CN103507379A - Preparation method of double-sided leather - Google Patents
Preparation method of double-sided leather Download PDFInfo
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- CN103507379A CN103507379A CN201210215486.1A CN201210215486A CN103507379A CN 103507379 A CN103507379 A CN 103507379A CN 201210215486 A CN201210215486 A CN 201210215486A CN 103507379 A CN103507379 A CN 103507379A
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Abstract
The invention discloses a preparation method of double-sided leather. The preparation method comprises the following steps: uniformly stirring and filtering 5-10 parts of dimethylformamide and 0.5-2 parts of a color paste to obtain slurry; uniformly mixing and swelling 100-120 parts of dimethylformamide and 20-30 parts of wood flour, and then uniformly mixing with the slurry; adding 100 parts of polyurethane wet process resin to be uniformly mixed and defoamed; scraping the defoamed slurry on a glaze of suede, and then, solidifying, squeezing, water-washing and drying to obtain a wet base; uniformly mixing 100 parts of polyurethane dry process resin, 15-20 parts of dimethylformamide, 15-20 parts of butanone, 15-20 parts of methylbenzene, 0.5-1.0 parts of an assistant and 3-5 parts of a toner, scraping the mixed slurry on release paper, and then binding the wet base and separating from the release paper; uniformly mixing and filtering 100 parts of bonding glue, 20-30 parts of butanone, 10-14 parts of a bridging agent and 3-5 parts of an accelerant; and scraping the mixed and filtered slurry on the hair side of the suede, and binding a transfer membrane. According to the preparation method disclosed by the invention, the double-sided leather with a release paper pattern and a transfer membrane pattern is obtained.
Description
Technical field
The present invention relates to a kind of artificial leather preparation method, particularly a kind of two-sided leather preparation method.
Background technology
Traditional artificial leather is that base cloth layer, wet method bass layer and dry method overlay coating form, this kind of artificial leather only has a front, only on dry method overlay coating, be smooth front, decorative pattern can be set above, then the use field having at present need to be to the two-sided use of artificial leather, such as turnable two surface clothes etc., the artificial leather of this one side is just difficult to meet user demand.
Summary of the invention
In order to overcome above-mentioned defect, the invention provides a kind of two-sided leather preparation method, this two-sided leather preparation method technique is simple, and the product of producing is the two front side with different-effect and flower type feature.
The present invention for the technical scheme that solves its technical problem and adopt is: a kind of two-sided leather preparation method, and concrete steps are as follows:
Step 1: wet-mixing batching:
A. by 5～10kg dimethyl formamide and 0.5～2kg mill base high-speed stirred 80～100 minutes, then filter stand-by;
B. by 100～120kg dimethyl formamide and 20～30kg wood powder mix and blend 20～30 minutes, then abundant swelling 30～40 minutes, then adds the mixture having filtered in step a to stir stand-by;
C. 100kg polyurethane wet method resin is joined in the mixture that step b forms, stir 30～40 minutes, deaeration 40～50 minutes;
Step 2: wet method bass is produced:
The slurry that in step 1, deaeration has formed is coated with and is scraped on the light face through compiling suede nap (another side of this suede nap is hair side), immerse again mass percentage concentration and be in 18～22% the dimethyl formamide aqueous solution and solidify, then through at least one squezzing operation, then after washing and being dried, obtain a kind of wet method bass;
Step 3: dry mixed batching:
High-speed stirred after 100kg polyurethane dry method resin, 15～20kg dimethyl formamide, 15～20kg butanone, 15～20kg toluene, 0.5～1.0kg auxiliary agent and 3～5kg toner are mixed, mixing time 10～15 minutes is to stirring;
Step 4: dry method veneer:
The dry method slurry for preparing in step 3 is coated with to scrape in release liners, forms dry method veneer, is to be then adhered on dry method veneer under the condition of 90～110 ℃ in temperature by the wet method bass in step 2 by adhesive, separated through super-dry heel release liners;
Step 5: adhesive formulations:
High-speed stirred after 100kg adhesive glue, 20～30kg butanone, 10～14kg bridging agent, 3～5kg promoter are mixed, mixing time 10-15 minute, filters stand-by;
Step 6: shift:
On the hair side of step 4, be coated with and scrape the adhesive glue that step 5 prepares, then adhesive transfer film, after peeling off, can obtain a kind of two-sided leather that obtains.
As a further improvement on the present invention, dimethyl formamide and mill base high-speed stirred 90 minutes in described step a.
As a further improvement on the present invention, in described step a, use 240 order nylon wires to filter the mixed liquor of dimethyl formamide and mill base;
B. by 100～120kg dimethyl formamide and 20～30kg wood powder mix and blend 30 minutes, then abundant swelling 35 minutes, then adds the mixture having filtered in step a to stir stand-by;
C. 100kg polyurethane wet method resin is joined in the mixture that step b forms, stir 40 minutes, deaeration 45 minutes.
As a further improvement on the present invention, the speed of a motor vehicle of described step 2 is at 12-15 rice/min, and the speed of a motor vehicle of step 4 is at 20-25 rice/min.
As a further improvement on the present invention, in described step 4, use in the release liners with flower type, in step 6, use the transfer membrane with flower type, so just formed existing release paper flower type, had transfer membrane to spend the two-sided leather of type again.
The invention has the beneficial effects as follows: the present invention adopts through compiling suede nap and is made into wet method bass as base cloth, one side of its light face is pasted dry method veneer, one side of its hair side is pasted transfer membrane, form two front side structure, the release liners that has a colored type by use on dry method veneer has colored type, and its transfer membrane also has colored type, so just forms existing release paper flower type, has again the two-sided leather of transfer membrane flower type, it is applied widely, is mainly applicable to two-sided processing of wearing clothes.
The specific embodiment
Embodiment: a kind of two-sided leather preparation method, concrete steps are as follows:
Step 1: wet-mixing batching:
A. by 5～10kg dimethyl formamide and 0.5～2kg mill base high-speed stirred 80～100 minutes, then filter stand-by;
B. by 100～120kg dimethyl formamide and 20～30kg wood powder mix and blend 20～30 minutes, then abundant swelling 30～40 minutes, then adds the mixture having filtered in step a to stir stand-by;
C. 100kg polyurethane wet method resin is joined in the mixture that step b forms, stir 30～40 minutes, deaeration 40～50 minutes;
Step 2: wet method bass is produced:
The slurry that in step 1, deaeration has formed is coated with and is scraped on the light face through compiling suede nap (another side of this suede nap is hair side), immerse again mass percentage concentration and be in 18～22% the dimethyl formamide aqueous solution and solidify, then through at least one squezzing operation, then after washing and being dried, obtain a kind of wet method bass;
Step 3: dry mixed batching:
High-speed stirred after 100kg polyurethane dry method resin, 15～20kg dimethyl formamide, 15～20kg butanone, 15～20kg toluene, 0.5～1.0kg auxiliary agent and 3～5kg toner are mixed, mixing time 10～15 minutes is to stirring;
Step 4: dry method veneer:
The dry method slurry for preparing in step 3 is coated with to scrape in release liners, forms dry method veneer, is to be then adhered on dry method veneer under the condition of 90～110 ℃ in temperature by the wet method bass in step 2 by adhesive, separated through super-dry heel release liners;
Step 5: adhesive formulations:
High-speed stirred after 100kg adhesive glue, 20～30kg butanone, 10～14kg bridging agent, 3～5kg promoter are mixed, mixing time 10-15 minute, filters stand-by;
Step 6: shift:
On the hair side of step 4, be coated with and scrape the adhesive glue that step 5 prepares, then adhesive transfer film, after peeling off, can obtain a kind of two-sided leather that obtains.
In described step a, dimethyl formamide and mill base high-speed stirred are 90 minutes.
In described step a, use 240 order nylon wires to filter the mixed liquor of dimethyl formamide and mill base;
B. by 100～120kg dimethyl formamide and 20～30kg wood powder mix and blend 30 minutes, then abundant swelling 35 minutes, then adds the mixture having filtered in step a to stir stand-by;
C. 100kg polyurethane wet method resin is joined in the mixture that step b forms, stir 40 minutes, deaeration 45 minutes.
The speed of a motor vehicle of described step 2 is at 12-15 rice/min, and the speed of a motor vehicle of step 4 is at 20-25 rice/min.
In described step 4, use in the release liners with flower type, in step 6, use the transfer membrane with flower type, so just formed existing release paper flower type, had transfer membrane to spend the two-sided leather of type again.
Claims (5)
1. a two-sided leather preparation method, is characterized in that: concrete steps are as follows:
Step 1: wet-mixing batching:
A. by 5～10kg dimethyl formamide and 0.5～2kg mill base high-speed stirred 80～100 minutes, then filter stand-by;
B. by 100～120kg dimethyl formamide and 20～30kg wood powder mix and blend 20～30 minutes, then abundant swelling 30～40 minutes, then adds the mixture having filtered in step a to stir stand-by;
C. 100kg polyurethane wet method resin is joined in the mixture that step b forms, stir 30～40 minutes, deaeration 40～50 minutes;
Step 2: wet method bass is produced:
The slurry that in step 1, deaeration has formed is coated with and is scraped on the light face through volume suede nap, immerse again mass percentage concentration and be in 18～22% the dimethyl formamide aqueous solution and solidify, then through at least one squezzing operation, then after washing and being dried, obtain a kind of wet method bass;
Step 3: dry mixed batching:
High-speed stirred after 100kg polyurethane dry method resin, 15～20kg dimethyl formamide, 15～20kg butanone, 15～20kg toluene, 0.5～1.0kg auxiliary agent and 3～5kg toner are mixed, mixing time 10～15 minutes is to stirring;
Step 4: dry method veneer:
The dry method slurry for preparing in step 3 is coated with to scrape in release liners, forms dry method veneer, is to be then adhered on dry method veneer under the condition of 90～110 ℃ in temperature by the wet method bass in step 2 by adhesive, separated through super-dry heel release liners;
Step 5: adhesive formulations:
High-speed stirred after 100kg adhesive glue, 20～30kg butanone, 10～14kg bridging agent, 3～5kg promoter are mixed, mixing time 10-15 minute, filters stand-by;
Step 6: shift:
On the hair side of step 4, be coated with and scrape the adhesive glue that step 5 prepares, then adhesive transfer film, after peeling off, can obtain a kind of two-sided leather that obtains.
2. two-sided leather preparation method according to claim 1, is characterized in that: in described step a, dimethyl formamide and mill base high-speed stirred are 90 minutes.
3. two-sided leather preparation method according to claim 1, is characterized in that: in described step a, use 240 order nylon wires to filter the mixed liquor of dimethyl formamide and mill base;
B. by 100～120kg dimethyl formamide and 20～30kg wood powder mix and blend 30 minutes, then abundant swelling 35 minutes, then adds the mixture having filtered in step a to stir stand-by;
C. 100kg polyurethane wet method resin is joined in the mixture that step b forms, stir 40 minutes, deaeration 45 minutes.
4. two-sided leather preparation method according to claim 1, is characterized in that: the speed of a motor vehicle of described step 2 is at 12-15 rice/min, and the speed of a motor vehicle of step 4 is at 20-25 rice/min.
5. two-sided leather preparation method according to claim 1, is characterized in that: in described step 4, use in the release liners with flower type, use the transfer membrane with flower type in step 6.
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| CN201210215486.1A CN103507379B (en) | 2012-06-27 | 2012-06-27 | Two-sided leather preparation method |
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| CN201210215486.1A CN103507379B (en) | 2012-06-27 | 2012-06-27 | Two-sided leather preparation method |
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| CN103507379A true CN103507379A (en) | 2014-01-15 |
| CN103507379B CN103507379B (en) | 2015-12-02 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256600A (en) * | 2015-10-27 | 2016-01-20 | 四川大学 | Waterborne superfine fiber synthetic leather with two-sided lines and preparation method thereof |
| CN106758274A (en) * | 2016-12-22 | 2017-05-31 | 福建宝利特科技股份有限公司 | The preparation method of two-sided artificial leather and two-sided artificial leather |
| CN107326691A (en) * | 2017-08-22 | 2017-11-07 | 安徽安利材料科技股份有限公司 | Low ratio foamed embosses the preparation method of footwear wet method transfer membrane Synthetic Leather |
| CN107904967A (en) * | 2017-12-20 | 2018-04-13 | 昆山协孚新材料股份有限公司 | A kind of composite clothing leather foundation and its production method |
| CN108018724A (en) * | 2017-12-29 | 2018-05-11 | 昆山协孚新材料股份有限公司 | A kind of cosmetics auxiliary material leather and its production method |
| CN108978250A (en) * | 2018-08-20 | 2018-12-11 | 福建华夏合成革有限公司 | A kind of suede nap hydrolysis ultra-soft albumen leather and preparation method thereof |
| CN109098008A (en) * | 2018-08-20 | 2018-12-28 | 福建华夏合成革有限公司 | A kind of suede nap ultra-soft albumen leather |
| 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 |
| CN109267368A (en) * | 2018-10-18 | 2019-01-25 | 清远市齐力合成革有限公司 | A kind of production method of the two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance |
| CN109457498A (en) * | 2017-09-06 | 2019-03-12 | 南亚塑胶工业股份有限公司 | Method for manufacturing composite rubber material |
| CN111254233A (en) * | 2020-03-25 | 2020-06-09 | 焦作隆丰皮草企业有限公司 | Process for coating lining-free bag leather |
| CN113123143A (en) * | 2019-12-31 | 2021-07-16 | 苏州瑞高新材料有限公司 | High-peeling-force PU double-sided leather and preparation method thereof |
| IT202100021362A1 (en) | 2021-08-06 | 2023-02-06 | Poletto S R L | Method for obtaining leathers finished on both sides, with the use of a plastic film on the outer side of the leathers. |
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| CN101545212A (en) * | 2009-04-30 | 2009-09-30 | 江苏东泰聚合材料有限公司 | Hydrolysis resistance chemical leather and manufacturing method thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256600A (en) * | 2015-10-27 | 2016-01-20 | 四川大学 | Waterborne superfine fiber synthetic leather with two-sided lines and preparation method thereof |
| CN106758274A (en) * | 2016-12-22 | 2017-05-31 | 福建宝利特科技股份有限公司 | The preparation method of two-sided artificial leather and two-sided artificial leather |
| CN107326691A (en) * | 2017-08-22 | 2017-11-07 | 安徽安利材料科技股份有限公司 | Low ratio foamed embosses the preparation method of footwear wet method transfer membrane Synthetic Leather |
| CN109457498A (en) * | 2017-09-06 | 2019-03-12 | 南亚塑胶工业股份有限公司 | Method for manufacturing composite rubber material |
| CN107904967A (en) * | 2017-12-20 | 2018-04-13 | 昆山协孚新材料股份有限公司 | A kind of composite clothing leather foundation and its production method |
| CN108018724A (en) * | 2017-12-29 | 2018-05-11 | 昆山协孚新材料股份有限公司 | A kind of cosmetics auxiliary material leather and its production method |
| CN108978250A (en) * | 2018-08-20 | 2018-12-11 | 福建华夏合成革有限公司 | A kind of suede nap hydrolysis ultra-soft albumen leather and preparation method thereof |
| CN109098008A (en) * | 2018-08-20 | 2018-12-28 | 福建华夏合成革有限公司 | A kind of suede nap ultra-soft albumen leather |
| 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 |
| CN109267368A (en) * | 2018-10-18 | 2019-01-25 | 清远市齐力合成革有限公司 | A kind of production method of the two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance |
| CN113123143A (en) * | 2019-12-31 | 2021-07-16 | 苏州瑞高新材料有限公司 | High-peeling-force PU double-sided leather and preparation method thereof |
| CN113123143B (en) * | 2019-12-31 | 2023-04-28 | 苏州瑞高新材料有限公司 | High-peeling-force PU double-sided leather and preparation method thereof |
| CN111254233A (en) * | 2020-03-25 | 2020-06-09 | 焦作隆丰皮草企业有限公司 | Process for coating lining-free bag leather |
| CN111254233B (en) * | 2020-03-25 | 2022-02-01 | 焦作隆丰皮草企业有限公司 | Process for coating lining-free bag leather |
| IT202100021362A1 (en) | 2021-08-06 | 2023-02-06 | Poletto S R L | Method for obtaining leathers finished on both sides, with the use of a plastic film on the outer side of the leathers. |
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| CN103507379B (en) | 2015-12-02 |
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Effective date of registration: 20160412 Address after: Suzhou City, Jiangsu province 215300 Yushan town Kunshan City Yuhe Road No. 111 Patentee after: Kunshan Fu Xin new material Limited by Share Ltd Address before: Suzhou City, Jiangsu province 215300 Yushan town Kunshan City Yuhe Road No. 111 Patentee before: Kunshan Xie Run leatheret Co., Ltd |