CN105053144A - Leather pickling technology - Google Patents
Leather pickling technology Download PDFInfo
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- CN105053144A CN105053144A CN201510445859.8A CN201510445859A CN105053144A CN 105053144 A CN105053144 A CN 105053144A CN 201510445859 A CN201510445859 A CN 201510445859A CN 105053144 A CN105053144 A CN 105053144A
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- liming
- enzyme
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- hide
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Abstract
The present invention relates to a leather pickling technology, which belongs to the technical field of leather processing. The liming composition used in the leather pickling technology comprises the following raw materials in mass percentage: liming enzyme Novi NUE 0.6MPX 0.05-0.15%, enzyme liming assistant XL 0.03-0.08%, alpha-amylase 0.02-0.06%, bating enzyme 0.01-0.03%, lime 2-6%, caustic soda 0.1-0.3%, glucose 0.05-0.2%, and softening water 200-300% with the total weight of a 15 cm * 15 cm leather as measurement. The leather pickling technology improves the quality of products, improves production efficiency, reduces the use amount of chemical products, reduces the pollution of the environment and groundwater, and at the same time also reduces the sewage generation amount and treatment costs.
Description
Technical field
The present invention relates to a kind of brined hide technique, belong to leather processing technology field.
Background technology
In the production process of Collagent casing for sausages, the treatment effect of cladding is most important.Basically, casing is exactly form with the collagenous fibres braiding in ox-hide, so the dispersion of collagenous fibres is the key factors in casing production.In traditional handicraft, the dispersion of collagenous fibres has been come by a large amount of liming, and the result of liming has following several situation: 1) rawhide shows as volumetric expansion in appearance, quality increases; 2) intracutaneous interfibrillar substance stripping, shrinkage temperature obviously reduces; 3) the change main manifestations of immanent structure character is the denaturation that elastomer, reticular fibre, collagenous fibres etc. are subject to a certain extent, increases between collagenous fibres with tropocollagen molecule chain spacing.After liming process terminates, also must carry out deliming cleaning by a large amount of clear water, finally also will complete the neutralization of cladding by pickling process and continue dispersion.Pickling with the consumption of grey alkali in acid cleaning process and acid solution of such cladding is all very many, causes very large pollution in processing procedure to environment and underground water; Simultaneously chemicals used in this course can destroy to some extent to the quality of cladding, exerts an adverse impact to follow-up casing quality, and this just all casing producers do not wish to see.
Summary of the invention
The object of this invention is to provide a kind of brined hide technique, which improve the quality of product, improve production efficiency, reduce the use amount of chemicals, decrease the pollution to environment and underground water, also reduce generation and the disposal cost of sewage simultaneously.
Described brined hide technique, brined hide liming composition used is made up of the raw material of following mass percentage: liming Zhu Mei Novi NUE0.6MPX0.05-0.15%, enzyme liming auxiliary agent XL0.03-0.08%, AMS 0.02-0.06%, macerating enzyme 0.01-0.03%, lime 2-6%, caustic soda 0.1-0.3%, glucose 0.05-0.2%, demineralized water 200-300%, measure with the gross weight of 15cm*15cm cladding.
Preferably, brined hide liming composition used is made up of the raw material of following mass percentage: liming Zhu Mei Novi NUE0.6MPX0.1%, enzyme liming auxiliary agent XL0.05%, AMS 0.05%, macerating enzyme 0.02%, lime 4%, caustic soda 0.2%, glucose 0.1%, demineralized water 250%, measures with the gross weight of 15cm*15cm cladding.
Described liming Zhu Mei Novi NUE0.6MPX and enzyme liming auxiliary agent XL belongs to alkali protease.
Described macerating enzyme is macerating enzyme NS or macerating enzyme GB.
Described brined hide technique is that cladding is put into rotary drum, then puts into described liming composition and floods cladding, temperature is 32-35 DEG C, rotary drum operation per hour 10-15 minute, dip time is 48-72 hour, finally with the standard that the total nitrogen of liming liquid and total sugar content terminate for process.
Facts have proved, the degree of scatter of collagenous fibres does not depend on the degrees of expansion of skin, but with the removing degree of interfibrillar substance and liming material to the peptization of collagen, namely in tropocollagen molecule and the destroyed degree of intermolecular connection or bonding relevant.Interfibrillar substance comprises albumin, globulin and mucinoid etc.The albumen such as albumin and globulin all removes than being easier in immersion, liming process; And mucinoid mainly hyaluronic acid and dermatan sulphate proteoglycan, wherein hyaluronic acid proteoglycan is not combined with collagen, and also than being easier to removing, the dermatan sulfate in cladding then combines with collagenous fibres, be wrapped in collagenous fibres surface, make fibres bond together.Dermatan sulfate can not remove in neutrality immersion liquid, then can remove major part by liming alkali and enzyme bating.
The present invention utilizes compound enzyme viability, effectively removes the interfibrillar substance of cladding, and wherein alkali protease can act on dermatan sulfate for liming, and make finished leather soft, intensity also increases to some extent; Polysaccharase AMS liming simultaneously also has important effect to the loose of collagen; AMS is used for exempt from liming leather making process and opens fibre bundle, compared with the multiple grey technique of traditional liming, the opening degree of fiber is suitable, this result by testing authentication in follow-up casing production testing.The present invention comprises the liming composition of complex enzyme by using, synergy is created between each composition, again by the control of technological parameter, lime use amount and other chemicals use amounts are reduced greatly, decrease the water for cleaning in subsequent production process, in the waste water produced, COD reduces by 54%, total solid reduces 50%, produce 1 ton of raw material skin to produce total sludge quantity and drop to 500kg from 1200kg, brined hide technique described in visible the application of the invention, significantly reduce sewage quantity, also a saving a large amount of sewage disposal expenses simultaneously.
Compared with prior art, the present invention has following beneficial effect:
(1) utilize advanced compound enzyme technology, improve product quality, improve production efficiency, reduce production cost;
(2) decrease lime and other chemicals use amounts, and then decrease the water for cleaning in subsequent production process;
(3) decrease the pollution to environment and underground water, also a saving a large amount of sewage disposal expenses simultaneously, reduce post processing cost, there is significant economic benefit and social benefit.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further illustrated, but it does not limit enforcement of the present invention.
Embodiment 1
Brined hide liming composition used is made up of the raw material of following mass percentage: liming Zhu Mei Novi NUE0.6MPX0.1%, enzyme liming auxiliary agent XL0.05%, AMS 0.05%, macerating enzyme 0.02%, lime 4%, caustic soda 0.2%, glucose 0.1%, demineralized water 250%, measures with the gross weight of 15cm*15cm cladding.
Cladding is put into rotary drum, and then put into described liming composition and flood cladding, temperature is 33 DEG C, rotary drum operation per hour 10 minutes, and dip time is 48 hours, finally with the standard that the total nitrogen of liming liquid and total sugar content terminate for process.
Embodiment 2
Brined hide liming composition used is made up of the raw material of following mass percentage: liming Zhu Mei Novi NUE0.6MPX0.05%, enzyme liming auxiliary agent XL0.03%, AMS 0.02%, macerating enzyme 0.01%, lime 2%, caustic soda 0.1%, glucose 0.05%, demineralized water 200%, measures with the gross weight of 15cm*15cm cladding.
Cladding is put into rotary drum, and then put into described liming composition and flood cladding, temperature is 32 DEG C, rotary drum operation per hour 15 minutes, and dip time is 72 hours, finally with the standard that the total nitrogen of liming liquid and total sugar content terminate for process.
Embodiment 3
Brined hide liming composition used is made up of the raw material of following mass percentage: liming Zhu Mei Novi NUE0.6MPX0.15%, enzyme liming auxiliary agent XL0.08%, AMS 0.06%, macerating enzyme 0.03%, lime 6%, caustic soda 0.3%, glucose 0.2%, demineralized water 300%, measures with the gross weight of 15cm*15cm cladding.
Cladding is put into rotary drum, and then put into described liming composition and flood cladding, temperature is 35 DEG C, rotary drum operation per hour 12 minutes, and dip time is 50 hours, finally with the standard that the total nitrogen of liming liquid and total sugar content terminate for process.
Embodiment 4
Brined hide liming composition used is made up of the raw material of following mass percentage: liming Zhu Mei Novi NUE0.6MPX0.1%, enzyme liming auxiliary agent XL0.06%, AMS 0.04%, macerating enzyme 0.02%, lime 5%, caustic soda 0.1%, glucose 0.15%, demineralized water 220%, measures with the gross weight of 15cm*15cm cladding.
Cladding is put into rotary drum, and then put into described liming composition and flood cladding, temperature is 35 DEG C, rotary drum operation per hour 10 minutes, and dip time is 60 hours, finally with the standard that the total nitrogen of liming liquid and total sugar content terminate for process.
Claims (4)
1. a brined hide technique, it is characterized in that: brined hide liming composition used is made up of the raw material of following mass percentage: liming Zhu Mei Novi NUE0.6MPX0.05-0.15%, enzyme liming auxiliary agent XL0.03-0.08%, AMS 0.02-0.06%, macerating enzyme 0.01-0.03%, lime 2-6%, caustic soda 0.1-0.3%, glucose 0.05-0.2%, demineralized water 200-300%, measure with the gross weight of 15cm*15cm cladding.
2. brined hide technique according to claim 1, it is characterized in that: brined hide liming composition used is made up of the raw material of following mass percentage: liming Zhu Mei Novi NUE0.6MPX0.1%, enzyme liming auxiliary agent XL0.05%, AMS 0.05%, macerating enzyme 0.02%, lime 4%, caustic soda 0.2%, glucose 0.1%, demineralized water 250%, measures with the gross weight of 15cm*15cm cladding.
3. brined hide technique according to claim 1, is characterized in that: macerating enzyme is macerating enzyme NS or macerating enzyme GB.
4. brined hide technique according to claim 1, is characterized in that: cladding is put into rotary drum, and then put into described liming composition and flood cladding, temperature is 32-35 DEG C, and rotary drum operation per hour 10-15 minute, dip time is 48-72 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510445859.8A CN105053144B (en) | 2015-07-24 | 2015-07-24 | Brined hide technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510445859.8A CN105053144B (en) | 2015-07-24 | 2015-07-24 | Brined hide technique |
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| CN105053144A true CN105053144A (en) | 2015-11-18 |
| CN105053144B CN105053144B (en) | 2017-12-01 |
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| CN201510445859.8A Active CN105053144B (en) | 2015-07-24 | 2015-07-24 | Brined hide technique |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106834564A (en) * | 2017-02-22 | 2017-06-13 | 陈顶凯 | Collagen skin technique |
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| CN101353707A (en) * | 2007-07-25 | 2009-01-28 | 余锦刚 | Improved method for solving all process defects before leather is pickled and use thereof |
| DE112007001827T5 (en) * | 2007-01-31 | 2009-05-20 | Council Of Scientific And Industrial Research | Improved procedure for hair removal and fiber removal of coat / skin |
| CN101760569A (en) * | 2008-12-25 | 2010-06-30 | 峰安皮业股份有限公司 | Leather making bio-pretreatment method |
| CN101946852A (en) * | 2010-09-02 | 2011-01-19 | 温州佩蒂宠物用品有限公司 | Collagenous fiber bonded leather and preparation method thereof |
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- 2015-07-24 CN CN201510445859.8A patent/CN105053144B/en active Active
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| DE112007001827T5 (en) * | 2007-01-31 | 2009-05-20 | Council Of Scientific And Industrial Research | Improved procedure for hair removal and fiber removal of coat / skin |
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| CN102517407A (en) * | 2011-11-28 | 2012-06-27 | 郑州科信化工有限公司 | Processing method of leather semi-finished product |
| CN103290149A (en) * | 2013-06-13 | 2013-09-11 | 浙江金鑫皮革有限公司 | Process for making goat upper leather |
| CN103525954A (en) * | 2013-10-28 | 2014-01-22 | 四川大学 | Immobilized composite unhairing enzyme with leather-making secondary waste as carrier and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106834564A (en) * | 2017-02-22 | 2017-06-13 | 陈顶凯 | Collagen skin technique |
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| CN105053144B (en) | 2017-12-01 |
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Effective date of registration: 20210331 Address after: No. 201, Zhangbei Road, Guoli Town, Huantai County, Zibo City, Shandong Province Patentee after: SHANDONG HEALTH BIOTECHNOLOGY Co.,Ltd. Address before: No. 201, Zhangbei Road, Guoli Town, Huantai County, Zibo City, Shandong Province Patentee before: ZIBO HUANGHELONG BIOENGINEERING Co.,Ltd. |
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Address after: No. 201, Zhangbei Road, Guoli Town, Huantai County, Zibo City, Shandong Province Patentee after: Shandong haios Biotechnology Co.,Ltd. Address before: No. 201, Zhangbei Road, Guoli Town, Huantai County, Zibo City, Shandong Province Patentee before: SHANDONG HEALTH BIOTECHNOLOGY CO.,LTD. |
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