CN109881495A - Aqueous PU surface layer, aqueous PU cow split leather and preparation method thereof - Google Patents
Aqueous PU surface layer, aqueous PU cow split leather and preparation method thereof Download PDFInfo
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- CN109881495A CN109881495A CN201910285939.XA CN201910285939A CN109881495A CN 109881495 A CN109881495 A CN 109881495A CN 201910285939 A CN201910285939 A CN 201910285939A CN 109881495 A CN109881495 A CN 109881495A
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Abstract
The present invention relates to a kind of aqueous PU surface layers, aqueous PU cow split leather and preparation method thereof, belong to leatherwork technical field.The aqueous PU surface layer includes the following component according to mass fraction meter: 90-110 parts of aqueous PU resin, it is color 15-25 parts aqueous, 1-3 parts of bridging agent.The aqueous PU cow split leather hand feeling that the present invention makes is soft, not only has excellent tension intensity, tearing strength and fracture-resistant, also has excellent color fastness and peel strength；After the toning of different colours demand, cooperates the appearance decorative pattern of demand, the preferable exterior decorative effect of cow split leather and excellent performance can be assigned, be suitable as high-grade leather.
Description
Technical field
The invention belongs to leatherwork technical fields, and in particular to a kind of aqueous PU surface layer, aqueous PU cow split leather and
Its production method.
Background technique
Traditional PU leather is mostly rtificial leather, and rtificial leather is divided into artificial leather and synthetic leather, and the two is by artificial
The non-natural leather of method synthesis, but the two is still had any different: and artificial leather is usually using fabric as base fabric, with polyurethane resin
It as surface layer, is made using Coating technology, appearance and feel are similar to natural leather；And synthetic leather majority is to pass through
The three-D non-woven cloth of processing is substrate, and using polyurethane resin as surface layer, performance is similar to natural leather, and appearance is closer to naturally
Leather.
In process, surface can cover with paint, lacquer, colour wash, etc. a variety of materials to natural leather, to assign its different appearance, feel and property
Can, and traditional material is mostly solvent type material, leather obtained has good appearance and mechanical property, but it is being covered with paint, lacquer, colour wash, etc.
Certain smell can be generated in the process, it is unfriendly to environment and human body, therefore in order to build good green production environment, it is aqueous
Material is more and more applied in the covering with paint of leather.
The advantages of aqueous polyurethane ox-hide leather combines conventional urethane leather and natural leather, by external numerous factories
Family is praised highly, and because of technical restriction, the domestic research in relation to aqueous polyurethane ox-hide leather is very few, at present the water of country's better performances
Property polyurethane ox-hide leather mostly rely on import, therefore to aqueous polyurethane ox-hide leather research have great importance.
Summary of the invention
A kind of aqueous PU surface layer, aqueous PU cow split leather are provided the purpose of the present invention is overcome the deficiencies in the prior art
And preparation method thereof, which has soft feel and good mechanical property, and environmentally protective.
The present invention adopts the following technical scheme:
Aqueous PU surface layer, including the following component according to mass fraction meter: 90-110 parts of aqueous PU resin, aqueous color
15-25 parts, 1-3 parts of bridging agent.
Further, the aqueous PU resin is the aqueous PU resin of JWS-35NHR.
Further, the bridging agent is DN-01 bridging agent.
The present invention also provides a kind of production methods of aqueous PU surface layer, include the following steps:
Step 1: mixing color: according to mass fraction meter, aqueous PU resin and aqueous color are stirred evenly, with thickening
Agent adjusts viscosity；
Step 2: bridging agent is added, stirs evenly, obtains precoat；
Step 3: precoat obtained by step 2 is applied in release paper, obtains and is once coated with PU；
Step 4: precoat obtained by step 2 is continued to be applied to the primary coating surface PU, obtains secondary coating PU；
Step 5: water-based glue is applied to the secondary surface coating PU to get the aqueous PU surface layer.
Further, the control of viscosity described in step 1 is in 3000-4000cps.
Further, thickener described in step 1 is BF-250 thickener or PW-25 thickener, described in step 5
Water-based glue is water-based glue JU-2100.
Further, when being coated with described in step 3 with a thickness of 0.1-0.2mm, four sections of production line point when coating,
Every section of production line length 6m, 110-120 DEG C of first segment temperature, 115-125 DEG C of second segment temperature, 120-130 DEG C of temperature of third section,
4th section 120-130 DEG C of temperature, production line linear speed is 5.5m/min.
Further, when being coated with described in step 4 with a thickness of 0.1-0.2mm, three sections of production line point when coating,
Every section of production line length 6m, 110-120 DEG C of first segment temperature, 120-130 DEG C of second segment temperature, 125-135 DEG C of temperature of third section,
Production line linear speed is 5.5m/min.
Further, described in step 5 be coated with when with a thickness of 0.15-0.25mm.
The present invention also provides a kind of method for making aqueous PU cow split leather with the aqueous PU surface layer, steps are as follows: will
The aqueous PU surface layer turns to be depressed into cow split scytoblastema surface, turns pressure 5-7kg when pressure, and 8h is stood after winding to get the water
Property PU cow split leather.
Compared with the prior art, the present invention has the following beneficial effects:
By the present invention in that keeping leather finish technique more environmentally friendly with aqueous coating material, before covering with paint, by aqueous PU tree
Rouge JWS-35NHR, aqueous color and aqueous bridging agent DN-01 are used in compounding, and not only assign the excellent soft feel of leather and good
Good appearance, leather surface obtained is smooth, also enhances color in the adhesive force of leather surface, leather is made to have excellent color
Fastness；By coating water-based glue, the adhesion strength between surface layer and scytoblastema layer is enhanced, and then substantially increase the resistance to stripping of leather
From property；In addition, making leather by being applied aqueous painting facing layer material and water-based glue in the production of cow split leather jointly
With excellent resistance to tortuosity；After the toning of different colours demand, cooperates the appearance decorative pattern of demand, match according to of the present invention
Material and technique, can assign the preferable exterior decorative effect of cow split leather and excellent mechanical property, be suitable as high-grade leather.
Manufacture craft of the invention is easy, easily operated.
Specific embodiment
Below by specific embodiment, invention is further described in detail, but those skilled in the art will manage
Solution, the following example is merely to illustrate the present invention, and should not be taken as limiting the scope of the invention.
Primary raw material and reagent used in the present invention are as shown in table 1 below:
1 primary raw material of table and reagent
Embodiment 1
Aqueous PU surface layer, including the following component according to mass fraction meter: aqueous 100 parts of PU resin JWS-35NHR, water
Property 20 parts of color, 2 parts of bridging agent DN-01.
The production method of above-mentioned aqueous PU surface layer, includes the following steps:
Step 1: mixing color: according to mass fraction meter, aqueous PU resin and aqueous color are stirred evenly, with thickening
Agent BF-250 adjusts viscosity to 3000-4000cps；
Step 2: bridging agent DN-01 is added, stirs evenly, obtains precoat；
Step 3: precoat obtained by step 2 is applied in release paper to (release paper can select have difference according to demand
The release paper of lines), coating thickness 0.15mm, four sections, every section of production line length 6m of production line point when coating, first segment temperature
115 DEG C, 120 DEG C of second segment temperature, 125 DEG C of third section temperature, the 4th section 125 DEG C of temperature, production line linear speed is 5.5m/min, is obtained
Primary coating PU；
Step 4: precoat obtained by step 2 is continued to be applied to the primary coating surface PU, coating thickness 0.15mm, coating
When production line points three sections, every section of production line length 6m, 115 DEG C of first segment temperature, 125 DEG C of second segment temperature, third section temperature
130 DEG C, production line linear speed is 5.5m/min, obtains secondary coating PU；
Step 5: water-based glue is applied to the secondary surface coating PU, coating thickness 0.2mm is obtained described aqueous
PU surface layer；
Step 6: the aqueous PU surface layer is turned to be depressed into cow split scytoblastema surface, turns pressure 5-7kg when pressure, after winding
8h is stood to get the aqueous PU cow split leather.
Embodiment 2
Aqueous PU surface layer, including the following component according to mass fraction meter: aqueous 90 parts of PU resin JWS-35NHR, aqueous
15 parts of color, 1 part of bridging agent DN-01.
The production method of above-mentioned aqueous PU surface layer, includes the following steps:
Step 1: mixing color: according to mass fraction meter, aqueous PU resin and aqueous color are stirred evenly, with thickening
Agent PW-25 adjusts viscosity to 3000-4000cps；
Step 2: bridging agent DN-01 is added, stirs evenly, obtains precoat；
Step 3: precoat obtained by step 2 is applied in release paper to (release paper can select have difference according to demand
The release paper of lines), coating thickness 0.1mm, four sections, every section of production line length 6m of production line point when coating, first segment temperature
110 DEG C, 115 DEG C of second segment temperature, 120 DEG C of third section temperature, the 4th section 120 DEG C of temperature, production line linear speed is 5.5m/min, is obtained
Primary coating PU；
Step 4: precoat obtained by step 2 is continued to be applied to the primary coating surface PU, coating thickness 0.1mm, coating
When production line points three sections, every section of production line length 6m, 110 DEG C of first segment temperature, 120 DEG C of second segment temperature, third section temperature
125 DEG C, production line linear speed is 5.5m/min, obtains secondary coating PU；
Step 5: water-based glue is applied to the secondary surface coating PU, coating thickness 0.15mm obtains the aqueous face PU
Layer；
Step 6: the aqueous PU surface layer is turned to be depressed into cow split scytoblastema surface, turns pressure 5-7kg when pressure, after winding
8h is stood to get the aqueous PU cow split leather.
Embodiment 3
Aqueous PU surface layer, including the following component according to mass fraction meter: aqueous 110 parts of PU resin JWS-35NHR, water
Property 25 parts of color, 3 parts of bridging agent DN-01.
The production method of above-mentioned aqueous PU surface layer, includes the following steps:
Step 1: mixing color: according to mass fraction meter, aqueous PU resin and aqueous color are stirred evenly, with thickening
Agent BF-250 adjusts viscosity to 3000-4000cps；
Step 2: bridging agent DN-01 is added, stirs evenly, obtains precoat；
Step 3: precoat obtained by step 2 is applied in release paper to (release paper can select have difference according to demand
The release paper of lines), coating thickness 0.2mm, four sections, every section of production line length 6m of production line point when coating, first segment temperature
120 DEG C, 125 DEG C of second segment temperature, 130 DEG C of third section temperature, the 4th section 130 DEG C of temperature, production line linear speed is 5.5m/min, is obtained
Primary coating PU；
Step 4: precoat obtained by step 2 is continued to be applied to the primary coating surface PU, coating thickness 0.2mm, coating
When production line points three sections, every section of production line length 6m, 120 DEG C of first segment temperature, 130 DEG C of second segment temperature, third section temperature
135 DEG C, production line linear speed is 5.5m/min, obtains secondary coating PU；
Step 5: water-based glue is applied to the secondary surface coating PU, coating thickness 0.25mm is obtained described aqueous
PU surface layer；
Step 6: the aqueous PU surface layer is turned to be depressed into cow split scytoblastema surface, turns pressure 5-7kg when pressure, after winding
8h is stood to get the aqueous PU cow split leather.
Embodiment 4
Aqueous PU surface layer, including the following component according to mass fraction meter: aqueous 88 parts of PU resin JWS-35NHR, aqueous
26 parts of color, 4 parts of bridging agent DN-01.
The production method of above-mentioned aqueous PU surface layer, includes the following steps:
Step 1: mixing color: according to mass fraction meter, aqueous PU resin and aqueous color are stirred evenly, with thickening
Agent PW-25 adjusts viscosity to 3000-4000cps；
Step 2: bridging agent DN-01 is added, stirs evenly, obtains precoat；
Step 3: precoat obtained by step 2 is applied in release paper to (release paper can select have difference according to demand
The release paper of lines), coating thickness 0.21mm, four sections, every section of production line length 6m of production line point when coating, first segment temperature
109 DEG C, 113 DEG C of second segment temperature, 119 DEG C of third section temperature, the 4th section 132 DEG C of temperature, production line linear speed is 5.5m/min, is obtained
Primary coating PU；
Step 4: precoat obtained by step 2 is continued to be applied to the primary coating surface PU, coating thickness 0.12mm, coating
When production line points three sections, every section of production line length 6m, 115 DEG C of first segment temperature, 118 DEG C of second segment temperature, third section temperature
123 DEG C, production line linear speed is 5.5m/min, obtains secondary coating PU；
Step 5: water-based glue is applied to the secondary surface coating PU, coating thickness 0.14mm is obtained described aqueous
PU surface layer；
Step 6: the aqueous PU surface layer is turned to be depressed into cow split scytoblastema surface, turns pressure 5-7kg when pressure, after winding
8h is stood to get the aqueous PU cow split leather.
Embodiment 5
Aqueous PU surface layer, including the following component according to mass fraction meter: aqueous 112 parts of PU resin JWS-35NHR, water
Property 14 parts of color, 3.5 parts of bridging agent DN-01.
The production method of above-mentioned aqueous PU surface layer, includes the following steps:
Step 1: mixing color: according to mass fraction meter, aqueous PU resin and aqueous color are stirred evenly, with thickening
Agent BF-250 adjusts viscosity to 3000-4000cps；
Step 2: bridging agent DN-01 is added, stirs evenly, obtains precoat；
Step 3: precoat obtained by step 2 is applied in release paper to (release paper can select have difference according to demand
The release paper of lines), coating thickness 0.13mm, four sections, every section of production line length 6m of production line point when coating, first segment temperature
110 DEG C, 125 DEG C of second segment temperature, 130 DEG C of third section temperature, the 4th section 130 DEG C of temperature, production line linear speed is 5.5m/min, is obtained
Primary coating PU；
Step 4: precoat obtained by step 2 is continued to be applied to the primary coating surface PU, coating thickness 0.2mm, coating
When production line points three sections, every section of production line length 6m, 120 DEG C of first segment temperature, 130 DEG C of second segment temperature, third section temperature
135 DEG C, production line linear speed is 5.5m/min, obtains secondary coating PU；
Step 5: water-based glue is applied to the secondary surface coating PU, coating thickness 0.25mm is obtained described aqueous
PU surface layer；
Step 6: the aqueous PU surface layer is turned to be depressed into cow split scytoblastema surface, turns pressure 5-7kg when pressure, after winding
8h is stood to get the aqueous PU cow split leather.
Aqueous PU cow split leather made from the embodiment of the present invention 1 is tested, test result is as follows shown in table 1:
1 test result of table
As seen from the above table, the aqueous PU cow split leather hand feeling that the present invention makes is soft, not only strong with excellent pulling force
It spends, tear intensity and resistance to broken tearing property, also there is excellent color fastness and peel strength；After the toning of different colours demand, match
The appearance decorative pattern of conjunction demand can assign the preferable exterior decorative effect of cow split leather and excellent performance, be suitable as top grade
Leather.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, and protection scope is unlimited
In this.Those skilled in the art's made equivalent substitute or transformation on the basis of the present invention, in protection of the invention
Within the scope of, protection scope of the present invention is to survey with claims.
Claims (10)
1. aqueous PU surface layer, which is characterized in that including the following component according to mass fraction meter: 90-110 parts of aqueous PU resin,
Aqueous color 15-25 parts, 1-3 parts of bridging agent.
2. aqueous PU surface layer according to claim 1, which is characterized in that the aqueous PU resin is that JWS-35NHR is aqueous
PU resin.
3. aqueous PU surface layer according to claim 1, which is characterized in that the bridging agent is DN-01 bridging agent.
4. the production method of aqueous PU surface layer, which comprises the steps of:
Step 1: mixing color: according to mass fraction meter, aqueous PU resin and aqueous color are stirred evenly, with thickener tune
Save viscosity；
Step 2: bridging agent is added, stirs evenly, obtains precoat；
Step 3: precoat obtained by step 2 is applied in release paper, obtains and is once coated with PU；
Step 4: precoat obtained by step 2 is continued to be applied to the primary coating surface PU, obtains secondary coating PU；
Step 5: water-based glue is applied to the secondary surface coating PU to get the aqueous PU surface layer.
5. the production method of aqueous PU surface layer according to claim 4, which is characterized in that the control of viscosity described in step 1
In 3000-4000cps.
6. the production method of aqueous PU surface layer according to claim 4, which is characterized in that thickener described in step 1 is
BF-250 thickener or PW-25 thickener, water-based glue described in step 5 are water-based glue JU-2100.
7. the production method of aqueous PU surface layer according to claim 4, which is characterized in that when being coated with described in step 3
With a thickness of 0.1-0.2mm, four sections, every section of production line length 6m of production line point when coating, 110-120 DEG C of first segment temperature, the
Two sections 115-125 DEG C of temperature, 120-130 DEG C of temperature of third section, the 4th section 120-130 DEG C of temperature, production line linear speed is 5.5m/
min。
8. the production method of aqueous PU surface layer according to claim 4, which is characterized in that when being coated with described in step 4
With a thickness of 0.1-0.2mm, three sections, every section of production line length 6m of production line point when coating, 110-120 DEG C of first segment temperature, the
Two sections 120-130 DEG C of temperature, 125-135 DEG C of temperature of third section, production line linear speed is 5.5m/min.
9. the production method of aqueous PU surface layer according to claim 4, which is characterized in that when being coated with described in step 5
With a thickness of 0.15-0.25mm.
10. the method that aqueous PU surface layer makes aqueous PU cow split leather described in claim 1, which is characterized in that step are as follows:
The aqueous PU surface layer is turned to be depressed into cow split scytoblastema surface, turns pressure 5-7kg when pressure, 8h is stood after winding to get described
Aqueous PU cow split leather.
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| CN201910285939.XA CN109881495A (en) | 2019-04-10 | 2019-04-10 | Aqueous PU surface layer, aqueous PU cow split leather and preparation method thereof |
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| CN101138901A (en) * | 2007-08-17 | 2008-03-12 | 晋江峰安皮业有限公司 | Method of preparing baseball surfacing material |
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| CN103879127A (en) * | 2014-03-27 | 2014-06-25 | 峰安皮业股份有限公司 | Method for manufacturing flocking split leather fabric |
| CN104608461A (en) * | 2015-02-10 | 2015-05-13 | 峰安皮业股份有限公司 | Production method of water-based dry foaming fabric |
| CN106283708A (en) * | 2016-09-12 | 2017-01-04 | 福建华阳超纤有限公司 | A kind of production technology of the refrigerant superfine fiber chemical leather of aqueous |
| CN106808779A (en) * | 2016-12-30 | 2017-06-09 | 峰安皮业股份有限公司 | A kind of production method of the ventilative 3D stereoeffect double-layer fur fabrics of natural environmental-protective |
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2019
- 2019-04-10 CN CN201910285939.XA patent/CN109881495A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101138901A (en) * | 2007-08-17 | 2008-03-12 | 晋江峰安皮业有限公司 | Method of preparing baseball surfacing material |
| KR20120064239A (en) * | 2010-12-09 | 2012-06-19 | (주)엘지하우시스 | Synthetic leather sheet having multi-color effect and method for manufacturing the same |
| CN103879127A (en) * | 2014-03-27 | 2014-06-25 | 峰安皮业股份有限公司 | Method for manufacturing flocking split leather fabric |
| CN104608461A (en) * | 2015-02-10 | 2015-05-13 | 峰安皮业股份有限公司 | Production method of water-based dry foaming fabric |
| CN106283708A (en) * | 2016-09-12 | 2017-01-04 | 福建华阳超纤有限公司 | A kind of production technology of the refrigerant superfine fiber chemical leather of aqueous |
| CN106808779A (en) * | 2016-12-30 | 2017-06-09 | 峰安皮业股份有限公司 | A kind of production method of the ventilative 3D stereoeffect double-layer fur fabrics of natural environmental-protective |
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Application publication date: 20190614 |