CN107385120A - A kind of water-proof environmental protection Process for producing leather - Google Patents
A kind of water-proof environmental protection Process for producing leather Download PDFInfo
- Publication number
- CN107385120A CN107385120A CN201710659552.7A CN201710659552A CN107385120A CN 107385120 A CN107385120 A CN 107385120A CN 201710659552 A CN201710659552 A CN 201710659552A CN 107385120 A CN107385120 A CN 107385120A
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- Prior art keywords
- water
- leather
- environmental protection
- weight
- protection process
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/02—Fleshing, unhairing, samming, stretching-out, setting-out, shaving, splitting, or skiving skins, hides, or leather
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C3/00—Tanning; Compositions for tanning
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C5/00—Degreasing leather
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C9/00—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
- C14C9/02—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes using fatty or oily materials, e.g. fat liquoring
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The present invention relates to leather production technical field, especially a kind of water-proof environmental protection Process for producing leather, it is characterised in that comprise the following steps：Preparatory process, soak deliming, in cutting, degreasing, and softening, tanning, arrangement；Water-proofing treatment, wash, go out drum, water squeezing stretching, extension, vacuum drying, moisture regain are shaken soft Waterproof leather.The environmentally friendly Process for producing leather that the present invention uses, can effectively reduce environmental pollution, and also add the waterproof ability of leather in addition, and simple production process is effective, has a good application prospect.
Description
Technical field
The present invention relates to leather production technical field, more particularly to a kind of water-proof environmental protection Process for producing leather.
Background technology
Leather is through the not perishable Animal Skin of denaturation obtained by physics, the chemical process such as depilation and tanning.Leather
It is made up of natural protein fibre in three dimensions close weave, there is a kind of special grain layer on its surface, has nature
Graining and gloss, comfortable feel.
During human evolution, it has been found that the juice or mineral oil of some plants have certain tan to leather
Property, raw material skin is by the immersion of juice, with more gas permeability, anti-corrosive properties.So that plate matter has softness, tear resistance, resistance to song
The physical and chemical performances such as folding endurance.The skin in this period just really possesses the characteristic of leather goods.And we term it tanning agent for this juice.
Curriery, which develops into eighties of last century mid-term and forms stable tanning agent, is roughly divided into following three class：
1. vegetable tanning agent：Mainly there is tannin extract, for industrial leather or bottom leather.
2. mineral tenning agent：Mainly there are chromic salts, aluminium salt, for various civilian leather.Such as clothes.
3. organic tanning agent：Mainly there are formaldehyde, glutaraldehyde etc., for fur fur and all kinds of thin miscellaneous skins.
Leather production of the prior art can not only cause largely to pollute, and manufactured leather does not have waterproof work(
Energy.
The content of the invention
Environmental pollution is serious, is unable to the shortcomings that waterproof the invention aims to solving to exist in the prior art, and carries
A kind of water-proof environmental protection Process for producing leather gone out.
To achieve these goals, present invention employs following technical scheme：
Design a kind of water-proof environmental protection Process for producing leather, it is characterised in that comprise the following steps：
S1：Preparatory process, it is concretely comprised the following steps：
A1：Soaked deliming, and dry hide or dry-salted hide are fixed using support, rinsed using flowing water, and immersion is added into water
Agent and basic species, raw material skin are needed to submerge in water completely, duration 8-10h, and immersion agent is mixed into water；
A2：In cutting, the rawhide after inundated intenerating is enclosed in semi-circular bracket, is wiped off with blade and is attached to the fat on kneading dough
Fat, residual meat；
A3：Degreasing, compound concentration are 1-3% soda ash solution, and degreasing is carried out to fur using saponification method；
A4：Softening, is softened using castor oil to fur；
S2：Tanning, arrangement；
S3：Water-proofing treatment, it is comprised the following steps that：
B1：It will be added in treated leather and account for leather weight 0.4-0.6% waterproof material and account for leather weight 3-5%
When polyacrylic acid derivative adjusts pH value to 5-8, the waterproof currying agent for accounting for leather weight 14-16% is added, rotates 2h；
B2：The fluorine element waterproofing agent for accounting for leather weight 5-7% is added, the formic acid for adding 2.5-3.5% adjusts pH value to 5-6
When, washing, change bath；
B3：When adjusting pH value to 4.5 with formic acid again, the trivalent metal salt for accounting for leather weight 4% is added, rotates 2h；
B4：Wash, go out drum, water squeezing stretching, extension, vacuum drying, moisture regain are shaken soft Waterproof leather.
Preferably, the immersion agent is quick lime.
Preferably, the basic species are flat stone with ropes attached at the sides sodium, hydrogenate the mixture of sodium raw materials and oxyammonia, flat stone with ropes attached at the sides in the basic species
The weight ratio for changing sodium, hydrogenation sodium raw materials and oxyammonia is 1：3：2.
Preferably, in order to not injure hair root in A2, when scraping can on semicircular support layer overlay thickness cloth.
Preferably, trivalent metal salt is FeCl3 in B3.
A kind of water-proof environmental protection Process for producing leather proposed by the present invention, beneficial effect are：The environmentally friendly skin that the present invention uses
Production technology is removed from office, can effectively reduce environmental pollution, also add the waterproof ability of leather in addition, and simple production process has
Effect, has a good application prospect.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.
Embodiment 1
A kind of water-proof environmental protection Process for producing leather, it is characterised in that comprise the following steps：
S1：Preparatory process, it is concretely comprised the following steps：
A1：Soaked deliming, and dry hide or dry-salted hide are fixed using support, rinsed using flowing water, and immersion is added into water
Agent and basic species, basic species are the mixture of flat stone with ropes attached at the sides sodium, hydrogenation sodium raw materials and oxyammonia, flat stone with ropes attached at the sides sodium, sodium hydride in basic species
The weight of raw material and oxyammonia ratio is 1：3：2, raw material skin is needed to submerge in water completely, duration 8h, and immersion is mixed into water
Agent, the immersion agent is quick lime；
A2：In cutting, the rawhide after inundated intenerating is enclosed in semi-circular bracket, is wiped off with blade and is attached to the fat on kneading dough
Fat, residual meat, in order to not injure hair root, when scraping can on semicircular support layer overlay thickness cloth.
A3：Degreasing, compound concentration are 1% soda ash solution, and degreasing is carried out to fur using saponification method；
A4：Softening, is softened using castor oil to fur；
S2：Tanning, arrangement；
S3：Water-proofing treatment, it is comprised the following steps that：
B1：It will be added in treated leather and account for the waterproof material of leather weight 0.4% and account for the polypropylene of leather weight 3%
When acid derivative adjusts pH value to 5, the waterproof currying agent for accounting for leather weight 14% is added, rotates 2h；
B2：Add and account for the fluorine element waterproofing agent of leather weight 5%, when adding 2.5% formic acid and adjusting pH value to 5, washing,
Change bath；
B3：When adjusting pH value to 4.5 with formic acid again, the trivalent metal salt for accounting for leather weight 4% is added, trivalent metal salt is
FeCl3, rotate 2h；
B4：Wash, go out drum, water squeezing stretching, extension, vacuum drying, moisture regain are shaken soft Waterproof leather.
Embodiment 2
A kind of water-proof environmental protection Process for producing leather, it is characterised in that comprise the following steps：
S1：Preparatory process, it is concretely comprised the following steps：
A1：Soaked deliming, and dry hide or dry-salted hide are fixed using support, rinsed using flowing water, and immersion is added into water
Agent and basic species, basic species are the mixture of flat stone with ropes attached at the sides sodium, hydrogenation sodium raw materials and oxyammonia, flat stone with ropes attached at the sides sodium, sodium hydride in basic species
The weight of raw material and oxyammonia ratio is 1：3：2, raw material skin is needed to submerge in water completely, duration 8.5h, and leaching is mixed into water
Aqua, the immersion agent is quick lime；
A2：In cutting, the rawhide after inundated intenerating is enclosed in semi-circular bracket, is wiped off with blade and is attached to the fat on kneading dough
Fat, residual meat, in order to not injure hair root, when scraping can on semicircular support layer overlay thickness cloth.
A3：Degreasing, compound concentration are 1.5% soda ash solution, and degreasing is carried out to fur using saponification method；
A4：Softening, is softened using castor oil to fur；
S2：Tanning, arrangement；
S3：Water-proofing treatment, it is comprised the following steps that：
B1：It will add to account for the waterproof material of leather weight 0.45% and account for leather weight 3.5% in treated leather and gather
When acrylic acid derivative adjusts pH value to 5.5, the waterproof currying agent for accounting for leather weight 14.5% is added, rotates 2h；
B2：Add and account for the fluorine element waterproofing agent of leather weight 6%, when adding 2.8% formic acid and adjusting pH value to 5.2, water
Wash, change bath；
B3：When adjusting pH value to 4.5 with formic acid again, the trivalent metal salt for accounting for leather weight 4% is added, trivalent metal salt is
FeCl3, rotate 2h；
B4：Wash, go out drum, water squeezing stretching, extension, vacuum drying, moisture regain are shaken soft Waterproof leather.
Embodiment 3
A kind of water-proof environmental protection Process for producing leather, it is characterised in that comprise the following steps：
S1：Preparatory process, it is concretely comprised the following steps：
A1：Soaked deliming, and dry hide or dry-salted hide are fixed using support, rinsed using flowing water, and immersion is added into water
Agent and basic species, basic species are the mixture of flat stone with ropes attached at the sides sodium, hydrogenation sodium raw materials and oxyammonia, flat stone with ropes attached at the sides sodium, sodium hydride in basic species
The weight of raw material and oxyammonia ratio is 1：3：2, raw material skin is needed to submerge in water completely, duration 9h, and immersion is mixed into water
Agent, the immersion agent is quick lime；
A2：In cutting, the rawhide after inundated intenerating is enclosed in semi-circular bracket, is wiped off with blade and is attached to the fat on kneading dough
Fat, residual meat, in order to not injure hair root, when scraping can on semicircular support layer overlay thickness cloth.
A3：Degreasing, compound concentration are 2% soda ash solution, and degreasing is carried out to fur using saponification method；
A4：Softening, is softened using castor oil to fur；
S2：Tanning, arrangement；
S3：Water-proofing treatment, it is comprised the following steps that：
B1：It will add to account for the waterproof material of leather weight 0.55% and account for leather weight 4.5% in treated leather and gather
When acrylic acid derivative adjusts pH value to 7, the waterproof currying agent for accounting for leather weight 15.5% is added, rotates 2h；
B2：Add and account for the fluorine element waterproofing agent of leather weight 6.5%, when adding 3.2% formic acid and adjusting pH value to 5.8, water
Wash, change bath；
B3：When adjusting pH value to 4.5 with formic acid again, the trivalent metal salt for accounting for leather weight 4% is added, trivalent metal salt is
FeCl3, rotate 2h；
B4：Wash, go out drum, water squeezing stretching, extension, vacuum drying, moisture regain are shaken soft Waterproof leather.
Embodiment 4
A kind of water-proof environmental protection Process for producing leather, it is characterised in that comprise the following steps：
S1：Preparatory process, it is concretely comprised the following steps：
A1：Soaked deliming, and dry hide or dry-salted hide are fixed using support, rinsed using flowing water, and immersion is added into water
Agent and basic species, basic species are the mixture of flat stone with ropes attached at the sides sodium, hydrogenation sodium raw materials and oxyammonia, flat stone with ropes attached at the sides sodium, sodium hydride in basic species
The weight of raw material and oxyammonia ratio is 1：3：2, raw material skin is needed to submerge in water completely, duration 10h, and leaching is mixed into water
Aqua, the immersion agent is quick lime；
A2：In cutting, the rawhide after inundated intenerating is enclosed in semi-circular bracket, is wiped off with blade and is attached to the fat on kneading dough
Fat, residual meat, in order to not injure hair root, when scraping can on semicircular support layer overlay thickness cloth.
A3：Degreasing, compound concentration are 3% soda ash solution, and degreasing is carried out to fur using saponification method；
A4：Softening, is softened using castor oil to fur；
S2：Tanning, arrangement；
S3：Water-proofing treatment, it is comprised the following steps that：
B1：It will be added in treated leather and account for the waterproof material of leather weight 0.6% and account for the polypropylene of leather weight 5%
When acid derivative adjusts pH value to 8, the waterproof currying agent for accounting for leather weight 16% is added, rotates 2h；
B2：Add and account for the fluorine element waterproofing agent of leather weight 7%, when adding 3.5% formic acid and adjusting pH value to 6, washing,
Change bath；
B3：When adjusting pH value to 4.5 with formic acid again, the trivalent metal salt for accounting for leather weight 4% is added, trivalent metal salt is
FeCl3, rotate 2h；
B4：Wash, go out drum, water squeezing stretching, extension, vacuum drying, moisture regain are shaken soft Waterproof leather.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (5)
1. a kind of water-proof environmental protection Process for producing leather, it is characterised in that comprise the following steps：
S1：Preparatory process, it is concretely comprised the following steps：
A1：Soak deliming, dry hide or dry-salted hide are fixed using support, rinsed using flowing water, and into water addition immersion agent and
Basic species, raw material skin are needed to submerge in water completely, duration 8-10h, and immersion agent is mixed into water；
A2：In cutting, the rawhide after inundated intenerating is enclosed in semi-circular bracket, wiped off with blade be attached to the fat on kneading dough,
Residual meat；
A3：Degreasing, compound concentration are 1-3% soda ash solution, and degreasing is carried out to fur using saponification method；
A4：Softening, is softened using castor oil to fur；
S2：Tanning, arrangement；
S3：Water-proofing treatment, it is comprised the following steps that：
B1：It will be added in treated leather and account for leather weight 0.4-0.6% waterproof material and account for leather weight 3-5% poly- third
When gadoleic acid derivative adjusts pH value to 5-8, the waterproof currying agent for accounting for leather weight 14-16% is added, rotates 2h；
B2：The fluorine element waterproofing agent for accounting for leather weight 5-7% is added, when adding 2.5-3.5% formic acid tune pH value to 5-6, water
Wash, change bath；
B3：When adjusting pH value to 4.5 with formic acid again, the trivalent metal salt for accounting for leather weight 4% is added, rotates 2h；
B4：Wash, go out drum, water squeezing stretching, extension, vacuum drying, moisture regain are shaken soft Waterproof leather.
A kind of 2. water-proof environmental protection Process for producing leather according to claim 1, it is characterised in that：The immersion agent is made a living stone
Ash.
A kind of 3. water-proof environmental protection Process for producing leather according to claim 1, it is characterised in that：The basic species are flat stone with ropes attached at the sides
The mixture of sodium, hydrogenation sodium raw materials and oxyammonia, the weight of flat stone with ropes attached at the sides sodium, hydrogenation sodium raw materials and oxyammonia in the basic species
Than for 1：3：2.
A kind of 4. water-proof environmental protection Process for producing leather according to claim 1, it is characterised in that：In order to not injure hair in A2
Root, when scraping can on semicircular support layer overlay thickness cloth.
A kind of 5. water-proof environmental protection Process for producing leather according to claim 1, it is characterised in that：Trivalent metal salt is in B3
FeCl3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710659552.7A CN107385120A (en) | 2017-08-04 | 2017-08-04 | A kind of water-proof environmental protection Process for producing leather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710659552.7A CN107385120A (en) | 2017-08-04 | 2017-08-04 | A kind of water-proof environmental protection Process for producing leather |
Publications (1)
| Publication Number | Publication Date |
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| CN107385120A true CN107385120A (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710659552.7A Pending CN107385120A (en) | 2017-08-04 | 2017-08-04 | A kind of water-proof environmental protection Process for producing leather |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112725548A (en) * | 2020-12-07 | 2021-04-30 | 天津天星科生皮革制品有限公司 | Processing method of leather product |
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 |
| CN104152597A (en) * | 2014-08-22 | 2014-11-19 | 北京泛博科技有限责任公司 | Fur machining method |
| CN104531915A (en) * | 2014-12-17 | 2015-04-22 | 广东菲安妮皮具股份有限公司 | Method for processing cowhide leather |
-
2017
- 2017-08-04 CN CN201710659552.7A patent/CN107385120A/en active Pending
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 |
| CN104152597A (en) * | 2014-08-22 | 2014-11-19 | 北京泛博科技有限责任公司 | Fur machining method |
| CN104531915A (en) * | 2014-12-17 | 2015-04-22 | 广东菲安妮皮具股份有限公司 | Method for processing cowhide leather |
Non-Patent Citations (3)
| Title |
|---|
| 中国医学百科全书编辑委员会: "《中国医学百科全书 公共卫生工程学》", 31 October 1986, 上海科学技术出版社 * |
| 孙晓红: "《水化学》", 31 August 2002, 中国农业出版社 * |
| 张杨，魏彦飞: "我国皮革制作工艺的研究进展", 《现代农业科学》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112725548A (en) * | 2020-12-07 | 2021-04-30 | 天津天星科生皮革制品有限公司 | Processing method of leather product |
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Application publication date: 20171124 |
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