CN1058228C - Polyurethane leather surface printing method by wet process - Google Patents
Polyurethane leather surface printing method by wet process Download PDFInfo
- Publication number
- CN1058228C CN1058228C CN97108230A CN97108230A CN1058228C CN 1058228 C CN1058228 C CN 1058228C CN 97108230 A CN97108230 A CN 97108230A CN 97108230 A CN97108230 A CN 97108230A CN 1058228 C CN1058228 C CN 1058228C
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- Prior art keywords
- leather
- polyurethane
- printing
- polyurethane leather
- wet process
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The present invention relates to a surface printing method for polyurethane leather by a wet process. The surface of a printing roller of a concave board with electronic engraving patterns is coated with a layer of dimethyl formamide solution, the pattern engraving depth is from 2 silks to 4 silks, and then the surface of polyurethane leather is printed on a three-board printing machine; polyurethane is dissolved by the dimethyl formamide solution, and therefore, the surface of the leather forms concave patterns with certain depth so that a compact layer of the surface of the leather is destroyed, and the ventilation of the polyurethane leather is enhanced. The present invention has the advantages of simple operation technology and good printing effect, effectively enhances the service performance of artificial leather, and is suitable for industrialized mass production as well as being used as an updated and upgraded technology of the existing surface printing technology for the artificial leather.
Description
The invention discloses a kind of polyurethane leather surface printing method by wet process.
The wet polyurethane leather since the fifties comes out, because of its outward appearance, feel, wholesomeness all can be good than the PVC leather, thereby, expanded the application of artificial leather greatly, technology, technology have all obtained very fast development; But owing to due to this body structure of wet polyurethane leather, make its gas permeability still can not satisfy the needs of use; Because of the polyurethane leather cross-sectional structure can be divided into three layers from see in form, at first be the binder course of polyurethane coating and base cloth, the polyurethane of this layer structure is wrapped up in abdomen and fiber, but is not adhesion, and therefore, the ventilative power of this layer structure is strong; Next is middle one-tenth flesh layer, and this layer structure abscess is very big, and is interconnected, and therefore, has extremely strong venting capability; Be the top layer once more, because top layer polyurethane contacts water at first, setting rate is the fastest, therefore, the surface abscess is very trickle, is commonly referred to as compacted zone, and this layer venting capability is minimum, just because of the effect of compacted zone, the whole venting capability of polyurethane leather is descended, can not satisfy the needs of some use.The leather surface typography of commonly using only is to apply one deck seal material at leather surface, makes the leather partial thickening, and permeability reduces.
The object of the present invention is to provide a kind of operating procedure simple, can effectively improve the polyurethane leather surface printing method by wet process of polyurethane leather top layer permeability.
The present invention adopts following proposal to realize: it is to be coated with one deck dimethyl formamide solution on the gravure roll surface of the decorative pattern of electronic engraving, the decorative pattern carving degree of depth on wherein said gravure roll surface is at the 2-4 silk, then, on intaglio press to polyurethane skin surface stamp, because dimethyl formamide solution is to the solvability extra-heavy of polyurethane, and dissolution velocity is fast, therefore, polyurethane leather is after printing, promptly form the depression decorative pattern of certain depth, thereby, destroyed the compacted zone of polyurethane leather surface effectively, can greatly improve the permeability of polyurethane leather.
Specific embodiments of the invention are sketched in following:
With concentration is that to be applied to the decorative pattern carving depth be on 3 the gravure roll for 50%～80% dimethyl formamide solution, scrape off excessive solution with blade, then to the polyurethane leather surface printing, because of dimethyl formamide extremely strong to the solvability of polyester leather, therefore, polyurethane leather surface after printing will produce the depression decorative pattern of 3 left and right sides degree of depth, the position that the polyurethane leather surface compacted zone is printed onto is destroyed, can increase the aesthetic property of leather surface greatly, change traditional leather surface stamp and printed material and pigment can only be applied to leather surface, increase leather local thickness, reduce the process of its gas permeability; When changing the leather surface aesthetic property, promoted the leather gas permeability.
In sum, operating procedure of the present invention is simple, and printing effect is good, can effectively improve poly-ammonia The gas permeability of ester skin effectively promotes the serviceability of artificial leather, is suitable for industrialized production, Be suitable for the update upgrading process as existing artificial leather surface printing technique.
Claims (1)
- A kind of printing process of wet polyurethane leather surface, it is characterized in that: the gravure roll surface at the decorative pattern of electronic engraving is coated with one deck dimethyl formamide solution, the decorative pattern carving depth on wherein said gravure roll surface is the 2-4 silk, then, on intaglio press to polyurethane skin surface stamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97108230A CN1058228C (en) | 1997-09-19 | 1997-09-19 | Polyurethane leather surface printing method by wet process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97108230A CN1058228C (en) | 1997-09-19 | 1997-09-19 | Polyurethane leather surface printing method by wet process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1212210A CN1212210A (en) | 1999-03-31 |
| CN1058228C true CN1058228C (en) | 2000-11-08 |
Family
ID=5170246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97108230A Expired - Fee Related CN1058228C (en) | 1997-09-19 | 1997-09-19 | Polyurethane leather surface printing method by wet process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1058228C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935108A (en) * | 2013-01-22 | 2014-07-23 | 吕东鸿 | Artificial leather substrate and shaping and manufacturing method thereof |
| CN103306082A (en) * | 2013-05-22 | 2013-09-18 | 海安县联发弘佳纺织有限公司 | Pattern nested printing process |
| CN106696496B (en) * | 2016-11-17 | 2019-11-12 | 际华三五一五皮革皮鞋有限公司 | A kind of method of fixed silk-screen |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85104486A (en) * | 1985-06-05 | 1986-12-03 | 上海第二印染厂 | Printed leather and manufacture method thereof |
| CN1094755A (en) * | 1993-11-30 | 1994-11-09 | 许俊雄 | Method for making polyurethane Erlang leather |
| CN1104689A (en) * | 1993-05-17 | 1995-07-05 | 联合特别公司 | Three needle stitch with cover thread |
-
1997
- 1997-09-19 CN CN97108230A patent/CN1058228C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85104486A (en) * | 1985-06-05 | 1986-12-03 | 上海第二印染厂 | Printed leather and manufacture method thereof |
| CN1104689A (en) * | 1993-05-17 | 1995-07-05 | 联合特别公司 | Three needle stitch with cover thread |
| CN1094755A (en) * | 1993-11-30 | 1994-11-09 | 许俊雄 | Method for making polyurethane Erlang leather |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1212210A (en) | 1999-03-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANGSHA CHINA SCIENCE CO., LTD. Free format text: FORMER OWNER: ANSU PLASTIC PRODUCTS FACTORY, CHANGSHA Effective date: 20011229 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20011229 Patentee after: Changsha China Science and Technology Co Ltd Patentee before: Ansu Plastic Products Factory, Changsha |
|
| ASS | Succession or assignment of patent right |
Owner name: CHANGSHA ZHONGYUAN TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ANSU PLASTIC PRODUCTS FACTORY, CHANGSHA Effective date: 20020312 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20020312 Patentee after: Changsha Zhongyuan Science and Technology Co., Ltd. Patentee before: Ansu Plastic Products Factory, Changsha |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |