CN105256086B - The waterproof leather of resistance to wet rubbing and its production method - Google Patents
The waterproof leather of resistance to wet rubbing and its production method Download PDFInfo
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- CN105256086B CN105256086B CN201510723874.4A CN201510723874A CN105256086B CN 105256086 B CN105256086 B CN 105256086B CN 201510723874 A CN201510723874 A CN 201510723874A CN 105256086 B CN105256086 B CN 105256086B
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Abstract
The present invention relates to a kind of waterproof leather of resistance to wet rubbing and its production method, belong to leather technology field.The production method of the waterproof leather of resistance to wet rubbing, comprises the following steps：The scytoblastema of wet-milling product of learning from else's experience workshop section, after drying, sequentially passes through primary coat, spraying, roller coat, presses, is drying to obtain the waterproof leather of resistance to wet rubbing；The present invention is improved by the handling process such as primary coat, spraying, roller coat, ironing, drying and the coating to being used in primary coat, spraying, roller coating, make obtained leather that there is excellent water proofing property and wet-rub resistance, while also having good wearability and resistance to tortuosity.
Description
Technical field
The invention belongs to leather technology field, and in particular to a kind of waterproof leather of resistance to wet rubbing and its production method.
Background technology
Leather, generally refer to through tanning, taw or with other method be prepared with gas permeability and flexible dynamic
Thing fur.
In recent years, the usage amount of leather rises year by year, is widely used on footwear, clothing, bag and various commodity, therefore right
The performance requirement of leather is also gradually stepped up.But because leather is during dress and use, surface easily produces or is infected with dirt
Dirt, in cleaning, unavoidably can using wet rubbing or other contain the leather cleaning agent of water, the poor leather of water proofing property makes for a long time
After with cleaning, just occur the phenomenons such as discoloration, cracking, the leather that especially wet-rub resistance can be poor, after multiple wet rubbing cleaning, gently
Person can cause the coating shedding of coating surface, and severe patient can make leather fission color.
Therefore the production method to leather is improved, to provide a kind of water proofing property and the good leather of wet-rub resistance.
The content of the invention
The invention aims to solve the deficiencies in the prior art, and provide a kind of water leather of resistance to wet rubbing and its producer
Method, the leather for producing in the method has good water proofing property and wet-rub resistance, meanwhile, also with good wearability.
The present invention is adopted the following technical scheme that：
The production method of the waterproof leather of resistance to wet rubbing, comprises the following steps：The scytoblastema of wet-milling product of learning from else's experience workshop section, after drying,
Primary coat, spraying are sequentially passed through, roller coat, pressed, be drying to obtain the waterproof leather of resistance to wet rubbing；
Wherein, the primary coat is：According to mass fraction meter, by 10-15 parts of modified polyorganosiloxane water-based emulsion, 25-30 parts
Aqueous anionic polyurethane dispersion liquid and 5-10 parts of aqueous nitrocellulose emulsion are sequentially added in 100-120 parts of water, are warming up to 30-35
DEG C, stir, with coating roller roller coating in scytoblastema surface, in toasting 20-25min at 60-70 DEG C；
The spraying is：According to mass fraction meter, by 20-25 parts of water-based acrylic resin dispersion liquid and 3-6 portions of aqueous egg
White matter bonding agent is added in 120-130 part of water, 20-25 DEG C of water temperature of holding, after stirring even application to above-mentioned through primary coat
Scytoblastema surface afterwards, in standing 1-2h at 40-50 DEG C；
The roller coat is：According to mass fraction meter, by 0.1-0.3 parts of water-soluble cross-linker, 20-30 portions of aqueous acrylamide yogurt
Liquid is sequentially added in 90-100 parts of water, and the back roller that stirs is applied to the above-mentioned scytoblastema surface through after spraying, in dry at 70-80 DEG C
30-50min；
The ironing is：By the scytoblastema after above-mentioned roller coat in ironing under 80-85 DEG C, 60-100bar pressure；
The drying is：By the scytoblastema after above-mentioned ironing in being stood at 25-35 DEG C, dry naturally, obtain final product the waterproof resistance to
Wet rubbing leather.
Further, the production method of the described waterproof leather of resistance to wet rubbing, wherein in the primary coat, modified polyorganosiloxane
The solid content of water-based emulsion is 50%, and the solid content of the aqueous anionic polyurethane dispersion liquid is 30-33%, and pH is 8-9, described
The solid content of aqueous nitrocellulose emulsion is 12.5%, and the primary coat amount is 5-6g/ square chis of scytoblastema.
Further, the production method of the described waterproof leather of resistance to wet rubbing, wherein in the spraying, water soluble acrylic acid tree
Fat disperses fluid solid content for 35%, pH is 7-8, and the solid content of the aqueous protein bonding agent is 18.5-20%, and pH is 9-10,
Proportion is 1.01-1.03g/cm3, viscosity is 800-4000cps, and the quantity for spray is 6-8g/ square chis of scytoblastema.
Further, the production method of the described waterproof leather of resistance to wet rubbing, wherein the roller coat is inverse roller coating, it is described
Roller coat amount is 10-15g/ square chis of scytoblastema, wherein the water-soluble cross-linker solid content is 50%, viscosity is 150cps.
The present invention also provides a kind of waterproof leather of resistance to wet rubbing.
Compared with prior art, its advantage is the present invention：The present invention passes through primary coat, spraying, roller coat, ironing, drying
Coating etc. handling process and to being used in primary coat, spraying, roller coating is improved, and obtained leather is had excellent water proofing property
And wet-rub resistance, while also having good wearability and resistance to tortuosity.
Specific embodiment
With reference to embodiment, the present invention is described in further detail.
It will be understood to those of skill in the art that the following example is merely to illustrate the present invention, and should not be regarded as limiting this hair
Bright scope.In the present invention, the modified polyorganosiloxane water-based emulsion model Melio WF-5238 are purchased from Clariant chemical industry
Co., Ltd, the aqueous anionic polyurethane dispersion liquid model Melio Promul62.A are limited purchased from Clariant chemical industry
Company, the aqueous nitrocellulose emulsion model WieMelio EW-D-330 are described aqueous purchased from Clariant Chemical Co., Ltd.
The model Melio Resin A-716-ID of acrylic resin dispersion liquid, it is described aqueous purchased from Clariant Chemical Co., Ltd.
Protein bonding agent model BI-1370, purchased from the fine coating Co., Ltd of this tal fibre, water-soluble cross-linker model XR-13-
436, purchased from the fine coating Co., Ltd of this tal fibre.
Embodiment 1
The production method of the waterproof leather of resistance to wet rubbing, comprises the following steps：The scytoblastema of wet-milling product of learning from else's experience workshop section, after drying,
Primary coat, spraying are sequentially passed through, roller coat, pressed, be drying to obtain the waterproof leather of resistance to wet rubbing；
Wherein, the primary coat is：According to mass fraction meter, by 13 parts of modified polyorganosiloxane water-based emulsions, 28 parts of aqueous the moon
Ion polyurethane dispersing liquid and 8 parts of aqueous nitrocellulose emulsions are sequentially added in 110 parts of water, are warming up to 32 DEG C, are stirred, with rolling
The roller coating of painting machine in scytoblastema surface, in toasting 20min at 65 DEG C, wherein, the solid content of modified polyorganosiloxane water-based emulsion is 50%,
The solid content of the aqueous anionic polyurethane dispersion liquid is 8 for 32%, pH, and the solid content of the aqueous nitrocellulose emulsion is
12.5%, the primary coat amount is 5.5g/ square chis of scytoblastema.
The spraying is：According to mass fraction meter, by 22 parts of water-based acrylic resin dispersion liquids and 4 parts of aqueous protein knots
Mixture is added in 125 parts of water, keeps 22 DEG C of water temperature, after stirring even application to the above-mentioned scytoblastema surface through after primary coat,
In standing 1.h at 45 DEG C, wherein, water-based acrylic resin dispersion fluid solid content is that 35%, pH is 7, the aqueous protein combination
The solid content of agent is 9 for 19%, pH, and proportion is 1.02g/cm3, viscosity is 2000cps, and the quantity for spray is 7g/ square chis of skin
Embryo；
The roller coat is：According to mass fraction meter, by 0.2 part of water-soluble cross-linker, 25 parts of aqueous acrylic emulsions successively
Add in 95 parts of water, the back roller that stirs is applied to the above-mentioned scytoblastema surface through after spraying, in drying 40min at 750 DEG C, wherein,
The roller coat is inverse roller coating, and the roller coat amount is 13g/ square chis of scytoblastema, wherein the water-soluble cross-linker solid content is
50%, viscosity is 150cps；
The ironing is：By the scytoblastema after above-mentioned roller coat in ironing under 83 DEG C, 80bar pressure；
The drying is：By the scytoblastema after above-mentioned ironing in being stood at 30 DEG C, dry naturally, obtain final product the resistance to wet rubbing of the waterproof
Leather.
Embodiment 2
The production method of the waterproof leather of resistance to wet rubbing, comprises the following steps：The scytoblastema of wet-milling product of learning from else's experience workshop section, after drying,
Primary coat, spraying are sequentially passed through, roller coat, pressed, be drying to obtain the waterproof leather of resistance to wet rubbing；
Wherein, the primary coat is：According to mass fraction meter, by 10 parts of modified polyorganosiloxane water-based emulsions, 25 parts of aqueous the moon
Ion polyurethane dispersing liquid and 5 parts of aqueous nitrocellulose emulsions are sequentially added in 100 parts of water, are warming up to 30 DEG C, are stirred, with rolling
The roller coating of painting machine in scytoblastema surface, in toasting 20min at 60 DEG C, wherein, the solid content of modified polyorganosiloxane water-based emulsion is 50%,
The solid content of the aqueous anionic polyurethane dispersion liquid is 8 for 30%, pH, and the solid content of the aqueous nitrocellulose emulsion is
12.5%, the primary coat amount is 5g/ square chis of scytoblastema.
The spraying is：According to mass fraction meter, by 20 parts of water-based acrylic resin dispersion liquids and 3 parts of aqueous protein knots
Mixture is added in 120 parts of water, keeps 20 DEG C of water temperature, after stirring even application to the above-mentioned scytoblastema surface through after primary coat,
In standing 1h at 40 DEG C, wherein, water-based acrylic resin dispersion fluid solid content is that 35%, pH is 7, the aqueous protein combination
The solid content of agent is 9 for 18.5%, pH, and proportion is 1.01g/cm3, viscosity is 800cps, and the quantity for spray is 6g/ square chis of skin
Embryo；
The roller coat is：According to mass fraction meter, by 0.1 part of water-soluble cross-linker, 20 parts of aqueous acrylic emulsions successively
Add in 90 parts of water, the back roller that stirs is applied to the above-mentioned scytoblastema surface through after spraying, in drying 30min at 70 DEG C, wherein, institute
Roller coat is stated for inverse roller coating, the roller coat amount is 10g/ square chis of scytoblastema, wherein the water-soluble cross-linker solid content is 50%,
Viscosity is 150cps；
The ironing is：By the scytoblastema after above-mentioned roller coat in ironing under 80 DEG C, 100bar pressure；
The drying is：By the scytoblastema after above-mentioned ironing in being stood at 25 DEG C, dry naturally, obtain final product the resistance to wet rubbing of the waterproof
Leather.
Embodiment 3
The production method of the waterproof leather of resistance to wet rubbing, comprises the following steps：The scytoblastema of wet-milling product of learning from else's experience workshop section, after drying,
Primary coat, spraying are sequentially passed through, roller coat, pressed, be drying to obtain the waterproof leather of resistance to wet rubbing；
Wherein, the primary coat is：According to mass fraction meter, by 15 parts of modified polyorganosiloxane water-based emulsions, 30 parts of aqueous the moon
Ion polyurethane dispersing liquid and 10 parts of aqueous nitrocellulose emulsions are sequentially added in 120 parts of water, are warming up to 35 DEG C, are stirred, and are used
Coating roller roller coating in scytoblastema surface, in toasting 25min at 70 DEG C, wherein, the solid content of modified polyorganosiloxane water-based emulsion is
50%, the solid content of the aqueous anionic polyurethane dispersion liquid is 9 for 33%, pH, the solid content of the aqueous nitrocellulose emulsion
It is 12.5%, the primary coat amount is 6g/ square chis of scytoblastema.
The spraying is：According to mass fraction meter, by 20-25 parts of water-based acrylic resin dispersion liquid and 6 parts of aqueous albumen
Matter bonding agent is added in 130 parts of water, keeps 25 DEG C of water temperature, and even application is to the above-mentioned scytoblastema table through after primary coat after stirring
Face, in standing 2h at 50 DEG C, wherein, water-based acrylic resin disperses fluid solid content for 35%, pH is 8, the aqueous protein knot
The solid content of mixture is 10 for 20%, pH, and proportion is 1.03g/cm3, viscosity is 4000cps, and the quantity for spray is 8g/ square chis
Scytoblastema；
The roller coat is：According to mass fraction meter, by 0.3 part of water-soluble cross-linker, 30 parts of aqueous acrylic emulsions successively
Add in 100 parts of water, the back roller that stirs is applied to the above-mentioned scytoblastema surface through after spraying, in drying 50min at 80 DEG C, wherein,
The roller coat is inverse roller coating, and the roller coat amount is 15g/ square chis of scytoblastema, wherein the water-soluble cross-linker solid content is
50%, viscosity is 150cps；
The ironing is：By the scytoblastema after above-mentioned roller coat in ironing under 85 DEG C, 60bar pressure；
The drying is：By the scytoblastema after above-mentioned ironing in being stood at 35 DEG C, dry naturally, obtain final product the resistance to wet rubbing of the waterproof
Leather.
Performance test is carried out to the gained of the embodiment of the present invention 1 to 3 leather, wherein water resistance tests the dynamic water-proof of leather
Property, tested according to GJB2589.14-96；Wet-rub resistance is carried out as follows：Test specimens skin is taken, 20cm long is wide
4cm, takes the byssus for being soaked with distilled water in advance, water content 100%, and with its friction testing sample skin, friction frequency is per minute 30
It is secondary, reciprocating friction 150 times, after by byssus at 50-60 DEG C dry, dried byssus is carried out with pollution with gray scales
Compare, visual byssus situation, result of determination：It is excellent：Color is not stayed on byssus, illustrates that leather wet-rub resistance can be excellent；It is good
It is good：Little color is left on byssus, illustrates that leather wet-rub resistance can be good；It is not good：Number of colors, explanation are left on byssus
Leather wet-rub resistance can not be good, and wearability mainly tests the unlubricated friction performance of leather, is tested with reference to GJB2589.8-96.
The performance test of table 1
As seen from the above table, the operations such as primary coat, spraying, roller coat, ironing, drying are carried out by leather, not only optimizes life
Production. art, is also improved coating, and the water proofing property and wet-rub resistance of leather has been effectively ensured, and enhances the wear-resisting of leather
Property.
It should be understood by those skilled in the art that, the present invention is not limited to the above embodiments, above-described embodiment and explanation
Merely illustrating the principles of the invention described in book, without departing from the spirit and scope of the present invention, the present invention also has
Various changes and modifications, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention
By appending claims and its equivalent thereof.
Claims (5)
1. the production method of the waterproof leather of resistance to wet rubbing, it is characterised in that comprise the following steps：The skin of wet-milling product of learning from else's experience workshop section
Embryo, after drying, sequentially passes through primary coat, spraying, roller coat, presses, is drying to obtain the waterproof leather of resistance to wet rubbing；
Wherein, the primary coat is：According to mass fraction meter, by 10-15 parts of modified polyorganosiloxane water-based emulsion, 25-30 parts it is aqueous
Anion polyurethane dispersion liquid and 5-10 parts of aqueous nitrocellulose emulsion are sequentially added in 100-120 parts of water, are warming up to 30-35 DEG C,
Stir, with coating roller roller coating in scytoblastema surface, in toasting 20-25min at 60-70 DEG C；
The spraying is：According to mass fraction meter, by 20-25 parts of water-based acrylic resin dispersion liquid and 3-6 parts of aqueous protein
Bonding agent is added in 120-130 part of water, 20-25 DEG C of water temperature of holding, after stirring even application to above-mentioned after primary coat
Scytoblastema surface, in standing 1-2h at 40-50 DEG C；
The roller coat is：According to mass fraction meter, by 0.1-0.3 parts of water-soluble cross-linker, 20-30 parts of aqueous acrylic emulsion according to
In secondary 90-100 parts of water of addition, the back roller that stirs is applied to the above-mentioned scytoblastema surface through after spraying, in drying 30- at 70-80 DEG C
50min；
The ironing is：By the scytoblastema after above-mentioned roller coat in ironing under 80-85 DEG C, 60-100bar pressure；
The drying is：By the scytoblastema after above-mentioned ironing in being stood at 25-35 DEG C, dry naturally, obtain final product the resistance to wet rubbing of the waterproof
Leather.
2. the production method of the waterproof leather of resistance to wet rubbing according to claim 1, it is characterised in that in the primary coat, is modified
The solid content of the aqueous emulsion of polysiloxanes is 50%, and the solid content of the aqueous anionic polyurethane dispersion liquid is 30-33%, and pH is
8-9, the solid content of the aqueous nitrocellulose emulsion is 12.5%, and the primary coat amount is 5-6g/ square chis of scytoblastema.
3. the production method of the waterproof leather of resistance to wet rubbing according to claim 1, it is characterised in that aqueous in the spraying
Acrylic resin disperses fluid solid content for 35%, pH is 7-8, and the solid content of the aqueous protein bonding agent is 18.5-20%, pH
It is 9-10, proportion is 1.01-1.03g/cm3, viscosity is 800-4000cps, and the quantity for spray is 6-8g/ square chis of scytoblastema.
4. the production method of the waterproof leather of resistance to wet rubbing according to claim 1, it is characterised in that the roller coat is reverse roller
Apply, the roller coat amount is 10-15g/ square chis of scytoblastema, wherein the water-soluble cross-linker solid content is 50%, viscosity is
150cps。
5. the waterproof leather of resistance to wet rubbing as obtained in the production method of the waterproof leather of resistance to wet rubbing described in claim 1.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106148579B (en) * | 2016-08-30 | 2019-10-25 | 晋江市永建皮革制品有限公司 | A kind of resistance to wet rubbing antibacterial leather and its manufacture craft |
| CN108166264B (en) * | 2017-12-22 | 2020-12-15 | 邳州恒翔生物制品有限公司 | A production line for sofa leather |
| CN108755156A (en) * | 2018-05-31 | 2018-11-06 | 安徽银河皮革有限公司 | Corrosion-resistant, the functional green leather production method of resistance to deformation |
| CN110774721A (en) * | 2019-11-13 | 2020-02-11 | 嘉善精田精密机械制造有限公司 | Processing method of cashmere leather cloth |
| CN112725545A (en) * | 2020-12-10 | 2021-04-30 | 兴业皮革科技股份有限公司 | Coating processing technology of imitation oil-ground sanded leather |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101993962A (en) * | 2009-08-27 | 2011-03-30 | 际华三五一五皮革皮鞋有限公司 | Method for manufacturing waterproof soft-surface leather |
| CN102690904A (en) * | 2011-03-21 | 2012-09-26 | 赣州华坚国际鞋城有限公司 | Leather surface coating and finishing process |
| CN103509893A (en) * | 2013-10-21 | 2014-01-15 | 晋江市香江皮革有限公司 | Production method for anti-fouling tensile leather |
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2015
- 2015-10-29 CN CN201510723874.4A patent/CN105256086B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101993962A (en) * | 2009-08-27 | 2011-03-30 | 际华三五一五皮革皮鞋有限公司 | Method for manufacturing waterproof soft-surface leather |
| CN102690904A (en) * | 2011-03-21 | 2012-09-26 | 赣州华坚国际鞋城有限公司 | Leather surface coating and finishing process |
| CN103509893A (en) * | 2013-10-21 | 2014-01-15 | 晋江市香江皮革有限公司 | Production method for anti-fouling tensile leather |
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