribution possible; you lay the fibers in shape of battens on top of each other like fleece and then needles the üoerjinu, nuergele; jten Laths or the fiber fleece around a needled s object au received; one dyes, impregnates or prints thereon the needled object and finally subjects the needled and dyed object to one

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209885/1144

Y / oxygen treatment in the absence of oxygen to remove the colorants to fix on the fibers and to melt the components that melt at a lower temperature so / ie the Pasern to connect with each other at numerous contact points.

Aian often uses fibers as synthetic heterogeneous fibers of two components, either with a lamellar arrangement or with a concentric arrangement of the mentioned components. The materials of the heterogeneous fibers are often polyamides 66 and 6, with polyamide 66 representing the central core and the polyamide 6 the outer tubular part in the case where a heterogeneous, consisting of two components Thread is used in a concentric arrangement.

The melting points -.es polyamide 6 are etv / a at 220 ° 0 and that of polyamide 66 is around 260 ° 0. The thermal Treatment of needled articles for large scope of consumption, E.g. iuatt ^ n or felts, at temperatures in the Magnitude of 220 ° C, makes quite heavy facilities and a considerable amount of energy is required. another, bigger! laughs part consists in the 'fact that the Treatment temperatures that are of the order of 220 C, affect a large number of dyes, so that outer range of colors for textile, not woven or knitted fabrics on the -j-round of synthetic

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BATH ORIGINAL

Pasern, the general poorness of the color scheme is very tight, the result of this often compromises suitability of this type of textile articles in their application, especially in floor coverings, ", tand clothing and entirely generally for furniture items.

It has already been suggested for heterogeneous fibers as a component or constituent of a low melting point, a copolymer or polymers of various types Polyamide 66 and 6 to be used and a polyamide 66 as a component with a high melting point. The melting point of the copolymer of polyamide 66 and 6 is between 160 and 190 C in a dry atmosphere, depending on the ratio of the best caidüuiie of the mentioned polymerizate. But even one The temperature of 160 ° 0 is still too high for a large number of dyes that are easily destructible and sensitive to heat are.

The Jrxi: adun _o has set itself the goal of avoiding the disadvantages mentioned and of realizing a method which allows perspiration points to be achieved between the teeth in treatments that do not value the dyes.

Dan., The invention is the melting point of the copolymers der Pol./^mide 66 and 6 üoch still further humiliated iii-

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follow the phenomena of hyurolvse, i / eiche itself in j-egen.vart from './ädserdainpf.

The orfiiidun ^ standard thermal process thus allows on the one hand fixing the dyes without damaging the dyes u.id on the other hand the mutual welding of the fibers by means of the vsrschweißende Component, i.e. the!, Iiscnpolyerisat made of polyamide, of heterogeneous fibers.

The object of the invention is still "oessei ¹ be understood from the following description of a non Ii ^ itativen embodiment of Herstellangüverf ahrerio for a liiciiü knitted or woven textile products.

'dan provides a first or a iaatte Ylies: .US di, 3kuircinuierlichen fibers ago, at least partially, and preferably a total,;, us consist of synthetic fibers, the above-ei described - embodiment were all fibers and synthetic fibers. The j / asernatto b ::; u. The fiber fleece can, however, contain a certain percentage of fibers. Generally preferred, but iu'üi a 4e -. ^ I ₁ ICh made of fibers, './which is partly synthetic, homogeneous fibers, outer! "Ouiponente or the only component of which has a fulfilled iJciimcila point, and a: iderteilu heterogeneous fiber : ¹ , ui ό miiiaesten; wei Best: lidtedlen has _f whose one

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SAD QRIGtMAL

One has a high melting point and the other a low one Has melting point. Although one is also more satisfactory / can use heterogeneous fibers in lamellar form, i.e. fibers, where the two components are in the form of foils, with their backs to each other and their free surfaces form the outer surface of the fibers, heterogeneous ones are preferred Fibers with a concentric arrangement, in which one of the constituent parts, namely the one with a raised melting point, die, jeele biluet, while the other, namely the component mix lower melting point, called the outer part of the on fiber bilaet.

In the exemplary embodiment, a similar and regular mixture of 50 percent by weight of fibers made of polyamide 6 3 (homogeneous fibers) and 50 percent by weight of heterogeneous concentric fibers, the core of which is made of polyamide 66 and the outer jacket or shell made of mixed polymer 66/6 , kan has been found that the welding between fibers len is iunier effectively and sufficiently, ao ^r 7eit aie "long heterogeneous parsers are not less than 30 u-ewichtsproz -.- nton .uesamthait of the fibers used. The ϋβη .- 'ϊ of homogeneous aisers, ie 70 - / o ia maximum, can be put uuiOh .j / nLnetiü jh ·: and / o-ier nnflrlifiliti J jern. lov ~ ; u .-, jv.el.ji won Jia !, ieiig .; iixtürxicher fibers under "JO, .- des., - ^ '. mcon J aj; r-, fj.vicht li.ig. ^ n.

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The I.iatte υ ζ ν /. cL \ 3 fleece made of fibers can be made from .ueiirereü lines produced v / erden, whose ^ usa ^ miensetaun ^ en slightly different can be, but wooei always remain in α en G-traps must, which are praiseed above. The presence of several different layers allows to achieve j? arbv / irkun.; cn au. This list will be given a first inspection under./orfeu, in such a way that ax is compressed and that the jasers each other Entangle each other, x.ian receives in this ./eise a ^ e- ^ needled articles, the aggregation of which is sufficient to

cancel the subsequent manipulations.

! The intensity of the first iadalun ^ icjt verliältnisuiäiiij sch \ 7aoh, dauit ausreicuenue Z \, ^isciienrc: remain .uae z.vischen different fibers, for / isulunraumu facilitate this Sv in the following J'ärbevor ^ ans the 'Durciidringen or penetration of Dyes down to the essence of the object.

The needled object is then subjected to a procedure, s ^ i 3j .ilo 'IiIia jin ^ .o iarobads, uux'oli Jas der ■ ie. ^ En.jtana /.so ^ n - / ir-l, anL es ait help of oppression ait Warbst of -Ο ... Al.-saann; / ird aer ^ df.rbte T- ^ gen- H hand needled, and Γι ', /: γ vor , u -y, / · -; ίο> ϊ in: j barker. ^ i-.je; dieso Iiadelun tJ _Nacht den Ha ^ enst.-nd t-coi.:pukter and can also cause j? arov / irkun-en. ,

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This particular needling is preferably accompanied by or ordered in a process of reducing or curling (oouclage), in the course of which we regularly alternate between the subjects of 'Je. ^ Evn holier density' ^ it zones achieved by fibers of lower density. This process of ... ingslns uz \ i. Curling (uou.clc.ige) is brought about by the help of needles (aiguilles de fourche), which are suitable for this purpose and where they penetrate or penetrate the blessing, which exude the oeite dr token and aie xn den ji ^ umen between uen different :! (raueliitiueln, aie 'are attached to a beam, against one another by press -; approach each other and uiteinanüer ausa ^ uenpresoen unu eo favor the formation of koirur.ktj.-unk ... · η between d-ii i'as ", whereby the yer ,, cnweijjun ,. ; 'z: i ± 3C-i ^ ii ä- ~ sn lurking wkh- _-o: .i'j del' iij.oiixol. ^ e.iaJii ^ .c; uöüoliv. ⁱ : di..ing will form .

.J-i'üich ./ird uer ,, o treated o-object continuously a tiier..iisclijii Yorfanreii in iegen./art von .. 'asserdau]: f underzwar iu .uv / es allness of oxygen, büp. in one

M ¹ I ₁ ^! j} uMi'Λo.,: ·; ■■ -}, d'-ßseii Teiaperatur: ^ ei 12Ό j is regulated. Under "^ w. / O ·;, xi-i.it by J., Uern t; o ± f" one does not need an ab-

.iiji'iit hu verütüjj'iii, _u u. aüj-n c-vj is sufficient tine re -i - ':; - iv.-it. .jer Qo (i ^r J: .iUt.: \. i f., jt'r Jt; iämlich imuei 'ei-.

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ÖAD ORJGfNAL

a certain amount of air that lies between the individual parts, but the presence of low-pressure water vapor in the area of the furnace essentially prevents air from entering Ivienge into the oven. The duration of use depends on the selected temperature. At a temperature of 120 O it is in the order of 15 minutes 140 C in the order of about 10 minutes and at 110 ° 0 on the order of about 20 minutes.

During this heat treatment, the dyes are fixed on the fibers and the fibers are welded together with each other at the contact points of the heterogeneous fibers with others.

The article produced according to the invention shows in particular all the necessary properties for use as a floor covering, namely special stability, general mechanical resistance and increased resistance to Terschleiß.

The exemplary embodiment just described can be modified in certain ways experienced without dai it dajit out of deai!. lame the Invention falls out.

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“AD ORIGINAL

Claims (5)

Patent claims: .) - Process for the production of a non-woven or knitted article essentially from discontinuous fibers, of which at least one part consists of homogeneous synthetic fibers and another portion of heterogeneous synthetic fibers (a; it has at least two components, of which the one of at least one Represents part of the outside of the heterogeneous fibers, has a melting temperature below that of the constituent which is in the middle of the fibers or forms the remainder of the outside of the heterogeneous fibers); In which process different types of fiber are mixed in order to achieve as regular a distribution as possible; In which method, furthermore, the fibers are superimposed in the manner of a nonwoven in ports of mats and the superimposed mats or the nonwoven are needled to obtain a needled object; In which process this needle-punched article is then dyed, impregnated or printed, and finally the needle-punched and printed article is subjected to a Viarmebehandlun ^ under the use of permanent material ... "in order to fix the paraffin on the fibers and that at a lower temperature To melt melting constituents and to weld the fibers with one another at numerous points of contact with one another, characterized in that the theruiijoh'i process to which the noodled object is subjected 2 ο ο η η ^r > / 1 ) a / » becomes, after, dyeing or printing in G-egenv / art of. '. / water vapor is carried out at temperatures of 100 ° - 150 ° G. 2. - The method according to claim 1, characterized in that the needled article is subjected to a second handling after dyeing and before the thermal treatment. 3. - The method according to claim 1, characterized in that the heat treatment of the object is carried out in a water vapor atmosphere whose pressure is slightly above atmospheric pressure. 4. - The method according to claim 2, characterized in that in the course of the second threading in the article, zones with a higher paser density are generated, which alternate regularly with zones of lower fiber density. 5. - The method according to any one of claims 2 to 4, daduroh ^ e- t that during the second loading the fibers be curled or napped at the same time. u η η η / 11 u / »