WO1997016597A1 - Process for preparing hydrolyzable sheet - Google Patents
Process for preparing hydrolyzable sheet Download PDFInfo
- Publication number
- WO1997016597A1 WO1997016597A1 PCT/JP1996/003213 JP9603213W WO9716597A1 WO 1997016597 A1 WO1997016597 A1 WO 1997016597A1 JP 9603213 W JP9603213 W JP 9603213W WO 9716597 A1 WO9716597 A1 WO 9716597A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- sheet
- salt
- base
- mixture
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/25—Cellulose
- D21H17/26—Ethers thereof
Definitions
- the present invention relates to a water-disintegrable sheet that disperses or dissolves in water.
- Ettowipes are well known. In addition, it can be dispersed or dissolved when thrown into water such as a washing toilet, and can be washed away as it is.
- Water dispersibility typified by EttWives Water-disintegrating sheets are also well known. Here, water dispersibility and water dissolvability are synonymous, and have such properties.
- Etto vibes have high strength when used in a wet state And quick dispersibility when poured into a large amount of water. In order to achieve both the strength and the dispersibility, Japanese Patent Application Laid-Open No. H11-68999 discloses a water-insoluble canoleboxime methylose cellulose sodium.
- JP-B-48-27605 discloses a papermaking method in which an aqueous solution of metal is sprayed on wet paper made by using water-insoluble carboxymethyl cellulose. Is disclosed.
- Japanese Unexamined Patent Publication (Kokai) No. 3-167040 papermaking is carried out by mixing an alkali metal salt of water-insoluble carboxymethylcellulose with a stock.
- Japanese Patent Publication No. Hei 5 — 257972 discloses that paper made by mixing an alkali metal salt of carboxymethylcellulose with paper stock contains polyvalent zinc. Impregnated with all hydrous organic solvents.
- the carboxymethylcellulose and the salt thereof used as a binder in the prior art generally have a substitution degree (D.S.), As the pH increases, it changes from water-insoluble to swellable and becomes water-soluble. When paper is made from these carboxyl methylcellulose or its salts, and the binder is made into a sheet, if the binder has a high swelling property, Uniform mixing with the fiber becomes difficult, and if it is water-soluble, the amount of adhesion to the sheet is small, and the sheet is suitable for the binder usage. Sometimes the strength does not improve. In addition, in the process of applying a binder to the sheet obtained later by spraying, the swelling ability of canolepox methylcellulose and its salt is high. As a result, the viscosity of the aqueous solution increases, and uniform spraying becomes difficult.
- D.S. substitution degree
- the present invention presupposes the use of cellulose and cellulose or its salt and water-dispersible fiber. This is a method for producing a water dissolution sheet.
- Water-insoluble or water-insoluble carboxymethyl cellulose or a mixture of its salt and water-dispersible fiber becomes the above-mentioned hydrolytic sheet through a papermaking process.
- a base may be added to the mixture either before or after the papermaking step in the production step.
- the base is sodium carbonate.
- the production method according to the present invention includes Sheet over preparative the ⁇ et Tsu preparative follower BEST MODE FOR impregnation step you implement also Oh O 0 invention and this that is part of the Lee TOPS chemical solution
- the raw material used in the production method according to the present invention can be made into a sheet together with carboxymethinoreserulose and / or a salt thereof.
- a base is added to the binder to change it to a highly water-swellable or water-soluble one.
- Any base can be used for the base, but it is preferable to use sodium carbonate. It is preferred to use well-known papermaking techniques to sheet the mixture of fiber and binder. In addition, a wet or dry nonwoven fabric manufacturing technology, a nonwoven fabric manufacturing technology using high-pressure jet water ( ⁇ tage jet), and the like can also be used.
- the base may be added to the binder at any time before or after the papermaking process. The papermaking process itself can be considered to be included either before or after these. The present invention will be described in detail below based on examples.
- Softwood pulp for papermaking (NBKP) and carboxy Suspension and its salt were mixed with tap water, and a required amount of sodium carbonate was added to the dispersed liquid to dissolve it into paper stock. After leaving it to stand, it is paper-made with a small test paper machine, and the obtained wet paper web is dried at 110 ° C for 90 seconds using a rotating drum type drier to obtain a basis weight of 40 g. A dried sheet of Z m 2 was obtained.
- propylene glycol, calcium chloride / ion exchange water 30 / 0.5 / 69.5 (weight ratio) The sheet is impregnated with this mixture by spraying only 2.5 times its weight and left still at 20 ° C for 24 hours.
- A The specimen shreds within 100 seconds.
- Breaking strength when pulling an Etwipes specimen of width 25 mm x length 150 mm at a check interval of 100 mm and a tensile speed of 100 mm Z min was measured. If the breaking strength was at least 300 g, ⁇ Ettowipes did not become insufficient in practical use o
- the amount of sodium carbonate is 10 to 400% by weight of carboxymethylcellulose and / or its salt.
- the weight ratio of pulp to carboxymethyl cellulose and / or its salt is in the range of 98: 2 to 55:45.
- the concentration of pulp and pulp in the paper stock occupied by sorghum and / or its salt is 0.5 to 5% by weight. %
- the standing time after addition of sodium carbonate is preferably 30 minutes or more.
- t t
- CMC Carboxymethylcellulose and / or its salt
- NNKP softwood pulp
- Table 2 shows the evaluation results of the examples and comparative examples.
- 3 ⁇ 4SS example 6 3 87.5 / 12.5 * 0.50 7 .3 8.0 A 3 8 0 Comparative example 6 1 87.5 / 12.5 * 0.50 7 .3 0 .0 C 4 3 8
- Example 7 1 87.5 / 12.5 * 0.43 6 .18.0 A 4 0 1
- Example 7 2 87.5 / 12.5 * 0.50 7 .3 8.0 A 3 8 0
- Example 7 1 87.5 / 12.5 * * 0.64 3.9 8.0 A 1 3 3
- Example 7 2 87.5 / 12.5 * 0.88 6.9 8.0 A 8 3
- a low swelling or water-insoluble ureoboxyl methylcellulose and / or a salt thereof are combined with a binder. And then mixed with the water-dispersible fibers, it is easy to attach a large amount of binder to a sheet obtained from the mixture.
- Such an inorganic material is not water-swellable or water-soluble due to the addition of a base, contributing to the improvement of the wet strength of the hydrolyzed sheet, and is used.
- the water-disintegrated paper later is put into a large amount of water, it dissolves and swells quickly, enabling rapid dispersion of the water-disintegrated sheet.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002208759A CA2208759C (en) | 1995-11-02 | 1996-11-01 | Process for manufacturing a water-disintegrable sheet |
EP96935528A EP0802282A1 (en) | 1995-11-02 | 1996-11-01 | Process for preparing hydrolyzable sheet |
KR1019970704561A KR100235789B1 (en) | 1995-11-02 | 1996-11-01 | Process for manufacturing a water-disintegrable sheet |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28548095A JP3150587B2 (en) | 1995-11-02 | 1995-11-02 | Water disintegration sheet manufacturing method |
JP7/285479 | 1995-11-02 | ||
JP28547995A JP3150586B2 (en) | 1995-11-02 | 1995-11-02 | Water disintegration sheet manufacturing method |
JP7/285480 | 1995-11-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997016597A1 true WO1997016597A1 (en) | 1997-05-09 |
Family
ID=26555907
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1996/003213 WO1997016597A1 (en) | 1995-11-02 | 1996-11-01 | Process for preparing hydrolyzable sheet |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0802282A1 (en) |
KR (1) | KR100235789B1 (en) |
CN (1) | CN1084415C (en) |
CA (1) | CA2208759C (en) |
MY (1) | MY125612A (en) |
TW (1) | TW306943B (en) |
WO (1) | WO1997016597A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1089832C (en) * | 1996-07-26 | 2002-08-28 | 尤尼佳股份有限公司 | Manufacturing method for wet napkin |
US6814974B2 (en) | 2000-05-04 | 2004-11-09 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
US6828014B2 (en) | 2001-03-22 | 2004-12-07 | Kimberly-Clark Worldwide, Inc. | Water-dispersible, cationic polymers, a method of making same and items using same |
US6835678B2 (en) | 2000-05-04 | 2004-12-28 | Kimberly-Clark Worldwide, Inc. | Ion sensitive, water-dispersible fabrics, a method of making same and items using same |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3865506B2 (en) * | 1997-09-08 | 2007-01-10 | ユニ・チャーム株式会社 | Water-decomposable fiber sheet containing fibers with different fiber lengths |
US6713414B1 (en) | 2000-05-04 | 2004-03-30 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
US6579570B1 (en) | 2000-05-04 | 2003-06-17 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
US6423804B1 (en) | 1998-12-31 | 2002-07-23 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive hard water dispersible polymers and applications therefor |
SE9903418D0 (en) * | 1999-09-22 | 1999-09-22 | Skogsind Tekn Foskningsinst | Method for modifying cellulose-based fiber materials |
JP2001098489A (en) * | 1999-09-30 | 2001-04-10 | Uni Charm Corp | Water-disintegrable fibrous sheet containing water- insoluble carboxymethyl cellulose |
JP3703661B2 (en) * | 1999-10-05 | 2005-10-05 | ユニ・チャーム株式会社 | Water-decomposable fiber sheet containing gel compound |
EP1234072B1 (en) | 1999-11-23 | 2012-04-11 | Kimberly-Clark Worldwide, Inc. | Sanitary tissue products with improved flushability |
JP3722665B2 (en) * | 2000-03-31 | 2005-11-30 | ユニ・チャーム株式会社 | Multi-structured water-decomposable wiping sheet |
US6815502B1 (en) | 2000-05-04 | 2004-11-09 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive, water-dispersable polymers, a method of making same and items using same |
US6548592B1 (en) | 2000-05-04 | 2003-04-15 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
US6599848B1 (en) | 2000-05-04 | 2003-07-29 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
US6683143B1 (en) | 2000-05-04 | 2004-01-27 | Kimberly Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
US6653406B1 (en) | 2000-05-04 | 2003-11-25 | Kimberly Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
EP1167510A1 (en) * | 2000-06-23 | 2002-01-02 | The Procter & Gamble Company | Flushable hard surface cleaning wet wipe |
JP2002078733A (en) | 2000-06-28 | 2002-03-19 | Uni Charm Corp | Absorptive article |
US6586529B2 (en) | 2001-02-01 | 2003-07-01 | Kimberly-Clark Worldwide, Inc. | Water-dispersible polymers, a method of making same and items using same |
MXPA04012890A (en) | 2002-06-19 | 2005-03-31 | Bayer Chemicals Corp | Strong and dispersible paper products. |
KR102635615B1 (en) | 2023-07-04 | 2024-02-14 | 주식회사 정우세이프티 | Signs outputting safety information and method for providing safety information of signs |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01168999A (en) * | 1987-12-23 | 1989-07-04 | Kao Corp | Cleaning material easily dispersible in water |
JPH038897A (en) * | 1989-03-25 | 1991-01-16 | Lion Corp | Water-degradable and water-absorptive sheet-like form and production thereof |
JPH03167400A (en) * | 1989-11-27 | 1991-07-19 | Nichirin Kagaku Kogyo Kk | Hydrolyzable paper |
JPH06192991A (en) * | 1992-10-29 | 1994-07-12 | Nichirin Kagaku Kogyo Kk | Production of water-dispersible sheet |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03180596A (en) * | 1989-12-06 | 1991-08-06 | Nichirin Kagaku Kogyo Kk | Water-soluble paper giving little dissolution residue |
US5487813A (en) * | 1994-12-02 | 1996-01-30 | The Procter & Gamble Company | Strong and soft creped tissue paper and process for making the same by use of biodegradable crepe facilitating compositions |
-
1996
- 1996-11-01 KR KR1019970704561A patent/KR100235789B1/en not_active IP Right Cessation
- 1996-11-01 MY MYPI9604567 patent/MY125612A/en unknown
- 1996-11-01 WO PCT/JP1996/003213 patent/WO1997016597A1/en active IP Right Grant
- 1996-11-01 CA CA002208759A patent/CA2208759C/en not_active Expired - Fee Related
- 1996-11-01 EP EP96935528A patent/EP0802282A1/en not_active Withdrawn
- 1996-11-01 CN CN96191731A patent/CN1084415C/en not_active Expired - Fee Related
- 1996-11-19 TW TW85114165A patent/TW306943B/zh not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01168999A (en) * | 1987-12-23 | 1989-07-04 | Kao Corp | Cleaning material easily dispersible in water |
JPH038897A (en) * | 1989-03-25 | 1991-01-16 | Lion Corp | Water-degradable and water-absorptive sheet-like form and production thereof |
JPH03167400A (en) * | 1989-11-27 | 1991-07-19 | Nichirin Kagaku Kogyo Kk | Hydrolyzable paper |
JPH06192991A (en) * | 1992-10-29 | 1994-07-12 | Nichirin Kagaku Kogyo Kk | Production of water-dispersible sheet |
Non-Patent Citations (1)
Title |
---|
See also references of EP0802282A4 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1089832C (en) * | 1996-07-26 | 2002-08-28 | 尤尼佳股份有限公司 | Manufacturing method for wet napkin |
US6814974B2 (en) | 2000-05-04 | 2004-11-09 | Kimberly-Clark Worldwide, Inc. | Ion-sensitive, water-dispersible polymers, a method of making same and items using same |
US6835678B2 (en) | 2000-05-04 | 2004-12-28 | Kimberly-Clark Worldwide, Inc. | Ion sensitive, water-dispersible fabrics, a method of making same and items using same |
US6828014B2 (en) | 2001-03-22 | 2004-12-07 | Kimberly-Clark Worldwide, Inc. | Water-dispersible, cationic polymers, a method of making same and items using same |
Also Published As
Publication number | Publication date |
---|---|
KR987001056A (en) | 1998-04-30 |
EP0802282A4 (en) | 1997-11-05 |
KR100235789B1 (en) | 1999-12-15 |
CN1084415C (en) | 2002-05-08 |
CN1172515A (en) | 1998-02-04 |
TW306943B (en) | 1997-06-01 |
EP0802282A1 (en) | 1997-10-22 |
CA2208759A1 (en) | 1997-05-09 |
CA2208759C (en) | 2003-03-11 |
MY125612A (en) | 2006-08-30 |
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