CN101440580A - Method of preparing back coated real leather intimating synthetic leather - Google Patents
Method of preparing back coated real leather intimating synthetic leather Download PDFInfo
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- CN101440580A CN101440580A CNA2008102339749A CN200810233974A CN101440580A CN 101440580 A CN101440580 A CN 101440580A CN A2008102339749 A CNA2008102339749 A CN A2008102339749A CN 200810233974 A CN200810233974 A CN 200810233974A CN 101440580 A CN101440580 A CN 101440580A
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Abstract
The invention discloses a method for manufacturing back-coated skin-imitated synthetic leather. The method comprises: coating wet-process PU slurry onto the surface of base cloth to form a base green body; after solidifying and washing the base green body, coating foaming slurry on the back of the base green body; washing and drying the base green body and foaming the base green body to form wet-process crust leather; and finally grinding the back of the wet-process crust leather and carrying out dry-process release paper pattern transfer to the front of the wet-process crust leather, wherein the foaming slurry comprises foaming resin ST-1030 or ST-1040, dimethylformamide (DMF), a foaming agent and so on. The method uses the prior synthesis device and research on special foaming slurry to carry out once forming process of the skin-imitated synthetic leather, namely, the method simplifies the prior post processing processes for producing skin-imitated synthetic leather such as pile coating, real leather powder coating and suede foaming into a wet-process once forming process.
Description
Technical field
The present invention relates to a kind of manufacturing technique of Synthetic Leather, specifically: relate to a kind of the back of the body and be coated with mode, reach the synthetic leather manufacturing technique that the synthetic leather back side has similar corium fabric institutional framework with wet method.
Background technology
Synthetic Leather (PU synthetic leather) be a kind of with various fabricbases as base material, on base material, apply polyurethane resin and make it give the artificial synthetic skin of various decorative patterns, pattern.For reaching the structure of fibrous tissue that the synthetic leather back side has corium, traditional manufacture method is: make base at the bottom of the wet method earlier, secondary operations is carried out at the base back side at the bottom of wet method again: flocking, plant modes such as corium powder, sheep crust foaming, and then crust leather carried out PROCESS FOR TREATMENT such as grinding, thereby reach the effect of the similar corium in the back side.The real leather intimating synthetic leather technological process of employing traditional handicraft manufacturing is long, equipment is numerous and jumbled, energy consumption is high, production efficiency is low, the rate of classification of product is low, kishke feel is poor.
Summary of the invention
The present invention is intended to propose a kind of manufacture method of back coated real leather intimating synthetic leather, the base back side, the end after washing is coated with the foaming slurry, washing oven dry post-foaming has that technological process is short, equipment is simplified, energy consumption is low, production efficiency is high, the rate of classification of product is high, kishke feel is strong, the characteristics of corium style variedization.
Technical scheme of the present invention is as follows:
A kind of manufacture method of back coated real leather intimating synthetic leather, be applied to the base cloth surface through wet method PU slurry and form end base, after solidifying, washing, it is characterized in that: coat the foaming slurry at the base back side, the end, then through foam after washing, the oven dry the wet method crust leather, at last the wet method crust leather back side is carried out that grinding is handled, wet crust leather front is carried out dry method release liners decorative pattern and shifted; The formulation by weight of described foaming slurry is:
100 parts of Foamexes
50～100 parts of dimethyl formamide DMF
0.5～6 part of blowing agent
0～15 part of solvent-borne type mill base.
The manufacture method of described back coated real leather intimating synthetic leather is characterized in that the formulation by weight of described foaming slurry is:
100 parts of Foamex ST-1040
55 parts of dimethyl formamide DMF
0.5 part of blowing agent 461DU40
5 parts of blowing agent 909DU80;
Described blowing temperature is 180 ℃, and the time is 8-12 second.
The manufacture method of described back coated real leather intimating synthetic leather is characterized in that the formulation by weight of described foaming slurry is:
100 parts of Foamex ST-1030
80 parts of dimethyl formamide DMF
0.5 part of blowing agent 461DU40
1.5 parts of blowing agent 461DU40
5 parts of solvent-borne type mill bases
Described blowing temperature is 135 ℃, and the time is 20 seconds.
The manufacture method of described back coated real leather intimating synthetic leather is characterized in that the formulation by weight of described foaming slurry is:
100 parts of Foamex ST-1040
80 parts of dimethyl formamide DMF
1 part of blowing agent 461DU40
3 parts of blowing agent 461DU40
2 parts of solvent-borne type mill bases
Described blowing temperature is 150 ℃, and the time is 10-20 second.
The manufacture method of described back coated real leather intimating synthetic leather is characterized in that described base cloth is knitted cloth, woven cloth, nonwoven fabric.
One of key point of the present invention: be to have water-fastly wash, the back of the body of anti-strong solvent is coated with the making of foaming slurry (traditional wet method back of the body is coated with slurry and can not foams, and the back of the body that can foam is coated with slurry and can not satisfies the wet production requirement); Two of key point: be the normal oven dry of base at the bottom of the wet method and the equilibrium relation between the foaming (in the oven dry warm area, the back of the body be coated with material and can not foam).
Unique distinction of the present invention is: the production of wet method crust leather and the back of the body are coated with foaming emulation skin with the one-shot forming on all one's life line, have that technological process is short, equipment is simplified, energy consumption is low, production efficiency is high, the rate of classification of product is high, kishke feel is strong, the characteristics of corium style variedization.
Description of drawings
Accompanying drawing 1 is one of manufacturing flow chart of emulation skin wet method crust leather;
Accompanying drawing 2 is two of the manufacturing flow chart of emulation skin wet method crust leather.
The specific embodiment:
Example 1:
A kind of manufacture method of back coated real leather intimating synthetic leather:
(1), knitting nylon loop is made the wet method base material.
(2), wet method singly is coated with the preparation of material: make slurry by traditional wet method PU slurry system that singly is coated with, cutter is applied to base material, solidifies, washes.
(3), the wet method back of the body is coated with the preparation of foamed material;
Prescription by slurry is by weight:
100 parts of Foamexes (ST-1030)
80 parts of dimethyl formamides (DMF)
0.5 part of blowing agent (461DU40)
1.5 parts of blowing agents (461DU40)
5 parts of solvent-borne type mill bases
(4), the slurry that will the foam back of the body is applied to base, oven dry then at the bottom of the wet method: 120 ℃ of * 3 minutes, foaming: 20 seconds low-temp foamings of 135 ℃ of *;
(5), the post processing grinding of the wet method crust leather back side is handled: 80 order sand paper grindings are handled;
(6), the positive dry method release liners of wet crust leather decorative pattern shifts.
Example 2,
A kind of manufacture method of back coated real leather intimating synthetic leather:
(1), 0.9mm*220g/m
2Wash entirely and make base material;
(2), the cutter of wet method DC process stream is coated with, solidifies, washes: by traditional DC technical recipe system.
(3), the wet method back of the body is coated with the preparation of foamed material;
Prescription by slurry is by weight:
100 parts of Foamexes (ST-1040)
80 parts of dimethyl formamides (DMF)
1 part of blowing agent (461DU40)
3 parts of blowing agents (461DU40)
2 parts of solvent-borne type mill bases
(4), the slurry that will the foam back of the body is applied to base, oven dry then at the bottom of the wet method: 130 ℃ of * 3 minutes, foaming: 150 ℃ of * foaming in 15 seconds;
(5), the post processing grinding of the wet method crust leather back side is handled: 150 order sand paper grindings are handled;
(6), the positive dry method release liners of wet crust leather decorative pattern shifts.
Example 3
A kind of manufacture method of back coated real leather intimating synthetic leather:
(1), the woven cloth of the two-sided nylon loop of 0.60mm is made the wet method base material;
(2), the cutter of wet method DC material is coated with, solidifies, washes: by traditional DC technical recipe system.
(3), the wet method back of the body is coated with the preparation of foamed material;
Prescription by slurry is by weight:
100 parts of Foamexes (ST-1040)
55 parts of dimethyl formamides (DMF)
0.5 part of blowing agent (461DU40)
5 parts of blowing agents (909DU80)
(4), the slurry that will the foam back of the body is applied to base, oven dry then at the bottom of the wet method: 120 ℃ of * 2.5 minutes, foaming: 180 ℃ of * high temperature foaming in 10 seconds;
(5), the post processing grinding of the wet method crust leather back side is handled: 240 order sand paper grindings are handled;
(6), the positive dry method release liners of wet crust leather decorative pattern shifts.
Illustrate:
One, blowing agent 461UD40,909UD80,950UD120 manufacturer: Expancel, the place of production: Sweden;
Two, Foamex: ST-1030, ST-1040 manufacturer: Amway chemical industry Co., Ltd, the place of production: Hefei.
Claims (5)
1, a kind of manufacture method of back coated real leather intimating synthetic leather, be applied to the base cloth surface through wet method PU slurry and form end base, after solidifying, washing, it is characterized in that: coat the foaming slurry at the base back side, the end, then through foaming and make the wet method crust leather after washing, the oven dry, at last the wet method crust leather back side is carried out that grinding is handled, wet crust leather front is carried out dry method release liners decorative pattern and shifted; The formulation by weight of described foaming slurry is:
100 parts of Foamexes
50～100 parts of dimethyl formamide DMF
0.5～6 part of blowing agent
0～15 part of solvent-borne type mill base.
2, the manufacture method of back coated real leather intimating synthetic leather according to claim 1 is characterized in that the formulation by weight of described foaming slurry is:
100 parts of Foamex ST-1040
55 parts of dimethyl formamide DMF
0.5 part of blowing agent 461DU40
5 parts of blowing agent 909DU80;
Described blowing temperature is 180 ℃, and the time is 8-12 second.
3, the manufacture method of back coated real leather intimating synthetic leather according to claim 1 is characterized in that the formulation by weight of described foaming slurry is:
100 parts of Foamex ST-1030
80 parts of dimethyl formamide DMF
0.5 part of blowing agent 461DU40
1.5 parts of blowing agent 461DU40
5 parts of solvent-borne type mill bases
Described blowing temperature is 135 ℃, and the time is 20 seconds.
4, the manufacture method of back coated real leather intimating synthetic leather according to claim 1 is characterized in that the formulation by weight of described foaming slurry is:
100 parts of Foamex ST-1040
80 parts of dimethyl formamide DMF
1 part of blowing agent 461DU40
3 parts of blowing agent 461DU40
2 parts of solvent-borne type mill bases
Described blowing temperature is 150 ℃, and the time is 10-20 second.
5, the manufacture method of back coated real leather intimating synthetic leather according to claim 1 is characterized in that described base cloth is knitted cloth, woven cloth, nonwoven fabric.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102339749A CN101440580B (en) | 2008-12-18 | 2008-12-18 | Method of preparing back coated real leather intimating synthetic leather |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008102339749A CN101440580B (en) | 2008-12-18 | 2008-12-18 | Method of preparing back coated real leather intimating synthetic leather |
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| CN101440580A true CN101440580A (en) | 2009-05-27 |
| CN101440580B CN101440580B (en) | 2012-05-23 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886341A (en) * | 2010-06-30 | 2010-11-17 | 安徽安利合成革股份有限公司 | Method for producing buffed velvet skin-imitated polyurethane synthetic leather |
| CN103507378A (en) * | 2012-06-19 | 2014-01-15 | 昆山协润人造皮有限公司 | Making method of foaming PU (polyurethane) leather |
| CN103526560A (en) * | 2013-10-12 | 2014-01-22 | 安徽安利合成革股份有限公司 | Manufacturing method of suede leather polyurethane synthetic leather with high physical properties |
| CN105671991A (en) * | 2016-03-09 | 2016-06-15 | 陕西科技大学 | Cleaner production technique for polyurethane synthetic leather based on release film transfer coating |
| CN106087448A (en) * | 2016-08-19 | 2016-11-09 | 安徽安利材料科技股份有限公司 | A kind of preparation method of soft matte high resiliency artificial leather polyurethane synthetic leather for sofa furniture |
| CN109252384A (en) * | 2018-10-18 | 2019-01-22 | 清远市齐力合成革有限公司 | A kind of two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance |
| CN111021080A (en) * | 2019-12-27 | 2020-04-17 | 福建宝利特科技股份有限公司 | Plastic-uptake saddle leather with high physical property and preparation method thereof |
| CN114645460A (en) * | 2022-01-26 | 2022-06-21 | 合肥科天水性科技有限责任公司 | Preparation method of waterborne polyurethane high-physical-property high-density space leather base |
-
2008
- 2008-12-18 CN CN2008102339749A patent/CN101440580B/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886341A (en) * | 2010-06-30 | 2010-11-17 | 安徽安利合成革股份有限公司 | Method for producing buffed velvet skin-imitated polyurethane synthetic leather |
| CN101886341B (en) * | 2010-06-30 | 2012-08-08 | 安徽安利合成革股份有限公司 | Method for producing buffed velvet skin-imitated polyurethane synthetic leather |
| CN103507378A (en) * | 2012-06-19 | 2014-01-15 | 昆山协润人造皮有限公司 | Making method of foaming PU (polyurethane) leather |
| CN103507378B (en) * | 2012-06-19 | 2015-11-04 | 昆山协润人造皮有限公司 | The preparation method that polyurethane foam PU removes from office |
| CN103526560A (en) * | 2013-10-12 | 2014-01-22 | 安徽安利合成革股份有限公司 | Manufacturing method of suede leather polyurethane synthetic leather with high physical properties |
| CN103526560B (en) * | 2013-10-12 | 2016-04-20 | 安徽安利材料科技股份有限公司 | A kind of manufacture method of high physical property suede Synthetic Leather |
| CN105671991A (en) * | 2016-03-09 | 2016-06-15 | 陕西科技大学 | Cleaner production technique for polyurethane synthetic leather based on release film transfer coating |
| CN106087448A (en) * | 2016-08-19 | 2016-11-09 | 安徽安利材料科技股份有限公司 | A kind of preparation method of soft matte high resiliency artificial leather polyurethane synthetic leather for sofa furniture |
| CN109252384A (en) * | 2018-10-18 | 2019-01-22 | 清远市齐力合成革有限公司 | A kind of two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance |
| CN111021080A (en) * | 2019-12-27 | 2020-04-17 | 福建宝利特科技股份有限公司 | Plastic-uptake saddle leather with high physical property and preparation method thereof |
| CN114645460A (en) * | 2022-01-26 | 2022-06-21 | 合肥科天水性科技有限责任公司 | Preparation method of waterborne polyurethane high-physical-property high-density space leather base |
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| Publication number | Publication date |
|---|---|
| CN101440580B (en) | 2012-05-23 |
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Owner name: ANHUI ANLI MATERIAL TECHNOLOGY CO., LTD. Free format text: FORMER NAME: ANHUI ANLI ARTIFICIAL LEATHER CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 230601 peach blossom Industrial Park, Hefei Economic Development Zone, Anhui Patentee after: Anhui Amway material Science and Technology Co., Ltd. Address before: 230601 peach blossom Industrial Park, Hefei Economic Development Zone, Anhui Patentee before: Anhui Anli Artificial Leather Co., Ltd. |