CN107385941A - A kind of vapor-permeable type elastic force dermatoglyph hydrolysis resistant polyurethane leather and preparation method thereof - Google Patents
A kind of vapor-permeable type elastic force dermatoglyph hydrolysis resistant polyurethane leather and preparation method thereof Download PDFInfo
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- CN107385941A CN107385941A CN201710727029.3A CN201710727029A CN107385941A CN 107385941 A CN107385941 A CN 107385941A CN 201710727029 A CN201710727029 A CN 201710727029A CN 107385941 A CN107385941 A CN 107385941A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0009—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using knitted fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
- D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0095—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by inversion technique; by transfer processes
- D06N3/0097—Release surface, e.g. separation sheets; Silicone papers
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
- D06N3/145—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes two or more layers of polyurethanes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/12—Permeability or impermeability properties
- D06N2209/121—Permeability to gases, adsorption
- D06N2209/123—Breathable
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1607—Degradability
- D06N2209/1621—Water-soluble, water-dispersible
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1635—Elasticity
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The invention discloses a kind of vapor-permeable type elastic force dermatoglyph hydrolysis resistant polyurethane leather and preparation method thereof, including base fabric, the scrim surfaces adhesion tack coat, and there is adherent layer on the surface of the tack coat by intervening layers.Using the elastic knitting cloth of two-sided raising as base fabric；Successively surface layer slurry and intermediate layer slurry are formed into surface layer and intermediate layer respectively coated in release liners after baking and curing；It is tack coat with the EU resin SA 36 of low modulus, by the tack coat coated on being bonded on intermediate layer and with the elastic knitting cloth, cooling stripping release liners obtain semi-finished product after drying；By gained semi-finished product in continuous boarding machine dry rub 10 ~ 15 minutes, get product.Elastic force dermatoglyph hydrolysis resistant polyurethane shoe lining leather of the present invention, there is excellent permeability, and leather pattern effect and feel are similar to corium shoe lining leather.
Description
Technical field
The present invention relates to a kind of preparation of Synthetic Leather, specifically a kind of water-fast depolymerization of vapor-permeable type elastic force dermatoglyph
Urethane leather and preparation method thereof.
Background technology
Natural leather, which is called, does corium, is Animal Skin one kind resulting after physics, the chemical process such as depilation and tanning
Natural macromolecular material, because its soft comfortable and durable, ventilative characteristic turn into the optimal fabric of shoemaking.Yet with corium
Animal cuticle is originated from, can not be produced in enormous quantities, the growing demand of the mankind can not be met.And synthetic leather product have it is rich and varied
Outward appearance and similar corium feel, therefore turn into the optimal substitute of natural leather.
Compared with natural leather, often feel is stiff for synthetic leather product in the market, skin sense deficiency, so as to limit
Application of the synthetic leather on high-grade footwear product.Meanwhile also be present the problem of gas permeability is poor in synthetic leather product, worn after shoemaking
There is the phenomenon of vexed pin；In addition, shoe lining leather contacts with pin sweat for a long time is easier hydrolysis efflorescence occur, the durability of shoes is influenceed.
With the improvement of living standards, people propose higher requirement, exploitation one to the comfortableness and durability of shoes
Kind of leather pattern effect is good, anti-hydrolytic performance is excellent, while the shoe lining leather with air permeable effect disclosure satisfy that the needs of consumer, expand
Synthetic leather is in the application in high-grade footwear market, market advance optimism.
The content of the invention
The present invention is intended to provide a kind of vapor-permeable type elastic force dermatoglyph hydrolysis resistant polyurethane leather and preparation method thereof, prepared by the present invention
Synthetic Leather there is excellent leather pattern effect, anti-hydrolytic performance is excellent, and has airing function, suitable for shoe lining leather.
A kind of vapor-permeable type elastic force dermatoglyph hydrolysis resistant polyurethane leather, including base fabric, the scrim surfaces adhesion have tack coat, institute
There is adherent layer on the surface for stating tack coat by intervening layers；The tack coat slurry is by following components structure in parts by weight
Into：
Further scheme, the base fabric are the elastic knitting cloth of two-sided raising.
Further scheme, the intermediate layer slurry are made up of in parts by weight following components：
Further scheme, the adherent layer slurry are made up of in parts by weight following components：
Another goal of the invention of the present invention is to provide a kind of system of above-mentioned vapor-permeable type elastic force dermatoglyph hydrolysis resistant polyurethane leather
Preparation Method, it comprises the following steps：
(1) adherent layer slurry is coated in release liners in the way of gapless is applied and scraped, formed after baking and curing anti-sticking
Layer；Intermediate layer slurry is coated on adherent layer according to 0.15~0.20mm gap again, intermediate layer is formed after baking and curing；
(2) tack coat slurry is coated on to the tack coat that thick 0.10-0.15mm is formed on intermediate layer, then base fabric is fitted in
On tack coat, then after 120-140 DEG C of drying, cooling obtains semi-finished product after peeling off release liners；
(3) by semi-finished product, dry rub obtains finished product in 10~15 minutes in continuous boarding machine.
Further scheme, the temperature of the baking and curing in the step (1) is 100-130 DEG C.
Wherein EU resin SA-36, LT-95 and ST-8030PC are that Hefei Amway polyurethane new material is limited
Company produces, and wherein LT-95 modulus is higher, has dry and comfortable wear-resisting effect；ST-8030PC modulus is relatively low, soft；
SA-36 has the characteristics of modulus is relatively low, soft, hydrolysis is excellent；Levelling agent BYK-9565 gives birth to for German Bi Ke chemical assistants
The levelling agent of production, mill base and solvent DMF (DMF) are purchased in market obtain.Solvent ETAC (ethyl acetate), DMF
(N,N-dimethylformamide) is purchased in market obtain.
The present invention is mainly adjusted by the coating thickness in intermediate layer and tack coat is matched to adjust the feel of finished leather and breathe freely
Using ETAC and DMF as solvent, ETAC polarity is weak for performance, wherein tack coat, weak to intermediate layer erosiveness, cloth base is permeated less,
It is soft after fitting；DMF polarity is strong, strong to intermediate layer erosiveness, can promote intermediate layer perforate, increases gas permeability；But
More to the infiltration of cloth base, feel is slightly worse after fitting.The present invention by adjust tack coat solvent burden ratio can be adjusted so as to feel and thoroughly
Gas can meet the product of requirement, and the technological operation is simple, without the ventilative auxiliary agent of extra increase or acupuncture punching, be opened at table
The techniques such as hole.
In addition, Synthetic Leather of the present invention, compared with conventional urethane synthetic leather, its outstanding feature is embodied in：
(1) polyurethane leather prepared by the present invention has excellent permeability, can be used as shoe lining leather；
(2) polyurethane leather prepared by the present invention is soft, and leather pattern effect is preferable, and it connects with lining leather of pigskin shoes effect
Closely；
(3) for polyurethane leather prepared by the present invention due to not having wet method foaming layer, anti-hydrolytic performance is ideal, significantly improves
Its durability.
Embodiment
Technical scheme is further described again below by case study on implementation, but the specific reality of the present invention
The mode of applying is not limited to this, the equivalent change or modification that all Spirit Essences according to the present invention are made, should all cover in the present invention
Protection domain in.
Embodiment 1：
(1) using the elastic knitting cloth of two-sided raising as base fabric, the elastic knitting cloth obtains to be purchased in market, selected from the huge nation in Haining
The special beautiful suede in the 0.55 of warp knit Co., Ltd.
(2) adherent layer slurry is coated in release liners in the way of gapless is applied and scraped, formed after 100 DEG C of baking and curings
Adherent layer, then intermediate layer slurry is coated on surface layer according to 0.16mm thickness, form intermediate layer after 120 DEG C of baking and curings.
The formula of the adherent layer slurry is formed as follows by mass fraction：
The formula of the intermediate layer slurry is formed as follows by mass fraction：
(3) using EU resin SA-36 as tack coat, the tack coat is coated on according to 0.13mm thickness
On intermediate layer prepared by step (2), and it is bonded with the long hair side of elastic knitting cloth of the two-sided raising, it is cold after 130 DEG C of drying
But release liners are peeled off and obtain semi-finished product.
The formula of the tack coat slurry is formed as follows by mass fraction：
EU resin SA-36 100
ETAC 30
(4) by semi-finished product obtained by step (3), dry rub obtains finished product in 10 minutes in continuous boarding machine.Made of the technique
Synthetic leather gas permeability is slightly worse, and ventilative test result is：700mL/cm2* h, but it is soft.
Embodiment 2：
(1) using the elastic knitting cloth of two-sided raising as base fabric, the elastic knitting cloth obtains to be purchased in market, selected from the huge nation in Haining
The special beautiful suede in the 0.55 of warp knit Co., Ltd.
(2) adherent layer slurry is coated in release liners in the way of gapless is applied and scraped, formed after 120 DEG C of baking and curings
Adherent layer, then intermediate layer slurry is coated on surface layer according to 0.15mm thickness, form intermediate layer after 120 DEG C of baking and curings.
The formula of the adherent layer slurry is formed as follows by mass fraction：
The formula of the intermediate layer slurry is formed as follows by mass fraction：
(3) using EU resin SA-36 as tack coat, the tack coat is coated on according to 0.13mm thickness
On intermediate layer prepared by step (2), and it is bonded with the long hair side of elastic knitting cloth of the two-sided raising, it is cold after 120 DEG C of drying
But release liners are peeled off and obtain semi-finished product.
The formula of the tack coat slurry is formed as follows by mass fraction：
EU resin SA-36 100
ETAC 20
DMF 10
(4) by semi-finished product obtained by step (3), dry rub obtains finished product in 10 minutes in continuous boarding machine.Made of the technique
Synthetic leather permeability is excellent, test result of breathing freely：3200mL/cm2* h, and feel is relatively soft.
Embodiment 3：
(1) using the elastic knitting cloth of two-sided raising as base fabric, the elastic knitting cloth obtains to be purchased in market, selected from the huge nation in Haining
The special beautiful suede in the 0.55 of warp knit Co., Ltd.
(2) adherent layer slurry is coated in release liners in the way of gapless is applied and scraped, formed after 130 DEG C of baking and curings
Adherent layer, then intermediate layer slurry is coated on surface layer according to 0.17mm thickness, form intermediate layer after 120 DEG C of baking and curings.
The formula of the adherent layer slurry is formed as follows by mass fraction：
The formula of the intermediate layer slurry is formed as follows by mass fraction：
(3) using EU resin SA-36 as tack coat, the tack coat is coated on according to 0.13mm thickness
On intermediate layer prepared by step (2), and it is bonded with the long hair side of elastic knitting cloth of the two-sided raising, it is cold after 130 DEG C of drying
But release liners are peeled off and obtain semi-finished product.
The formula of the tack coat slurry is formed as follows by mass fraction：
EU resin SA-36 100
ETAC 10
DMF 20
(4) by semi-finished product obtained by step (3), dry rub obtains finished product in 10 minutes in continuous boarding machine.
Synthetic leather permeability is very good made of the technique, test result of breathing freely：4900mL/cm2* h but feel is slightly worse.
Leather product Air permenbility is conventionally synthesized to be essentially：0~300mL/cm2* h, corium product Air permenbility are essentially：500~
2500mL/cm2* h, and the Air permenbility in pigskin shoes is 8000~10000mL/cm2*h。
So product prepared by the present invention, on the premise of pliability is ensured, Air permenbility can reach 2000~3000mL/
cm2* h, it is preferable dermal replacement.
The present embodiment is only used for the elaboration of the technology of the present invention content, but the substantive content of the present invention is not limited in above-mentioned reality
Apply described in example, one of ordinary skill in the art can with and should know any change and change based on true spirit
Shape, protection scope of the present invention should be belonged to.
The present invention is except having an excellent permeability, and outside the dermatoglyph of soft feel and class corium, anti-hydrolytic performance is also very
It is excellent, particularly suitable for substituting pigskin or sheepskin, for high-grade shoe lining leather product.
Claims (6)
1. a kind of vapor-permeable type elastic force dermatoglyph hydrolysis resistant polyurethane leather, including base fabric, it is characterised in that：The scrim surfaces adhesion has
There is adherent layer on tack coat, the surface of the tack coat by intervening layers；The tack coat slurry is by weight by following components
Number is measured to form：
EU resin SA-36 80-120 parts
ETAC 20-30 parts
DMF 0-15 parts
Mill base and/or toner 0-10 parts.
A kind of 2. vapor-permeable type elastic force dermatoglyph hydrolysis resistant polyurethane leather according to claim 1, it is characterised in that：The base fabric
For the elastic knitting cloth of two-sided raising.
A kind of 3. vapor-permeable type elastic force dermatoglyph hydrolysis resistant polyurethane leather according to claim 1, it is characterised in that：The centre
Layer slurry is made up of in parts by weight following components：
EU resin ST-8030PC 80-120 parts
DMF 40-60 parts
Mill base and/or toner 10-20 parts
0.10 ~ 0.50 part of levelling agent BYK-9565.
A kind of 4. vapor-permeable type elastic force dermatoglyph hydrolysis resistant polyurethane leather according to claim 1, it is characterised in that：It is described anti-sticking
Layer slurry is made up of in parts by weight following components：
EU resin LT-95 80-120 parts
DMF 40-60 parts
Mill base and/or toner 2-10 parts
0.10 ~ 0.50 part of levelling agent BYK-9565.
A kind of 5. preparation method of vapor-permeable type elastic force dermatoglyph hydrolysis resistant polyurethane leather as claimed in claim 1, it is characterised in that：
Comprise the following steps：
（1）Adherent layer slurry is coated in release liners in the way of gapless is applied and scraped, adherent layer is formed after baking and curing；Again
Intermediate layer slurry is formed into intermediate layer according to 0.15 ~ 0.20mm gap coated on adherent layer after baking and curing；
（2）Tack coat slurry is coated on to the tack coat that thick 0.10-0.15mm is formed on intermediate layer, then base fabric is fitted in into bonding
On layer, then after 120-140 DEG C of drying, cooling obtains semi-finished product after peeling off release liners；
（3）By semi-finished product, dry rub obtains finished product in 10 ~ 15 minutes in continuous boarding machine.
6. preparation method according to claim 5, it is characterised in that：The step（1）In the temperature of baking and curing be
100-130℃。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710727029.3A CN107385941B (en) | 2017-08-22 | 2017-08-22 | Breathable elastic leather grain hydrolysis-resistant polyurethane leather and preparation method thereof |
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| CN201710727029.3A CN107385941B (en) | 2017-08-22 | 2017-08-22 | Breathable elastic leather grain hydrolysis-resistant polyurethane leather and preparation method thereof |
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| CN107385941B CN107385941B (en) | 2020-07-28 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110130118A (en) * | 2019-05-13 | 2019-08-16 | 浙江禾欣新材料有限公司 | A kind of preparation method for not losing thick and soft suction line super fiber leather |
| CN110205836A (en) * | 2019-05-13 | 2019-09-06 | 浙江禾欣新材料有限公司 | A kind of white shoes super fiber leather and preparation method thereof of resistance to vulcanization xanthochromia |
| CN113684693A (en) * | 2021-08-04 | 2021-11-23 | 安徽安利材料科技股份有限公司 | Polyurethane synthetic leather for regenerated fiber water-based electronic product and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130118A (en) * | 2019-05-13 | 2019-08-16 | 浙江禾欣新材料有限公司 | A kind of preparation method for not losing thick and soft suction line super fiber leather |
| CN110205836A (en) * | 2019-05-13 | 2019-09-06 | 浙江禾欣新材料有限公司 | A kind of white shoes super fiber leather and preparation method thereof of resistance to vulcanization xanthochromia |
| CN113684693A (en) * | 2021-08-04 | 2021-11-23 | 安徽安利材料科技股份有限公司 | Polyurethane synthetic leather for regenerated fiber water-based electronic product and preparation method thereof |
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