CN102286885B - Production method of PU (polyurethane) peeling leather fabric - Google Patents
Production method of PU (polyurethane) peeling leather fabric Download PDFInfo
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- CN102286885B CN102286885B CN 201110149122 CN201110149122A CN102286885B CN 102286885 B CN102286885 B CN 102286885B CN 201110149122 CN201110149122 CN 201110149122 CN 201110149122 A CN201110149122 A CN 201110149122A CN 102286885 B CN102286885 B CN 102286885B
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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 manufacture the method for fabric, relate in particular to the production method that PU peels off leather shell material.
Background technology
People are to starting the attention gradually to environmental protection, and green is the synonym of environmental protection, mean development and sustainable existence, are also the synonyms of future society, are to wish, are also targets.Just because of this, in the today of advocating environmental protection and energy saving, people also start 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 PU peels off leather shell material mainly is divided into: two kinds of the direct rubbing method of dry type and wet type rubbing methods.Although it is simple that the wet type rubbing method is compared in the direct rubbing method manufacturing of dry type, becomes the product manufacturing cost also relatively lower, the PU of its production peels off the quality of leather shell material as the product of moisture-penetrable ventilated property not as the wet type rubbing method., except step is comparatively miscellaneous, also mainly there is following weak point in existing wet type rubbing method technique: 1. base fabric does not first pass through and reasonably selects, so that the product quality of its production is not good.2. the material mixture ratio of the polyurethane slurry of the resin material of substrate layer and precoat is reasonable not, so that the product quality of its production (being mainly weight, pliability, ventilative, saturating wet, the surperficial not characteristic index of Peng Run) is not good.3. the treatment process Shortcomings part that water inlet is solidified and washed, thus the product quality of its production is not good.
Summary of the invention
Therefore, the present invention is directed to the weak point that existing PU peels off 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, thoroughly 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 prepared evenly is coated on above-mentioned base fabric, then intake chamber solidifies, and by extruding, washes, and carries out shaping and drying, forms base material;
(3), the polyurethane slurry prepared evenly is coated to and applies on release liners, then when its 8 one-tenths dryings, conform on above-mentioned base material, after again drying the polyurethane slurry on release liners fully, then from release the precoat of separation polyurethane.
Further, to select the drying performance 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 described step ().
Preferred, it is that 3 grades, separation property face are the base fabrics of 0.1 kg/cm that the base fabric in described step () is selected the drying performance.
Further, the resin material in described step (two) is formulated by following component and weight portion:
Polyurethane: 80 parts-100 parts,
Dimethyl formamide: 50 parts-60 parts,
Dehydration pears alcohol oleate: 3 parts-4 parts,
Dyestuff cream: 8 parts-10 parts,
The hot sodium sulfonate of the different ester of butene dioic acid two: 1.5 parts-2 parts.
Preferably, the resin material of stating in step (two) is formulated by following component and weight portion:
Polyurethane: 100 parts,
Dimethyl formamide: 60 parts,
Dehydration pears alcohol oleate: 4 parts,
Dyestuff cream: 10 parts,
The hot sodium sulfonate of the different ester of butene dioic acid two: 1.5 parts.
Intake chamber in described step (two) solidifies to process and comprises that the coagulating basin that enters successively the pre-coagulating basin that holding has clear water and enter the dimethyl formamide (DMF) that holding has concentration to be 10%-14% is solidified.Further, the immersion angle degree 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 coagulating basin is 3kg.The time of the extruding washing in described step (two) will remain on 25 minutes-30 minutes
.
The temperature of the shaping and drying in described step (two) is 155 ℃-175 ℃.
Further, the polyurethane slurry in described step (three) is formulated by following component and weight portion:
Hydrolysis resistant polyurethane: 80 parts-100 parts,
Dimethyl formamide: 15 parts-20 parts,
Butanone: 50 parts-60 parts,
Dyestuff cream: 5 parts-7 parts.
Preferably, the polyurethane slurry in described step (three) is formulated by following component and weight portion:
Hydrolysis resistant polyurethane: 100 parts,
Dimethyl formamide: 20 parts,
Butanone: 50 parts,
Dyestuff cream: 5 parts.
The temperature of drying in described step (three) is 125 ℃-140 ℃, preferably 135 ℃.
Further, in described step (two) and step (three), drying and processing is to be placed in baking oven to be dried.In described step (two) and step (three), coating processing is to apply to be spaced in intervals evenly by scraper.
Further, after described step (three), also increase: step (four), by the PU of shaping peel off leather shell material through after arrange and enter the deep processing processing.
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.There is following advantage:
1. base fabric, through reasonably selecting, is selected drying performance and separation property face to reach necessarily required base fabric and is manufactured, and the product quality that can make the inventive method produce is better.
2. the material mixture ratio of the polyurethane slurry of the resin material of substrate layer and precoat is through optimal design, and the product quality that can make the inventive method produce is better.
3. the treatment process process optimization improvement that water inlet is solidified and washed, the product quality that can make the inventive method produce is better.
4. peeling off by PU of the present invention PU that the production method of leather shell material manufactures peels off leather shell material and has: can freely paint, the physical indexs such as COLOR FASTNESS, day illumination, peel strength, tearing strength can arbitrarily be adjusted with customer requirement, and free from extraneous odour, lightweight, be difficult for sclerosis after chance water, ventilative, wet, perspire thoroughly, antibiotic, mildew-resistant, anti-combustion, freeze proof, surface not Peng Run meets environmental requirement, light weight, can make multiple processing laminating coated split leather.
The specific embodiment
Now in conjunction with the specific embodiment, the present invention is further described.
Embodiment 1:
The PU of the present embodiment peels off the production method of leather shell material, comprises step:
(1), choose base fabric, batch stand-by.Selecting the drying performance is that 2.5 grades, separation property face are the base fabrics of 0.13 kg/cm.
(2), the resin material prepared evenly is coated on above-mentioned base fabric, then intake chamber solidifies, and by extruding, washes, and carries out shaping and drying, forms base material.Intake chamber solidifies to process and comprises that the coagulating basin that enters successively the pre-coagulating basin that holding has clear water and enter the dimethyl formamide (DMF) that holding has concentration to be 12% is solidified.The immersion angle degree that intake chamber solidifies processing is 48 °, strictly controls the water angle well between 48 °, and the immersion angle degree 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 coagulating basin is 3kg.The time of extruding washing will remain on 28 minutes
.the temperature of shaping and drying is 175 ℃.
(3), the polyurethane slurry prepared evenly is coated to and applies on release liners, then when its 8 one-tenths dryings, conform on above-mentioned base material, after again drying the polyurethane slurry on release liners fully, then from release the precoat of separation polyurethane.The temperature of drying is 130 ℃.
Embodiment 2:
The PU of the present embodiment peels off the production method of leather shell material, comprises step:
(1), choose base fabric, batch stand-by.Selecting the drying performance is that 3.2 grades, separation property face are the base fabrics of 0.07 kg/cm.
(2), the resin material prepared evenly is coated on above-mentioned base fabric, then intake chamber solidifies, and by extruding, washes, and carries out shaping and drying, forms base material.Intake chamber solidifies to process and comprises that the coagulating basin that enters successively the pre-coagulating basin that holding has clear water and enter the dimethyl formamide (DMF) that holding has concentration to be 12% is solidified.The immersion angle degree that intake chamber solidifies processing is 40 °, the water angle strictly control well between 40 °-50 °, the immersion angle degree 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 coagulating basin is 3kg.The time of extruding washing will remain on 26 minutes
.the temperature of shaping and drying is 155 ℃.
(3), the polyurethane slurry prepared evenly is coated to and applies on release liners, then when its 8 one-tenths dryings, conform on above-mentioned base material, after again drying the polyurethane slurry on release liners fully, then from release the precoat of separation polyurethane.The temperature of drying is 125 ℃.
Embodiment 3:
The PU of the present embodiment peels off the production method of leather shell material, comprises step:
(1), choose base fabric, batch stand-by.Selecting the drying performance is that 3.5 grades, separation property face are the base fabrics of 0.10 kg/cm.
(2), the resin material prepared evenly is coated on above-mentioned base fabric, then intake chamber solidifies, and by extruding, washes, and carries out shaping and drying, forms base material.Intake chamber solidifies to process and comprises that the coagulating basin that enters successively the pre-coagulating basin that holding has clear water and enter the dimethyl formamide (DMF) that holding has concentration to be 10% is solidified.The immersion angle degree that intake chamber solidifies processing is 50 °, the water angle strictly control well between 40 °-50 °, the immersion angle degree 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 coagulating basin is 3kg.The time of extruding washing will remain on 25 minutes
.the temperature of shaping and drying is 170 ℃.
(3), the polyurethane slurry prepared evenly is coated to and applies on release liners, then when its 8 one-tenths dryings, conform on above-mentioned base material, after again drying the polyurethane slurry on release liners fully, then from release the precoat of separation polyurethane.The temperature of drying is 140 ℃.
Embodiment 4:
The PU of the present embodiment peels off the production method of leather shell material, comprises step:
(1), choose base fabric, batch stand-by.Selecting the drying performance is that 3 grades, separation property face are the base fabrics of 0.10 kg/cm.
(2), the resin material prepared evenly is coated on above-mentioned base fabric, then intake chamber solidifies, and by extruding, washes, and carries out shaping and drying, forms base material.Intake chamber solidifies to process and comprises that the coagulating basin that enters successively the pre-coagulating basin that holding has clear water and enter the dimethyl formamide (DMF) that holding has concentration to be 12% is solidified.The immersion angle degree that intake chamber solidifies processing is 45 °, the water angle strictly control well between 40 °-50 °, the immersion angle degree 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 coagulating basin is 3kg.The time of extruding washing will remain on 30 minutes
.the temperature of shaping and drying is 165 ℃.
(3), the polyurethane slurry prepared evenly is coated to and applies on release liners, then when its 8 one-tenths dryings, conform on above-mentioned base material, after again drying the polyurethane slurry on release liners fully, then from release the precoat of separation polyurethane.The temperature of drying is 135 ℃.
Resin material in the various embodiments described above can adopt component and the weight portion of the several sequence number groups shown in following form formulated:
 |
1 | 2 | 3 | 4 |
| Hydrolysis resistant polyurethane | 95 parts | 80 parts | 90 parts | 100 minutes |
| Dimethyl formamide | 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 different ester of butene dioic acid two | 1.6 part | 1.8 part | 2 parts | 1.5 part |
Polyurethane slurry in the various embodiments described above can adopt component and the weight portion of the several sequence number groups shown in following form formulated:
| 1 | 2 | 3 | 4 | |
| Hydrolysis resistant polyurethane | 90 parts | 80 parts | 85 parts | 100 minutes |
| Dimethyl formamide | 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 |
In step in the various embodiments described above (two) and step (three), drying and processing is to be placed in baking oven to be dried; Coating processing is to apply to be spaced in intervals evenly by scraper.
After the step of the various embodiments described above (three), also increase: step (four), by the PU of shaping peel off leather shell material through after arrange and enter the deep processing processing, as dyeing, stamp, pad pasting, embossing Zhu etc.
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 of fabric 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 bar effect, and PU of the present invention peels off leather shell material and meet national requirements for environmental protection, degradable, be 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; within not breaking away from the spirit and scope of the present invention that appended claims limits; can make a variety of changes the present invention in the form and details, be protection scope of the present invention.
Claims (11)
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 prepared evenly is coated on above-mentioned base fabric, then intake chamber solidifies, and by extruding, washes, and carries out shaping and drying, forms base material, and resin material is formulated by following component and weight portion:
Polyurethane: 80 parts-100 parts,
Dimethyl formamide: 50 parts-60 parts,
Dehydration pears alcohol oleate: 3 parts-4 parts,
Dyestuff cream: 8 parts-10 parts,
The hot sodium sulfonate of the different ester of butene dioic acid two: 1.5 parts-2 parts;
(3), the polyurethane slurry prepared evenly is coated to and applies on release liners, then when its 8 one-tenth dryings, conform on above-mentioned base material, after again drying the polyurethane slurry on release liners fully, the precoat of separation polyurethane from release again, polyurethane slurry is formulated by following component and weight portion:
Hydrolysis resistant polyurethane: 80 parts-100 parts,
Dimethyl formamide: 15 parts-20 parts,
Butanone: 50 parts-60 parts,
Dyestuff cream: 5 parts-7 parts.
2. PU according to claim 1 peels off the production method of leather shell material, it is characterized in that: it is 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 described step () is selected the drying performance.
3. PU according to claim 2 peels off the production method of leather shell material, it is characterized in that: it is that 3 grades, separation property face are the base fabrics of 0.1 kg/cm that the base fabric in described step () is selected the drying performance.
4. PU according to claim 1 peels off the production method of leather shell material, it is characterized in that: the intake chamber in described step (two) solidifies to process and comprises that the coagulating basin that enters successively the pre-coagulating basin that holding has clear water and enter the dimethyl formamide (DMF) that holding has concentration to be 10%-14% is solidified.
5. PU according to claim 4 peels off the production method of leather shell material, it is characterized in that: the immersion angle degree 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 coagulating basin is 3kg.
6. 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 described step (two) will remain on 25 minutes-30 minutes.
7. 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 described step (two) is 155 ℃-175 ℃.
8. PU according to claim 1 peels off the production method of leather shell material, it is characterized in that: the temperature of drying in described step (three) is 125 ℃-140 ℃.
9. PU according to claim 1 peels off the production method of leather shell material, it is characterized in that: in described step (two) and step (three), drying and processing is to be placed in baking oven to be dried.
10. PU according to claim 1 peels off the production method of leather shell material, it is characterized in that: in described step (two) and step (three), coating processing is to apply to be spaced in intervals evenly by scraper.
11. PU according to claim 1 peels off the production method of leather shell material, it is characterized in that: also increase after described step (three):
Step (four), by the PU of shaping peel off leather shell material through after arrange and to enter deep processing and process.
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 |
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| 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 CN102286885A (en) | 2011-12-21 |
| CN102286885B true 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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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN112959579B (en) * | 2021-02-02 | 2022-12-16 | 福建省尤溪县益康制革有限公司 | Lettering film stripping skin and preparation method thereof |
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| 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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2011
- 2011-06-03 CN CN 201110149122 patent/CN102286885B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN1966851A (en) * | 2006-10-27 | 2007-05-23 | 海宁杰玛高科涂层织物有限公司 | Method for preparing sofa leather with strong wear resistant property and flame retardant property |
| 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 |
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