CN102286885A - Production method of PU (polyurethane) peeling leather fabric - Google Patents
Production method of PU (polyurethane) peeling leather fabric Download PDFInfo
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- CN102286885A CN102286885A CN 201110149122 CN201110149122A CN102286885A CN 102286885 A CN102286885 A CN 102286885A CN 201110149122 CN201110149122 CN 201110149122 CN 201110149122 A CN201110149122 A CN 201110149122A CN 102286885 A CN102286885 A CN 102286885A
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Abstract
The invention relates to a method for industrially producing a fabric, in particular to a production method of a PU (polyurethane) peeling leather fabric. The production method comprises the following steps: (1) selecting the base fabric and reeling the base fabric for later use; (2) uniformly coating the prepared resin material on the base fabric, then solidifying the resin material in a water tank and carrying out setting and drying through extruding and washing to form the substrate; and (3) uniformly coating the prepared polyurethane pulp on coated release paper, then laminating the release paper on the substrate when the release paper is 80% dry and separating the polyurethane fabric layer from the release paper after absolutely drying the polyurethane pulp on the release paper again. The quality of the PU peeling leather fabric produced by the method is better than that of the PU peeling leather fabrics produced by the existing production methods and the PU peeling leather fabric can serve as various processed and laminated underlayer oxhide.
Description
Technical field
The present invention relates to industrial production and make the method for lining, relate in particular to the production method that PU peels off leather shell material.
Background technology
People are to beginning the attention gradually to environmental protection, and green is the synonym of environmental protection, mean development and sustainable existence, also are the synonyms of following society, are to wish, also are targets.Just because of this, in the today of advocating environmental protection and energy saving, people also begin to develop PU(polyurethane) replace animal's leather from leather shell material, to avoid to the injury of wild animal with to the destruction of natural environment.
The production method that existing P U peels off leather shell material mainly is divided into: two kinds of direct rubbing method of dry type and wet type rubbing methods.Though it is simple that the wet type rubbing method is compared in the direct rubbing method manufacturing of dry type, becomes to produce to cause this also lower relatively, the PU of its production peels off the quality of leather shell material such as the product that moisture-penetrable ventilated property is not so good as the wet type rubbing method.Also mainly there is following weak point in existing wet type rubbing method technology except that step is comparatively miscellaneous: 1. base fabric does not pass through earlier and reasonably selects for use, so that the product quality of its production is not good.2. the material mixture ratio of the polyamine fat slurry of the resin material of substrate layer and precoat is reasonable inadequately, so that the product quality of its production (mainly being weight, pliability, ventilative, saturating wet, the surperficial not characteristic index of Peng Run) is not good.3. there is weak point in the treatment process that solidifies and wash of intaking, so that the product quality of its production is not good.
Summary of the invention
Therefore, the present invention is directed to existing P U and peel off the weak point of the production method of leather shell material, the production method that a kind of improved PU peels off leather shell material is proposed, the product quality of its production, as weight, pliability, ventilative, saturating wet, surface not Peng Run etc. characteristic index all better.
Technical scheme of the present invention is:
PU peels off the production method of leather shell material, comprises step:
(1), choose base fabric, batch stand-by;
(2), the resin material for preparing evenly is coated on the above-mentioned base fabric, intake chamber solidifies then, by the extruding washing, carries out shaping and drying, forms base material;
(3), the polyamine fat slurry for preparing evenly be coated to apply on the release liners, treat that then its 8 one-tenths conform on the above-mentioned base material when dry, dry the polyamine fat slurry on the release liners once more fully after, again from the release precoat that separates polyamine fat.
Further, to select the ripple water-based for use can be that 2.5 grades-3.5 grades, separation property face are the base fabrics of 0.07 kg/cm-0.13 kg/cm to the base fabric in the described step ().
Preferred, it can be that 3 grades, separation property face are the base fabrics of 0.1 kg/cm that the base fabric in the described step () is selected the ripple water-based for use.
Further, the resin material in the described step (two) is formulated by following component and weight portion:
Polyurethane: 80 parts-100 parts,
Two basic acid amides: 50 parts-60 parts,
Dehydration pears alcohol oleate: 3 parts-4 parts,
Dyestuff cream: 8 parts-10 parts,
The hot sodium sulfonate of the rare diacid two different esters of fourth: 1.5 parts-2 parts.
Preferably, the resin material of stating in the step (two) is formulated by following component and weight portion:
Polyurethane: 100 parts,
Two basic acid amides: 60 parts,
Dehydration pears alcohol oleate: 4 parts,
Dyestuff cream: 10 parts,
The hot sodium sulfonate of the rare diacid two different esters of fourth: 1.5 parts.
Intake chamber in the described step (two) solidifies to handle and comprises and enter the pre-coagulating basin that holding has clear water successively and enter holding that solubility is arranged is that the coagulating basin of the dimethyl formamide (DMF) of 10%-14% solidifies.Further, the entry angle that described intake chamber solidifies processing is 40 °-50 °, and the time of solidifying will remain on 12 minutes-15 minutes, and the tension force in pre-coagulating basin and the coagulating basin is 3kg.The time of the extruding washing in the described step (two) will remain on 25 minutes-30 minutes
The temperature of the shaping and drying in the described step (two) is 155 ℃-175 ℃.
Further, the polyamine fat slurry in the described step (three) is formulated by following component and weight portion:
The hydrolysis Polyurethane: 80 parts-100 parts,
Dimethyl acyl methylamine: 15 parts-20 parts,
Butanone: 50 parts-60 parts,
Dyestuff cream: 5 parts-7 parts.
Preferably, the polyamine fat slurry in the described step (three) is formulated by following component and weight portion:
The hydrolysis Polyurethane: 100 parts,
Dimethyl acyl methylamine: 20 parts,
Butanone: 50 parts,
Dyestuff cream: 5 parts.
The temperature of oven dry is 125 ℃-140 ℃ in the described step (three), preferably 135 ℃.
Further, the oven dry processing is to place in the baking oven to dry in described step (two) and the step (three).Coating processing is evenly to apply with interval one determining deviation by scraper in described step (two) and the step (three).
Further, also increase after the described step (three): step (four), the PU that is shaped is peeled off leather shell material enter the deep processing processing through the back arrangement.
The present invention adopts as above technical scheme, can manufacture out the better PU of quality parameter and peel off the leather shell material product.Have following advantage:
1. base fabric is selected for use ripple water-based energy and separation property face to reach necessarily required base fabric and is manufactured through reasonably selecting for use, and the product quality that the inventive method is produced is better.
2. the material mixture ratio of the polyamine fat slurry of the resin material of substrate layer and precoat is through optimal design, and the product quality that the inventive method is produced is better.
3. the treatment process that solidifies and wash of intaking improves through optimizing, and the product quality that the inventive method is produced is better.
4. peeling off PU that the production method of leather shell material manufactures by PU of the present invention peels off leather shell material and has: can freely paint, physical indexs such as COLOR FASTNESS, day illumination, peel strength, tearing strength can arbitrarily be adjusted with customer requirement, and free from extraneous odour, in light weight, be difficult for sclerosis behind the chance water, ventilative, saturating wet, perspire, antibiotic, mildew-resistant, anti-combustion, freeze proof, the surface profit compliance with environmental protection requirements of not splashing, light weight can be made multiple processing applying coated split leather.
The specific embodiment
Now the present invention is further described in conjunction with the specific embodiment.
Embodiment 1:
The PU of present embodiment peels off the production method of leather shell material, comprises step:
(1), choose base fabric, batch stand-by.Selecting the ripple water-based for use can be that 2.5 grades, separation property face are the base fabrics of 0.13 kg/cm.
(2), the resin material for preparing evenly is coated on the above-mentioned base fabric, intake chamber solidifies then, by the extruding washing, carries out shaping and drying, forms base material.Intake chamber solidifies to handle and comprises and enter the pre-coagulating basin that holding has clear water successively and enter holding that solubility is arranged is that the coagulating basin of 12% dimethyl formamide (DMF) solidifies.The entry angle that intake chamber solidifies processing is 48 °, and strictness is controlled the water angle well between 48 °, and the entry angle can finally have influence on the planarization that PU peels off the leather shell material surface, and the time of solidifying will remain on 12 minutes, and the tension force in pre-coagulating basin and the coagulating basin is 3kg.The time of extruding washing will remain on 28 minutes
The temperature of shaping and drying is 175 ℃.
(3), the polyamine fat slurry for preparing evenly be coated to apply on the release liners, treat that then its 8 one-tenths conform on the above-mentioned base material when dry, dry the polyamine fat slurry on the release liners once more fully after, again from the release precoat that separates polyamine fat.The temperature of oven dry is 130 ℃.
Embodiment 2:
The PU of present embodiment peels off the production method of leather shell material, comprises step:
(1), choose base fabric, batch stand-by.Selecting the ripple water-based for use can be that 3.2 grades, separation property face are the base fabrics of 0.07 kg/cm.
(2), the resin material for preparing evenly is coated on the above-mentioned base fabric, intake chamber solidifies then, by the extruding washing, carries out shaping and drying, forms base material.Intake chamber solidifies to handle and comprises and enter the pre-coagulating basin that holding has clear water successively and enter holding that solubility is arranged is that the coagulating basin of 12% dimethyl formamide (DMF) solidifies.The entry angle that intake chamber solidifies processing is 40 °, strictness is controlled the water angle well between 40 °-50 °, the entry angle can finally have influence on the planarization that PU peels off the leather shell material surface, and the time of solidifying will remain on 12 minutes, and the tension force in pre-coagulating basin and the coagulating basin is 3kg.The time of extruding washing will remain on 26 minutes
The temperature of shaping and drying is 155 ℃.
(3), the polyamine fat slurry for preparing evenly be coated to apply on the release liners, treat that then its 8 one-tenths conform on the above-mentioned base material when dry, dry the polyamine fat slurry on the release liners once more fully after, again from the release precoat that separates polyamine fat.The temperature of oven dry is 125 ℃.
Embodiment 3:
The PU of present embodiment peels off the production method of leather shell material, comprises step:
(1), choose base fabric, batch stand-by.Selecting the ripple water-based for use can be that 3.5 grades, separation property face are the base fabrics of 0.10 kg/cm.
(2), the resin material for preparing evenly is coated on the above-mentioned base fabric, intake chamber solidifies then, by the extruding washing, carries out shaping and drying, forms base material.Intake chamber solidifies to handle and comprises and enter the pre-coagulating basin that holding has clear water successively and enter holding that solubility is arranged is that the coagulating basin of 10% dimethyl formamide (DMF) solidifies.The entry angle that intake chamber solidifies processing is 50 °, strictness is controlled the water angle well between 40 °-50 °, the entry angle can finally have influence on the planarization that PU peels off the leather shell material surface, and the time of solidifying will remain on 13 minutes, and the tension force in pre-coagulating basin and the coagulating basin is 3kg.The time of extruding washing will remain on 25 minutes
The temperature of shaping and drying is 170 ℃.
(3), the polyamine fat slurry for preparing evenly be coated to apply on the release liners, treat that then its 8 one-tenths conform on the above-mentioned base material when dry, dry the polyamine fat slurry on the release liners once more fully after, again from the release precoat that separates polyamine fat.The temperature of oven dry is 140 ℃.
Embodiment 4:
The PU of present embodiment peels off the production method of leather shell material, comprises step:
(1), choose base fabric, batch stand-by.Selecting the ripple water-based for use can be that 3 grades, separation property face are the base fabrics of 0.10 kg/cm.
(2), the resin material for preparing evenly is coated on the above-mentioned base fabric, intake chamber solidifies then, by the extruding washing, carries out shaping and drying, forms base material.Intake chamber solidifies to handle and comprises and enter the pre-coagulating basin that holding has clear water successively and enter holding that solubility is arranged is that the coagulating basin of 12% dimethyl formamide (DMF) solidifies.The entry angle that intake chamber solidifies processing is 45 °, strictness is controlled the water angle well between 40 °-50 °, the entry angle can finally have influence on the planarization that PU peels off the leather shell material surface, and the time of solidifying will remain on 15 minutes, and the tension force in pre-coagulating basin and the coagulating basin is 3kg.The time of extruding washing will remain on 30 minutes
The temperature of shaping and drying is 165 ℃.
(3), the polyamine fat slurry for preparing evenly be coated to apply on the release liners, treat that then its 8 one-tenths conform on the above-mentioned base material when dry, dry the polyamine fat slurry on the release liners once more fully after, again from the release precoat that separates polyamine fat.The temperature of oven dry is 135 ℃.
Resin material in the various embodiments described above can adopt the component and the weight portion of the several sequence number groups shown in the following form formulated:
 |
1 | 2 | 3 | 4 |
| The hydrolysis Polyurethane | 95 parts | 80 parts | 90 parts | 100 minutes |
| Dimethyl acyl methylamine | 50 parts | 55 parts | 58 parts | 60 parts |
| Dehydration pears alcohol oleate | 3 parts | 3.5 part | 4 parts | 4 parts |
| Dyestuff cream | 8.5 part | 8 parts | 9 parts | 10 parts |
| The hot sodium sulfonate of the rare diacid two different esters of fourth | 1.6 part | 1.8 part | 2 parts | 1.5 part |
Polyamine fat slurry in the various embodiments described above can adopt the component and the weight portion of the several sequence number groups shown in the following form formulated:
 |
1 | 2 | 3 | 4 |
| The hydrolysis Polyurethane | 90 parts | 80 parts | 85 parts | 100 minutes |
| Dimethyl acyl methylamine | 15 parts | 18 parts | 16 parts | 20 parts |
| Butanone | 55 parts | 58 parts | 60 parts | 50 parts |
| Dyestuff cream | 6 parts | 5.5 part | 7 parts | 5 parts |
The oven dry processing is to place in the baking oven to dry in step in the various embodiments described above (two) and the step (three); Coating processing is evenly to apply with interval one determining deviation by scraper.
Also increase after the step of the various embodiments described above (three): step (four), the PU that is shaped is peeled off leather shell material enter the deep processing processing, as dyeing, stamp, pad pasting, embossing Zhu etc. through the back arrangement.
The PU that PU of the present invention peels off the production method manufacturing of leather shell material peels off the leather shell material of peeling off that leather shell material can be used for compound corium double-layer fur, split leather, this kind lining is after compound with corium double-layer fur, split leather, make it form the effect of first layer lether leather, and conveniently do the post processing of leather, can make crazy horse, fission, ox crust effect, and PU of the present invention peels off leather shell material and meets national requirements for environmental protection, and degradable is a kind of green coverstock material.
Although specifically show and introduced the present invention in conjunction with preferred embodiment; but the those skilled in the art should be understood that; in the spirit and scope of the present invention that do not break away from appended claims and limited; can make various variations to the present invention in the form and details, be protection scope of the present invention.
Claims (13)
1.PU peel off the production method of leather shell material, it is characterized in that, comprise step:
(1), choose base fabric, batch stand-by;
(2), the resin material for preparing evenly is coated on the above-mentioned base fabric, intake chamber solidifies then, by the extruding washing, carries out shaping and drying, forms base material;
(3), the polyamine fat slurry for preparing evenly be coated to apply on the release liners, treat that then its 8 one-tenths conform on the above-mentioned base material when dry, dry the polyamine fat slurry on the release liners once more fully after, again from the release precoat that separates polyamine fat.
2. PU according to claim 1 peels off the production method of leather shell material, it is characterized in that: it can be that 2.5 grades-3.5 grades, separation property face are the base fabrics of 0.07 kg/cm-0.13 kg/cm that the base fabric in the described step () is selected the ripple water-based for use.
3. PU according to claim 2 peels off the production method of leather shell material, it is characterized in that: it can be that 3 grades, separation property face are the base fabrics of 0.1 kg/cm that the base fabric in the described step () is selected the ripple water-based for use.
4. PU according to claim 1 peels off the production method of leather shell material, it is characterized in that: the resin material in the described step (two) is formulated by following component and weight portion:
Polyurethane: 80 parts-100 parts,
Two basic acid amides: 50 parts-60 parts,
Dehydration pears alcohol oleate: 3 parts-4 parts,
Dyestuff cream: 8 parts-10 parts,
The hot sodium sulfonate of the rare diacid two different esters of fourth: 1.5 parts-2 parts.
5. PU according to claim 1 peels off the production method of leather shell material, it is characterized in that: the intake chamber in the described step (two) solidifies to handle and comprises and enter the pre-coagulating basin that holding has clear water successively and enter holding that solubility is arranged is that the coagulating basin of the dimethyl formamide (DMF) of 10%-14% solidifies.
6. PU according to claim 5 peels off the production method of leather shell material, it is characterized in that: the entry angle that described intake chamber solidifies processing is 40 °-50 °, and the time of solidifying will remain on 12 minutes-15 minutes, and the tension force in pre-coagulating basin and the coagulating basin is 3kg.
7. PU according to claim 1 peels off the production method of leather shell material, it is characterized in that: the time of the extruding washing in the described step (two) will remain on 25 minutes-30 minutes.
8. PU according to claim 1 peels off the production method of leather shell material, it is characterized in that: the temperature of the shaping and drying in the described step (two) is 155 ℃-175 ℃.
9. PU according to claim 1 peels off the production method of leather shell material, it is characterized in that: the polyamine fat slurry in the described step (three) is formulated by following component and weight portion:
The hydrolysis Polyurethane: 80 parts-100 parts,
Dimethyl acyl methylamine: 15 parts-20 parts,
Butanone: 50 parts-60 parts,
Dyestuff cream: 5 parts-7 parts.
10. PU according to claim 1 peels off the production method of leather shell material, it is characterized in that: the temperature of oven dry is 125 ℃-140 ℃ in the described step (three).
11. PU according to claim 1 peels off the production method of leather shell material, it is characterized in that: the oven dry processing is to place in the baking oven to dry in described step (two) and the step (three).
12. PU according to claim 1 peels off the production method of leather shell material, it is characterized in that: coating processing is evenly to apply with interval one determining deviation by scraper in described step (two) and the step (three).
13. PU according to claim 1 peels off the production method of leather shell material, it is characterized in that: also increase after the described step (three):
Step (four), the PU that is shaped is peeled off leather shell material enter the deep processing processing through the back arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110149122 CN102286885B (en) | 2011-06-03 | 2011-06-03 | Production method of PU (polyurethane) peeling leather fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110149122 CN102286885B (en) | 2011-06-03 | 2011-06-03 | Production method of PU (polyurethane) peeling leather fabric |
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| Publication Number | Publication Date |
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| CN102286885A true CN102286885A (en) | 2011-12-21 |
| CN102286885B CN102286885B (en) | 2013-05-08 |
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| CN 201110149122 Expired - Fee Related CN102286885B (en) | 2011-06-03 | 2011-06-03 | Production method of PU (polyurethane) peeling leather fabric |
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Cited By (3)
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| CN102825882A (en) * | 2012-08-23 | 2012-12-19 | 峰安皮业股份有限公司 | Method for preparing aqueous PU vamp leather |
| CN112959579A (en) * | 2021-02-02 | 2021-06-15 | 福建省尤溪县益康制革有限公司 | Lettering film stripping skin and preparation method thereof |
| CN112961492A (en) * | 2021-02-02 | 2021-06-15 | 福建省尤溪县益康制革有限公司 | Non-cloth leather for polishing and preparation method thereof |
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| CN101469515A (en) * | 2007-12-25 | 2009-07-01 | 宁波布利杰合成革有限公司 | Flame-retardant leather and method of producing the same |
| CN101498106A (en) * | 2009-02-14 | 2009-08-05 | 烟台万华超纤股份有限公司 | Mirror face synthetic leather and production method thereof |
| CN101545211A (en) * | 2009-03-27 | 2009-09-30 | 福建兰峰制革有限公司 | Method for producing emulational leather |
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| CN1554822A (en) * | 2003-12-26 | 2004-12-15 | 长沙中园科技有限公司 | Water-proof, cold-proof and moisture permeable polyurethane coating cloth and its producing process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102825882A (en) * | 2012-08-23 | 2012-12-19 | 峰安皮业股份有限公司 | Method for preparing aqueous PU vamp leather |
| CN112959579A (en) * | 2021-02-02 | 2021-06-15 | 福建省尤溪县益康制革有限公司 | Lettering film stripping skin and preparation method thereof |
| CN112961492A (en) * | 2021-02-02 | 2021-06-15 | 福建省尤溪县益康制革有限公司 | Non-cloth leather for polishing and preparation method thereof |
| CN112961492B (en) * | 2021-02-02 | 2022-06-28 | 福建省尤溪县益康制革有限公司 | Non-cloth leather for polishing and preparation method thereof |
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