CN106436330A - Coating cloth processing method - Google Patents
Coating cloth processing method Download PDFInfo
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- CN106436330A CN106436330A CN201510488753.6A CN201510488753A CN106436330A CN 106436330 A CN106436330 A CN 106436330A CN 201510488753 A CN201510488753 A CN 201510488753A CN 106436330 A CN106436330 A CN 106436330A
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Abstract
The invention relates to a coating cloth processing method, which comprises the following steps that 1, a water-based PU (poly urethane) pulp layer is formed on the surface of non-woven cloth; 2, the water-based PU pulp layer is in contact with a coagulating agent in a sealed chamber; the coagulating agent is pressed into the water-based PU pulp layer through high-temperature and high-pressure means, so that the whole water-based PU pulp layer is in full contact with the coagulating agent; 3, drying is performed for removing moisture in the water-based PU pulp layer, so that the water-based PU pulp layer is formed into a water-based PU film layer. The water-based PU film layer has uniform pore distribution, consistent elasticity and flexibility, and good anti-stripping intensity; the thickness of the water-based PU film layer trends to be consistent; the thickness of the water-based PU film layer at least maintains 95 percent to 99 percent of the thickness of the water-based PU pulp layer; the water-based PU film layer does not collapse.
Description
Technical field
The present invention is the processing method of the coating cloth with regard to forming aqueouss PU film layer on the surface of non-weaving cloth.
Background technology
Traditional PU coating cloth, employs the production technology that dimethylformamide (DMF) is solvent, produced
Need in journey to use water in a large number, and produce a large amount of harmful waste waters, to environment be one and greatly injure, and coating
Cloth final products cannot avoid DMF to remain, and greatly negatively affects for using or reclaiming also to produce.
Based on environmental protection and Product Safety, develop aqueouss PU and replace the technique of solvent-borne type PU and make product.
The aqueouss PU gloves production method being proposed as People's Republic of China (PRC) CN102429331B, the method includes：
Step 1：The glove core retainer plate of coagulator will be soaked with fingerprint, described coagulator is so that water-base resin is produced
Crosslinking or the material of complexation；Step S2, the glove core being enclosed within fingerprint is immersed waterborne polyurethane resin (aqueouss
PU) in slurry, make to be formed one layer of aqueouss PU coating in glove surface；Step S3, to formation aqueouss PU coating
Glove dried or air-dried.
And for example People's Republic of China (PRC) CN102669855A aqueous polyurethane coating glove and its production technology, bag
Include following steps：A. preheat：Textile glove core is covered on fingerprint, preheating；B. soak coagulator, described solidifying
Gu agent is volatilizable organic acid；C. toast；D. dipping solution, glue composition includes aqueous polyurethane and water；
E. dry；F. the demoulding.
The contained production technology of above-mentioned patent documentation has that method of completing the square applied by coagulator.Known coagulator
Effect is to make aqueouss PU to produce crosslinked or complexation, and it is had with the structural property of aqueouss PU film forming and directly associates
Property.Above-mentioned process meanses first by coagulator in advance film forming in the surface of textile glove core, then the step by dipping
Rapid shaping aqueouss PU coating in coagulator film layer.Aqueouss PU coating and coagulator are that two tunics overlap on and knit
The surface of thing glove core, coagulator is only contacted with a surface of aqueouss PU coating, the inside of aqueouss PU coating
Then do not contact with coagulator or contact deficiency, so that aqueouss PU coating is only in the table contacting with coagulator
Face crosslink or complexation Hirschfeld-Klinger reaction, and the inside of aqueouss PU coating and another surface are not then coagulated
Gu part is not filled in reaction or reaction.Carry out follow-up baking step in this case, moisture content is once depart from aqueouss PU
Coating, that is, the distribution of pores assuming coating is uneven, elasticity and pliable is not good, peel strength weakens,
The aqueouss PU film layer that thicknesses of layers is uneven, subside.These problems are easier in thicker aqueouss PU coating
Occur.
Above-mentioned patent documentation is that coagulator is previously formed in textile glove wicking surface, is formed on coagulator
Aqueouss PU coating；Another kind of known technology is then that aqueouss PU coating is previously formed in fabric face, then will
Coagulator is sprayed in aqueouss PU coating.Whether that a kind of known technology, all it may happen that aqueouss PU apply
Layer contact the problem of deficiency with coagulator so that after drying PU film layer because of crosslinking or complex reaction inequality,
Distribution of pores occurs uneven, film forming thickness is uneven, or even the performance subsided.
Content of the invention
The purpose of the present invention is to provide a kind of above-mentioned aqueouss PU coating of method solution to contact deficiency with coagulator
Problem.
Solution to the problems described above of the present invention includes：Step 1, forms aqueouss on the surface of a non-weaving cloth
PU pulp layer；Step 2, makes this aqueouss PU pulp layer contact with coagulator, by high temperature in a confined chamber
Coagulator is pressed in this aqueouss PU pulp layer for high pressure tactics；Step 3, dries, makes this aqueouss PU pulp layer
It is shaped to aqueouss PU film layer.
Further, the pressure of described High Temperature High Pressure means is 1kPa, and temperature is 80～150 DEG C.
Further, it is that the precoating of aqueouss PU slurry is distributed in a separation cloth, then non-weaving cloth is overlying on this water
Property PU pulp surface；The surface making this separation cloth in a confined chamber is contacted with coagulator, by High Temperature High Pressure
Means make the coagulator on this surface be pressed in this aqueouss PU pulp layer by this separation cloth, make whole aqueouss PU slurry
The bed of material is filled part and is contacted with coagulator；Dry, remove the moisture content of this aqueouss PU pulp layer, make this aqueouss PU slurry
Formable layer is aqueouss PU film layer.Therefore, the present invention further includes the step removing separation cloth.
Beneficial effects of the present invention are：
The present invention provides a kind of processing method of coating cloth, by High Temperature High Pressure means, should by coagulator press-in
In aqueouss PU pulp layer, make whole aqueouss PU pulp layer all fill part and contact with coagulator.The aqueouss of drying forming
PU film layer, has uniform distribution of pores, consistent elasticity and a pliability, good peel strength, water
Property PU thicknesses of layers reaches unanimity, aqueouss PU thicknesses of layers at least maintain aqueouss PU slurry layer thickness 95%～
99%, aqueouss PU film layer is not subsided.
By the means of High Temperature High Pressure, so that the part moisture content in aqueouss PU slurry is departed from, contribute to making coagulator
Enter in PU pulp layer, coagulator can faster make aqueouss PU crosslinked or complexation, shortens aqueouss PU setting time.
The method of the present invention shortens processing procedure and time.
The method of the present invention is entirely without waste water, also no any material that environment or human body are poisoned.
Brief description
Fig. 1 is coated or impregnated with being formed the signal of an aqueouss PU pulp layer for the present invention on the surface of non-weaving cloth
Figure.
Fig. 2 makes, for the present invention, the schematic diagram that this aqueouss PU pulp layer contacted with coagulator in a confined chamber.
Coagulator is pressed into the signal in this aqueouss PU pulp layer by Fig. 3 for the present invention by High Temperature High Pressure means
Figure.
Fig. 4 makes coagulator that whole aqueouss PU pulp layer is produced crosslinked and complex reaction for the present invention.
Fig. 5 is the structural representation of aqueouss PU film layer after present invention drying and non-weaving cloth.
Fig. 6 is that the present invention forms the schematic diagram of an aqueouss PU pulp layer on separation cloth surface.
Non-weaving cloth is overlying on the schematic diagram of this aqueouss PU slurry layer surface for the present invention by Fig. 7.
Fig. 8 makes, for the present invention, the schematic diagram that this aqueouss PU pulp layer contacted with coagulator in confined chamber.
Fig. 9 makes coagulator be pressed into this aqueouss PU slurry by this separation cloth for the present invention by High Temperature High Pressure means
Schematic diagram in layer.
Figure 10 is that the coagulator of the present invention makes whole aqueouss PU pulp layer produce crosslinked and complex reaction.
Figure 11 is the structural representation of aqueouss PU film layer after present invention drying and non-weaving cloth.
Figure 12 removes the schematic diagram of separation cloth for the present invention.
Reference
20：Non-weaving cloth；21：Aqueouss PU pulp layer；22：Coagulator；23：Aqueouss PU film layer；24：
Hole；29：Confined chamber；30：Separation cloth；31：Aqueouss PU pulp layer；32：Non-weaving cloth；33：
Confined chamber；34：Coagulator；35：Aqueouss PU film layer；36：Hole.
Specific embodiment
Embodiment 1, the processing method of coating cloth of the present invention, including：
Step 1, forms an aqueouss PU pulp layer on the surface of a non-weaving cloth, forms this aqueouss PU pulp layer
Means including but not limited to being coated or impregnated with；Aqueouss PU slurry is to be 97%～99.9% by quality proportion
Waterborne polyurethane resin (aqueouss PU) with 0.1%～3% water-based thickener configuration mixed slurry.
Step 2, the item of step 1 is made in a confined chamber surface of this aqueouss PU pulp layer and coagulator connect
Touch, the means of contact are including but not limited to sprinkling, coating.Should by coagulator press-in by High Temperature High Pressure means
In aqueouss PU pulp layer, make whole aqueouss PU pulp layer fill part and contact to carry out crosslinking or complexation with coagulator.
Described coagulator is to make aqueouss PU produce crosslinked or complexation material.This coagulator can precoat and be distributed in aqueouss PU slurry
The surface of the bed of material, by High Temperature High Pressure means, coagulator is pressed in this aqueouss PU pulp layer in confined chamber.
The pressure of described High Temperature High Pressure means is at least 1kPa, and temperature is 80～150 DEG C.
Step 3, the item processing through step 2 is removed confined chamber, dries, removes this aqueouss PU pulp layer
Moisture content, make this aqueouss PU pulp layer be shaped to aqueouss PU film layer.
Fig. 1 to Fig. 5 describes embodiment 1, and the ratio that accompanying drawing is suitable to illustrate is drawn, non-by actual size, close
First chat bright.Fig. 1, the surface of non-weaving cloth 20 is coated or impregnated with forming an aqueouss PU pulp layer 21.Fig. 2, step
Rapid 2, so that this aqueouss PU pulp layer 21 is contacted with coagulator 22 in a confined chamber 29.Fig. 3, step 2, lead to
Cross high temperature high pressure tactics coagulator 22 is pressed in this aqueouss PU pulp layer 21, make whole aqueouss PU pulp layer 21
Fill part to contact with coagulator 22.Fig. 4, coagulator 22 makes whole aqueouss PU pulp layer 21 produce crosslinking and complexation
Reaction.Fig. 5, after drying, aqueouss PU film layer 23 has uniform hole 24 and is distributed, and thickness reaches unanimity, water
Property PU film layer 23 thickness at least maintains the 95%～99% of the thickness of aqueouss PU pulp layer 21, aqueouss PU film layer 23
No subside.
Embodiment 2, the processing method of coating cloth of the present invention, including：
Step 1, forms an aqueouss PU pulp layer on a separation cloth surface, forms the handss of this aqueouss PU pulp layer
Section is including but not limited to being coated or impregnated with.The aqueouss that aqueouss PU slurry is is 97%～99.9% by quality proportion
Polyurethane resin (aqueouss PU) with 0.1%～3% water-based thickener configuration mixed slurry.
Step 2, a non-weaving cloth is overlying on the surface of this aqueouss PU pulp layer；
Step 3, the item of step 2 is made in a confined chamber surface of this separation cloth contacted with coagulator, connects
Tactile means are including but not limited to sprinkling, coating.Coagulator is made to pass through this separation cloth by High Temperature High Pressure means
Be pressed in this aqueouss PU pulp layer, make whole aqueouss PU pulp layer fill part contact with coagulator with carry out crosslinking or
Complex reaction.Described coagulator is to make aqueouss PU produce crosslinked or complexation material.This coagulator can pre-coating
In the surface of this separation cloth, coagulator is made to be pressed into by this separation cloth by High Temperature High Pressure means in confined chamber
In this aqueouss PU pulp layer.The pressure of described High Temperature High Pressure means is at least 1kPa, and temperature is 80～150 DEG C.
Step 4, the item processing through step 3 is removed confined chamber, dries, removes this aqueouss PU pulp layer
Moisture content, make this aqueouss PU pulp layer be shaped to aqueouss PU film layer.
Step 5, removes separation cloth.
Fig. 6 to Figure 12 describes embodiment 2.Fig. 6, separation cloth 30 surface forms an aqueouss PU pulp layer 31.
Fig. 7, non-weaving cloth 32 is overlying on the surface of this aqueouss PU pulp layer 31.Fig. 8, makes in confined chamber 33
This separation cloth 30 surface is contacted with coagulator 34.Fig. 9, makes coagulator 34 pass through by High Temperature High Pressure means
This separation cloth 30 is pressed in this aqueouss PU pulp layer 31, so that whole aqueouss PU pulp layer 31 is filled part and coagulate
Gu agent 34 contacts.Figure 10, coagulator 34 makes whole aqueouss PU pulp layer 31 produce crosslinking and complex reaction.
Figure 11, after drying, aqueouss PU film layer 35 has uniform hole 36 and is distributed, and thickness reaches unanimity, aqueouss
PU film layer 35 thickness at least maintains the 95%～99% of the thickness of aqueouss PU pulp layer 31, aqueouss PU film
Layer 35 nothing are subsided.Figure 12, removes separation cloth 30.
Claims (4)
1. a kind of processing method of coating cloth is it is characterised in that comprise：
Step 1, forms an aqueouss PU pulp layer on the surface of a non-weaving cloth；
Step 2, makes the surface of this aqueouss PU pulp layer contact with coagulator in a confined chamber, then via height
The coagulator on this surface is pressed in this aqueouss PU pulp layer for warm high pressure tactics, so that whole aqueouss PU pulp layer is filled
Part is contacted with coagulator；
Step 3, dries, removes the moisture content of this aqueouss PU pulp layer, make this aqueouss PU pulp layer be shaped to water
Property PU film layer.
2. the processing method of coating cloth as claimed in claim 1 is it is characterised in that described High Temperature High Pressure means
Pressure be at least 1kPa, temperature be 80～150 DEG C.
3. a kind of processing method of coating cloth is it is characterised in that include：
Step 1, forms an aqueouss PU pulp layer on a separation cloth surface；
Step 2, a non-weaving cloth is overlying on the surface of this aqueouss PU pulp layer；
Step 3, makes the surface of this separation cloth contact with coagulator, by High Temperature High Pressure means in a confined chamber
So that the coagulator on this surface is pressed in this aqueouss PU pulp layer by this separation cloth, make whole aqueouss PU pulp layer
Fill part to contact with coagulator；
Step 4, dries, removes the moisture content of this aqueouss PU pulp layer, make this aqueouss PU pulp layer be shaped to water
Property PU film layer；
Step 5, removes separation cloth.
4. the processing method of coating cloth as claimed in claim 4 is it is characterised in that described High Temperature High Pressure means
Pressure be at least 1kPa, temperature be 80～150 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510488753.6A CN106436330A (en) | 2015-08-11 | 2015-08-11 | Coating cloth processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510488753.6A CN106436330A (en) | 2015-08-11 | 2015-08-11 | Coating cloth processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106436330A true CN106436330A (en) | 2017-02-22 |
Family
ID=58092983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510488753.6A Pending CN106436330A (en) | 2015-08-11 | 2015-08-11 | Coating cloth processing method |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1279313A (en) * | 1999-06-29 | 2001-01-10 | 财团法人工业技术研究院 | A kind of manufacture method of polyurethane synthetic leather |
| WO2009011471A1 (en) * | 2007-07-18 | 2009-01-22 | Hyunkyung Shin | Aqueous polyurethane coated gloves and method for manufacturing the same |
| CN102429331A (en) * | 2011-10-16 | 2012-05-02 | 张晖 | Production process of water-based PU gloves |
| KR101211488B1 (en) * | 2010-09-27 | 2012-12-12 | 코티드 글로브스 피브이티 엘티디 | Manufacturing method of water borne polyurethane coated gloves |
| 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 |
| CN202688742U (en) * | 2012-03-12 | 2013-01-23 | 广州市宏伟皮革有限公司 | Water-based eco-environmental dry-method synthetic leather |
| CN103015220A (en) * | 2012-12-20 | 2013-04-03 | 陕西科技大学 | Preparation method of thermoplastic polyurethane synthetic leather |
| CN103774455A (en) * | 2012-10-15 | 2014-05-07 | 李翠平 | Water-based polyurethane superfine fiber synthetic leather and preparation method thereof |
-
2015
- 2015-08-11 CN CN201510488753.6A patent/CN106436330A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1279313A (en) * | 1999-06-29 | 2001-01-10 | 财团法人工业技术研究院 | A kind of manufacture method of polyurethane synthetic leather |
| WO2009011471A1 (en) * | 2007-07-18 | 2009-01-22 | Hyunkyung Shin | Aqueous polyurethane coated gloves and method for manufacturing the same |
| KR101211488B1 (en) * | 2010-09-27 | 2012-12-12 | 코티드 글로브스 피브이티 엘티디 | Manufacturing method of water borne polyurethane coated gloves |
| CN102429331A (en) * | 2011-10-16 | 2012-05-02 | 张晖 | Production process of water-based PU gloves |
| CN202688742U (en) * | 2012-03-12 | 2013-01-23 | 广州市宏伟皮革有限公司 | Water-based eco-environmental dry-method synthetic leather |
| 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 |
| CN103774455A (en) * | 2012-10-15 | 2014-05-07 | 李翠平 | Water-based polyurethane superfine fiber synthetic leather and preparation method thereof |
| CN103015220A (en) * | 2012-12-20 | 2013-04-03 | 陕西科技大学 | Preparation method of thermoplastic polyurethane synthetic leather |
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Effective date of abandoning: 20190301 |
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