WO1998026125A1 - Traitement du papier pour la production de cuir synthetique et son procede d'application - Google Patents
Traitement du papier pour la production de cuir synthetique et son procede d'application Download PDFInfo
- Publication number
- WO1998026125A1 WO1998026125A1 PCT/JP1997/004548 JP9704548W WO9826125A1 WO 1998026125 A1 WO1998026125 A1 WO 1998026125A1 JP 9704548 W JP9704548 W JP 9704548W WO 9826125 A1 WO9826125 A1 WO 9826125A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- paper
- synthetic leather
- urethane resin
- process paper
- water
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/06—Embossing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2323/00—Polyalkenes
- B32B2323/10—Polypropylene
Definitions
- the present invention relates to a method for producing synthetic leather, and more particularly to a method for producing synthetic leather by wet production and a process paper used in the method. Furthermore, in detail, a uniform plastic resin layer is formed even on thin and difficult-to-handle substrates such as Tricot and Bennailon Tricot.
- the present invention relates to a wet process for producing synthetic leather and a process paper used in the process. Background art
- the wet method relating to the improvement of the present invention applies a urethane resin b on a substrate a such as a woven fabric, guides the urethane resin b into a coagulation tank c, Is solidified to form a film, washed in a washing tank d, dried in a dryer e, and then, if necessary, subjected to finishing or a laminated urethane resin outermost layer Thus, synthetic leather f is manufactured.
- g indicates a urethane resin tank.
- urethane resin when the urethane resin is directly applied to a substrate made of a soft material such as Tricot or Bennylon Tricot, the wet method is used. It is very difficult to coat urethane resin because of its softness, wrinkles, and high elasticity.It is also necessary to increase the amount of urethane resin applied. As a result, the thickness of the urethane resin layer is also increased, and there is a disadvantage that a thin material cannot be formed.
- an object of the present invention is to solve the above-mentioned disadvantages of the wet method and to provide a novel method for producing synthetic leather by a wet method that can be easily produced regardless of the type of the substrate.
- Another object of the present invention is to provide a process paper suitable for use in the wet production method. Disclosure of the invention
- the process paper for wet production of synthetic leather of the present invention is obtained by laminating a thermoplastic resin film on at least one surface of water-resistant paper such as synthetic paper in order to achieve the above-mentioned purpose. To become a It is characterized by
- the process paper for wet production of synthetic leather according to claim 2 is characterized in that the process paper is subjected to embossing.
- Norem consists of OPP, CPP, TPX or SPS, which are characterized by dry lamination or extruded lamination.
- the process paper for wet production of synthetic leather according to claim 4 is characterized in that the process paper has a specific gravity of 0.7 to 1.5.
- the method for producing a synthetic leather of the present invention is an applied processing method using the process paper, wherein a urethane resin is applied on a water-resistant process paper to form a urethane resin layer.
- the method is characterized in that the base is bonded to the urethane resin layer on the process paper and then guided into a coagulation tank, and the urethane resin is solidified in the coagulation tank to form a film.
- FIG. 1 is a process diagram showing the production steps of the method for producing synthetic leather of the present invention
- FIG. 2 is a process diagram showing a manufacturing process of a conventional wet method.
- a urethane resin is applied on a water-resistant process paper to form a urethane resin layer, and then a substrate is attached to the urethane resin layer.
- the urethane resin can be applied very thinly and uniformly on the process paper, and the subsequent adhesion of the base can be easily performed.
- the process paper needs to be guided into the coagulation tank, it needs to be water-resistant unlike the process paper of the conventional dry method.
- thermoplastic resin film such as OPP, CPP, TPX or SPS may be dry-laminated or extruded on at least one side of a synthetic paper made of thermoplastic resin such as polyester. It is necessary to use process paper with a laminated structure.
- the thickness of the water-resistant paper is preferably about 50 to 800 ⁇ m.
- the thickness of the thermoplastic synthetic resin film is preferably about 5 to 300 / zm.
- the process paper Since the base paper itself is water-resistant and the surface thereof is laminated with a thermoplastic synthetic resin film which is water-resistant and has a smooth surface, the process paper having such a configuration is used. It is excellent in the overall water resistance and also in the smoothness of the surface on which the urethane resin layer is formed. That is, it is possible to obtain a process paper which has high water resistance and high strength so that it can be reused, and is light in weight and excellent in workability because of excellent surface smoothness.
- thermoplastic resin film When laminating, it is preferable to use an adhesive mainly composed of the same material as the thermoplastic resin film from the viewpoint of water resistance and also from the viewpoint of preventing delamination.
- the specific gravity of this process paper is preferably in the range of 0.7 to 1.5. This is because if the specific gravity is less than 0.7, it is light, the secondary processing and workability are poor, there is no surviving film, and if the specific gravity exceeds 1.5. It is heavy and has problems.
- the urethane resin used in the present invention is not particularly limited as long as it is a urethane resin conventionally used in a wet method.
- a urethane dimethylformamide (DMF) solution is used as a raw material.
- the urethane resin is applied onto the process paper by a coating means such as a roll coater, a knife coater, a reverse coater, a curtain coater, or the like, for example, in the case of clothing, 0.4 to 0.8 ⁇ . About 0.7 to 1.5 / zm for shoes.
- the urethane resin was applied directly to the substrate, so that it could not be applied too thinly, but it could be applied very thinly. It becomes.
- the synthetic leather can be easily produced simply by sticking the base to the urethane resin applied on the process paper, guiding the base to the coagulation tank, and solidifying the urethane resin. be able to.
- a nonwoven fabric a woven fabric such as Tricot or Bennylon Tricot is used, and particularly, a substrate such as Tricot which is difficult to handle. It can be used even if there is.
- the coagulation tank may be the same as the coagulation tank in the conventional wet method.
- a DMF solution of a liquid type polyurethan is contained inside.
- an outermost surface layer made of urethane resin may be further provided on the urethane resin layer by a dry method.
- reference numeral 1 denotes a urethane resin tank, in which a raw material (urethane resin) 2 for forming a urethane resin layer composed of a one-liquid type polyurethan DMF solution is stored.
- a thick resin layer 5 is formed on the synthetic resin film surface of the paper 3 by using a knife coater 4 to a thickness of, for example, about 0.4 to 0.8 jum to form a urethane resin layer 5.
- a base 6 made of a tricot having a thickness of 0.1 to 3.0 mm is bonded by a bonding roller 7 and guided into a coagulation tank 8 to coagulate the urethane resin layer 5. I tried to do it.
- the coagulation bath 8 contains a coagulation liquid 9 mainly composed of water and DMF.
- the surface of the synthetic leather 12 thus obtained may be subjected to finishing such as embossing, or a separate dry-type urethane resin outermost layer may be provided. hand Is also good.
- process paper of the above embodiment may be embossed to produce embossed synthetic leather.
- the disadvantages of the conventional wet method can be eliminated, the substrate can be easily manufactured irrespective of the type of the substrate, and the handling can be made flexible, such as a tricot. It is possible to provide a method of wet-synthesizing a synthetic leather, which can apply a urethane resin layer uniformly and thinly even on a difficult substrate, and is suitable for use in this manufacturing method and has a repetitive property. A process paper that can be returned and used can be provided.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97947883A EP0885996A4 (en) | 1996-12-10 | 1997-12-10 | TREATING PAPER FOR PRODUCING ARTIFICIAL LEATHER AND METHOD FOR USING IT |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8346686A JPH10168761A (ja) | 1996-12-10 | 1996-12-10 | 湿式合成皮革製造用工程紙並びに応用加工方法 |
JP8/346686 | 1996-12-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998026125A1 true WO1998026125A1 (fr) | 1998-06-18 |
Family
ID=18385134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1997/004548 WO1998026125A1 (fr) | 1996-12-10 | 1997-12-10 | Traitement du papier pour la production de cuir synthetique et son procede d'application |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0885996A4 (ja) |
JP (1) | JPH10168761A (ja) |
KR (1) | KR19990082450A (ja) |
CN (1) | CN1210568A (ja) |
TW (1) | TW487760B (ja) |
WO (1) | WO1998026125A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3936219B2 (ja) * | 2002-03-28 | 2007-06-27 | リンテック株式会社 | 湿式合成皮革製造用工程フィルム |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04361671A (ja) * | 1991-06-07 | 1992-12-15 | Dainippon Printing Co Ltd | 工程離型紙 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1769555A1 (de) * | 1968-06-08 | 1972-03-30 | Kraemer Klaus Peter | Verfahren zum haftfesten Aufbringen von Loesungsmittel enthaltenden Kunststoffpasten auf geformte Textilunterlagen |
GB2036642B (en) * | 1978-10-13 | 1982-09-08 | Clemead Ltd | Method for the production of waterproof and like fabrics |
JP2627821B2 (ja) * | 1990-11-28 | 1997-07-09 | 三洋加工紙株式会社 | 型付き工程紙及びその製造方法 |
GB2285935B (en) * | 1994-02-01 | 1998-06-24 | Scapa Group Plc | Industrial fabric |
-
1996
- 1996-12-10 JP JP8346686A patent/JPH10168761A/ja not_active Withdrawn
-
1997
- 1997-12-09 TW TW086118501A patent/TW487760B/zh not_active IP Right Cessation
- 1997-12-10 WO PCT/JP1997/004548 patent/WO1998026125A1/ja not_active Application Discontinuation
- 1997-12-10 KR KR1019980706183A patent/KR19990082450A/ko not_active Application Discontinuation
- 1997-12-10 CN CN97192137A patent/CN1210568A/zh active Pending
- 1997-12-10 EP EP97947883A patent/EP0885996A4/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04361671A (ja) * | 1991-06-07 | 1992-12-15 | Dainippon Printing Co Ltd | 工程離型紙 |
Also Published As
Publication number | Publication date |
---|---|
KR19990082450A (ko) | 1999-11-25 |
JPH10168761A (ja) | 1998-06-23 |
CN1210568A (zh) | 1999-03-10 |
EP0885996A1 (en) | 1998-12-23 |
EP0885996A4 (en) | 2001-12-19 |
TW487760B (en) | 2002-05-21 |
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