CN101381782A - Method for tanning ultrathin sheepskin garment leather using non-chromium metal composite tanning agents - Google Patents
Method for tanning ultrathin sheepskin garment leather using non-chromium metal composite tanning agents Download PDFInfo
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- CN101381782A CN101381782A CNA2008101216243A CN200810121624A CN101381782A CN 101381782 A CN101381782 A CN 101381782A CN A2008101216243 A CNA2008101216243 A CN A2008101216243A CN 200810121624 A CN200810121624 A CN 200810121624A CN 101381782 A CN101381782 A CN 101381782A
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Abstract
The invention relates to a method for tanning ultrathin sheep clothing leather by a chrome-free metal composite tanning agent. The method comprises the steps of pretreatment, tanning and posttreatment; and the tanning process adopts an LTA-100 type metal (chrome-free) composite tanning agent, a chrome-free tanning additive D5, a tanning promoting agent GM-15 and the like. The method is characterized in that the leather in industrialized production has the thickness of between 0.2 and 0.4 millimeter and good strength; and the contraction temperature can reach over 90 DEG C; the leather has no pollution of chrome and phosphor, releases no formaldehyde, has rich coloration and is more suitable to be manufactured into white leather than chrome tanning leather; and sludge for manufacturing the leather can be directly incinerated and has no potential danger of hexavalent chromium. The method can substitute the tanning of the traditional chrome powder to the leather, simultaneously remove the pollution of production process and chrome salt in waste of a leather product to human and environment; and a finished product has good strength, thereby creating a new approach for producing the chrome-free tanning leather and the ultrathin clothing leather in a tannery.
Description
Technical field
The invention belongs to the leather tanning field, particularly relate to a kind of chrome-free tanning technology of ultra-thin sheep clothing leather.
Background technology
Have more than 100 year historical chrome tanning, can give the good performance of leather because of it is the mainstream technology of leather tanning always, almost can't shake.There is pollution problem in leather industry chromium to environment, and its source is three aspects: the first, and contain in the chromium material produce course of processing and pollute; The second, sewage, mud in the leather production, contain the chromium Solid Waste Pollution; The 3rd, contain chromium goods consumption back to second environmental pollution.This pollution is often ignored by people, but it but accounts for about 70% of whole leather industry pollution of chromium total amount, and suitable dispersion, is unfavorable for administering or reclaiming.Along with the progress of development of global economy and society, the enhancing of people's environmental consciousness and the scarcity of chromium resource, the handling problem of the pollution of chromium, the safety problem that wears the chromed tanned leather leather goods and discarded chromed tanned leather leather goods receives publicity day by day.
Common no chrome tanning technology come to be divided from tanning mechanism and is mainly contained three kinds, and a kind of is tannery based on aldehyde tannage, and typical products has (modification) glutaraldehyde, oxazolidine, tetra methylol phosphine (organophosphorus) etc.; A kind of is tannin extract class tanning agent; A kind of is other inorganic metal tanning agent.These three kinds of technology are in the suitability for industrialized production engineering of reality, and have following one or more problems: leather shrinking temperature can't be stabilized in more than 90 ℃; It is bigger that leather performance and chrome tanned leather are compared gap; Following process is poor, needs to change existing leather processing process system; Pollution problems such as organophosphorus, formaldehyde have been brought after having eliminated pollution of chromium.
In addition, chrome tanning and common no chrome tanning leather often occur when producing ultra-thin product that intensity is bad, whiteness not enough or have not anti-xanthochromic problem.
Summary of the invention
The objective of the invention is to provide at the deficiencies in the prior art a kind of chrome-free tanning technology of ultra-thin sheep clothing leather, be characterized in suitability for industrialized production leather thickness 0.2mm～0.4mm, intensity is good, and shrinkage temperature can reach more than 90 ℃; Chrome-free, without phosphorus pollution, formaldehydeless release; It is rich and gaudy to dye, and is more suitable for doing white than chrome tanned leather; Leather-making mud can directly burn, and does not have the danger of potential sexavalence lattice.
The technical scheme that the present invention is taked for achieving the above object is:
A kind of method with the ultra-thin sheep clothing leather of non-chromium metal composite tanning agent tanning may further comprise the steps, wherein raw materials used meter by weight:
(1) pre-treatment: conventional shaving pickling lamb skin is weighed, and places in the rotary drum, and hide increases weight to 250%～300%, and weightening finish back material meter heavily is 100 parts in the rotary drum; In rotary drum, add concentration and be 80～120 parts of the normal temperature salt solution of 8～10 degree Beaume, add 0.5～2.0 part of organic aldehyde tanning agent, rotated 60～180 minutes; Slight disacidify to pH be 3.0～3.2, rotated 20～30 minutes; Add 0.8～1.2 part of pretreating agent AT-6, rotated 30～60 minutes;
(2) tanning: add 8～16 parts of non-chromium metal composite tanning agents, 1.3～4.0 parts of no chrome tanning companion D5,0.7～2.0 part of sharp tanning agent GM-15 rotated 180～240 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.5～3.7; Add 100～150 parts of 60 ℃ of hot water then, temperature is 36 ℃～38 ℃ in keeping, and rotates 60 minutes; Spend the night, wash out drum next day;
(3) post-processed: a. water squeezing shaving, control thickness are 0.4mm～0.55mm; B. retanning stuffing and dyeing; C. dry arrangement; D. whitening, control thickness is 0.2mm～0.4mm; E. spray feel, fall soft; F. flatiron.
In the tanning step:
Described non-chromium metal composite tanning agent is LTA-100 shaped metal (Chrome-free) composite tanning agent, and it is the metal composite tanning agent of a kind of non-chromium based on zirconates; The consumption of described non-chromium metal composite tanning agent is preferably 12～16 parts.
Described no chrome tanning companion D5 is the mixture of multiple polycarboxylic acid compound; The consumption of described no chrome tanning companion D5 is 1/6～1/4 of a non-chromium metal composite tanning agent consumption.
Described sharp tanning agent GM-15 is for having the special molecular structure organic complexing agent; The consumption of described sharp tanning agent GM-15 is 1/12～1/8 of a non-chromium metal composite tanning agent consumption.
Among the present invention:
(1) described pretreating agent AT-6 is polynary amine weak cation organic compound, is the pre-treatment material of developing for LTA shaped metal (Chrome-free) composite tanning agent specially; Help to reduce the combination of chrome-free tanning agent, improve the specific absorption of later stage material simultaneously on the surface; Do not contain APEO and aldehyde material that EU Committee limits the use of.Its technical indicator is as follows:
(1) outward appearance: faint yellow transparent aqueous solution;
(2) charge type: cationic;
(3) solid content: 〉=35.0% (w/w);
(4) pH value (10% aqueous solution): 5.0～7.0;
(5) water-soluble: can be miscible with the normal-temperature water of arbitrary proportion.
(2) described LTA-100 metal (Chrome-free) composite tanning agent is based on zirconates, by adding multiple tan material and the made chrome-free tanning agent of special frost-resistant material of helping.Its technical indicator is as follows:
(1) outward appearance: light yellow transparent liquid;
(2) total solids: 〉=42.0% (w/w);
(3) non-chromium metal tanning agent content is (with ZrO
2Meter): (16.0 ± 2.0) % (w/w);
(4) content of 6-valence Cr ions is (with Cr
2O
3Meter):＜0.01% (w/w);
(5) total chrome content is (with Cr
2O
3Meter) :≤0.10% (w/w);
(6) iron oxide content is (with Fe
2O
3Meter) :≤0.10% (w/w);
(7) freeze-thaw stability (15 ℃, 72h): separate out, and do not freeze by no crystallization.
(3) described no chrome tanning companion D5 is the special-purpose assorted material of LTA shaped metal (Chrome-free) composite tanning agent, uses simultaneously with LTA shaped metal (Chrome-free) composite tanning agent; Help the infiltration of chrome-free tanning agent in leather, promote chrome-free tanning agent in leather, to be more evenly distributed; Use no chrome tanning companion D5 can make no chrome tanning grain side of leather more careful; Do not contain APEO and aldehyde material that EU Committee limits the use of.Its technical indicator is as follows:
(1) outward appearance: the yellow transparent aqueous solution;
(2) charge type: anionic;
(3) solid content: 〉=28.0% (w/w);
(4) pH value (10% aqueous solution): 4.0～7.0;
(5) water-soluble: can be miscible with the normal-temperature water of arbitrary proportion.
(4) sharp tanning agent GM-15 normally uses the special-purpose assorted material of developing for LTA shaped metal (Chrome-free) composite tanning agent specially; When LTA shaped metal (Chrome-free) composite tanning agent and no chrome tanning companion D5 adding after the basic infiltration evenly in leather, can play the effect with tanning agent complexing tanning, help to improve chrome-free tanning agent tanning effect, promote the raising of no chrome tanned leather shrinkage temperature; Can promote chrome-free tanning agent and leather to form firm combining; Do not contain APEO and aldehyde material that EU Committee limits the use of.Its technical indicator is as follows:
(1) outward appearance: little yellow transparent aqueous solution;
(2) charge type: anionic;
(3) solid content: 〉=35.0% (w/w);
(4) pH value (10% aqueous solution): 4.0～7.0;
(5) water-soluble: can be miscible with the normal-temperature water of arbitrary proportion.
Described pretreating agent AT-6, LTA-100 shaped metal (Chrome-free) composite tanning agent, no chrome tanning companion D5 and sharp tanning agent GM-15 develop by the Wenzhou University leather research institute and provide, and other chemical materialss can be bought on market.
The present invention is used for the ultra-thin sheep clothing leather of tanning, and tanbark is a white, and photostabilization is good, and color is rich and gaudy during dyeing, and intensity is good, is more suitable for doing ultra-thin leather than chrome tanned leather, and its shrinkage temperature is stabilized in more than 90 ℃, leather hand feeling softness, plentiful, and grain is flat thin.
There is not the pollution problem of organophosphorus, formaldehyde and chromium in this tannery, and material therefor does not have any qualification at People's Republic of China's integrated wastewater discharge standard (GB8978-1996), and leather-making mud can directly burn, and is a kind of eco-friendly process hides tannery.
Tanning back operation and the existing leather-making technology system support that the present invention produces the sheep tanning is good, need not special afterwards technology and the material of tanning, and possesses good factory industry production basis.
Embodiment
Below by embodiment the present invention is carried out concrete description; only be used for the present invention is further specified; can not be interpreted as the qualification to protection domain of the present invention, the technician in this field can make some nonessential improvement and adjustment to the present invention according to the content of foregoing invention.
Embodiment 1
(1) pre-treatment: conventional shaving pickling lamb skin is weighed, and places in the rotary drum, and hide increases weight to 250%, and weightening finish back material meter heavily is 100 parts in the rotary drum; In rotary drum, add concentration and be 80 parts of the normal temperature salt solution of 8 degree Beaume, add 0.5 part of organic aldehyde tanning agent, rotated 60 minutes; Slight disacidify to pH be 3.0, rotated 20 minutes; Add 0.8 part of pretreating agent AT-6, rotated 30 minutes;
(2) tanning: add 8 parts of non-chromium metal composite tanning agents, 1.3 parts of no chrome tanning companion D5,0.7 part of sharp tanning agent GM-15 rotated 180 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.5; Add 100 parts of 60 ℃ of hot water at last, temperature is 36 ℃ in keeping, and rotates 60 minutes; Spend the night, wash out drum next day;
(3) post-processed flow process: a. water squeezing shaving, control thickness are 0.4mm～0.55mm; B. retanning stuffing and dyeing; C. dry arrangement; D. whitening, control thickness is 0.2mm～0.4mm; E. spray feel, fall soft; F. flatiron.Get product.
Embodiment 2
(1) pre-treatment: conventional shaving pickling lamb skin is weighed, and places in the rotary drum, and hide increases weight to 250%, and weightening finish back material meter heavily is 100 parts in the rotary drum; In rotary drum, add concentration and be 80 parts of the normal temperature salt solution of 8 degree Beaume, add 0.5 part of organic aldehyde tanning agent, rotated 60 minutes; Slight disacidify to pH be 3.0, rotated 20 minutes; Add 0.8 part of pretreating agent AT-6, rotated 30 minutes;
(2) tanning: add 12 parts of non-chromium metal composite tanning agents, 2.6 parts of no chrome tanning companion D5,1.3 parts of sharp tanning agent GM-15 rotated 210 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.6; Add 120 parts of 60 ℃ of hot water at last, temperature is 37 ℃ in keeping, and rotates 60 minutes; Spend the night, wash out drum next day;
(3) post-processed flow process: a. water squeezing shaving, control thickness are 0.4mm～0.55mm; B. retanning stuffing and dyeing; C. dry arrangement; D. whitening, control thickness is 0.2mm～0.4mm; E. spray feel, fall soft; F. flatiron.Get product.
Embodiment 3
(1) pre-treatment: conventional shaving pickling lamb skin is weighed, and places in the rotary drum, and hide increases weight to 250%, and weightening finish back material meter heavily is 100 parts in the rotary drum; In rotary drum, add concentration and be 80 parts of the normal temperature salt solution of 8 degree Beaume, add 0.5 part of organic aldehyde tanning agent, rotated 60 minutes; Slight disacidify to pH be 3.0, rotated 20 minutes; Add 0.8 part of pretreating agent AT-6, rotated 30 minutes;
(2) tanning: add 16 parts of non-chromium metal composite tanning agents, 4.0 parts of no chrome tanning companion D5,2.0 parts of sharp tanning agent GM-15 rotated 240 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.7; Add 150 parts of 60 ℃ of hot water at last, temperature is 38 ℃ in keeping, and rotates 60 minutes; Spend the night, wash out drum next day;
(3) post-processed flow process: a. water squeezing shaving, control thickness are 0.4mm～0.55mm; B. retanning stuffing and dyeing; C. dry arrangement; D. whitening, control thickness is 0.2mm～0.4mm; E. spray feel, fall soft; F. flatiron.Get product.
Embodiment 4
(1) pre-treatment: conventional shaving pickling lamb skin is weighed, and places in the rotary drum, and hide increases weight to 280%, and weightening finish back material meter heavily is 100 parts in the rotary drum; In rotary drum, add concentration and be 100 parts of the normal temperature salt solution of 9 degree Beaume, add 1.3 parts of organic aldehyde tanning agents, rotated 120 minutes; Slight disacidify to pH be 3.1, rotated 25 minutes; Add 1.0 parts of pretreating agent AT-6, rotated 45 minutes;
(2) tanning: add 8 parts of non-chromium metal composite tanning agents, 1.3 parts of no chrome tanning companion D5,0.7 part of sharp tanning agent GM-15 rotated 180 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.5; Add 100 parts of 60 ℃ of hot water at last, temperature is 36 ℃ in keeping, and rotates 60 minutes; Spend the night, wash out drum next day;
(3) post-processed flow process: a. water squeezing shaving, control thickness are 0.4mm～0.55mm; B. retanning stuffing and dyeing; C. dry arrangement; D. whitening, control thickness is 0.2mm～0.4mm; E. spray feel, fall soft; F. flatiron.Get product.
Embodiment 5
(1) pre-treatment: conventional shaving pickling lamb skin is weighed, and places in the rotary drum, and hide increases weight to 280%, and weightening finish back material meter heavily is 100 parts in the rotary drum; In rotary drum, add concentration and be 100 parts of the normal temperature salt solution of 9 degree Beaume, add 1.3 parts of organic aldehyde tanning agents, rotated 120 minutes; Slight disacidify to pH be 3.1, rotated 25 minutes; Add 1.0 parts of pretreating agent AT-6, rotated 45 minutes;
(2) tanning: add 12 parts of non-chromium metal composite tanning agents, 2.6 parts of no chrome tanning companion D5,1.3 parts of sharp tanning agent GM-15 rotated 210 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.6; Add 120 parts of 60 ℃ of hot water at last, temperature is 37 ℃ in keeping, and rotates 60 minutes; Spend the night, wash out drum next day;
(3) post-processed flow process: a. water squeezing shaving, control thickness are 0.4mm～0.55mm; B. retanning stuffing and dyeing; C. dry arrangement; D. whitening, control thickness is 0.2mm～0.4mm; E. spray feel, fall soft; F. flatiron.Get product.
Embodiment 6
(1) pre-treatment: conventional shaving pickling lamb skin is weighed, and places in the rotary drum, and hide increases weight to 280%, and weightening finish back material meter heavily is 100 parts in the rotary drum; In rotary drum, add concentration and be 100 parts of the normal temperature salt solution of 9 degree Beaume, add 1.3 parts of organic aldehyde tanning agents, rotated 120 minutes; Slight disacidify to pH be 3.1, rotated 25 minutes; Add 1.0 parts of pretreating agent AT-6, rotated 45 minutes;
(2) tanning: add 16 parts of non-chromium metal composite tanning agents, 4.0 parts of no chrome tanning companion D5,2.0 parts of sharp tanning agent GM-15 rotated 240 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.6; Add 150 parts of 60 ℃ of hot water at last, temperature is 38 ℃ in keeping, and rotates 60 minutes; Spend the night, wash out drum next day;
(3) post-processed flow process: a. water squeezing shaving, control thickness are 0.4mm～0.55mm; B. retanning stuffing and dyeing; C. dry arrangement; D. whitening, control thickness is 0.2mm～0.4mm; E. spray feel, fall soft; F. flatiron.Get product.
Embodiment 7
(1) pre-treatment: conventional shaving pickling lamb skin is weighed, and places in the rotary drum, and hide increases weight to 300%, and weightening finish back material meter heavily is 100 parts in the rotary drum; In rotary drum, add concentration and be 120 parts of the normal temperature salt solution of 10 degree Beaume, add 2.0 parts of organic aldehyde tanning agents, rotated 180 minutes; Slight disacidify to pH be 3.2, rotated 30 minutes; Add 1.2 parts of pretreating agent AT-6, rotated 60 minutes;
(2) tanning: add 8 parts of non-chromium metal composite tanning agents, 1.3 parts of no chrome tanning companion D5,0.7 part of sharp tanning agent GM-15 rotated 180 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.5; Add 100 parts of 60 ℃ of hot water at last, temperature is 36 ℃ in keeping, and rotates 60 minutes; Spend the night, wash out drum next day;
(3) post-processed flow process: a. water squeezing shaving, control thickness are 0.4mm～0.55mm; B. retanning stuffing and dyeing; C. dry arrangement; D. whitening, control thickness is 0.2mm～0.4mm; E. spray feel, fall soft; F. flatiron.Get product.
Embodiment 8
(1) pre-treatment: conventional shaving pickling lamb skin is weighed, and places in the rotary drum, and hide increases weight to 300%, and weightening finish back material meter heavily is 100 parts in the rotary drum; In rotary drum, add concentration and be 120 parts of the normal temperature salt solution of 10 degree Beaume, add 2.0 parts of organic aldehyde tanning agents, rotated 180 minutes; Slight disacidify to pH be 3.2, rotated 30 minutes; Add 1.2 parts of pretreating agent AT-6, rotated 60 minutes;
(2) tanning: add 12 parts of non-chromium metal composite tanning agents, 2.6 parts of no chrome tanning companion D5,1.3 parts of sharp tanning agent GM-15 rotated 210 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.6; Add 120 parts of 60 ℃ of hot water at last, temperature is 37 ℃ in keeping, and rotates 60 minutes; Spend the night, wash out drum next day;
(3) post-processed flow process: a. water squeezing shaving, control thickness are 0.4mm～0.55mm; B. retanning stuffing and dyeing; C. dry arrangement; D. whitening, control thickness is 0.2mm～0.4mm; E. spray feel, fall soft; F. flatiron.Get product.
Embodiment 9
(1) pre-treatment: conventional shaving pickling lamb skin is weighed, and places in the rotary drum, and hide increases weight to 300%, and weightening finish back material meter heavily is 100 parts in the rotary drum; In rotary drum, add concentration and be 120 parts of the normal temperature salt solution of 10 degree Beaume, add 2.0 parts of organic aldehyde tanning agents, rotated 180 minutes; Slight disacidify to pH be 3.2, rotated 30 minutes; Add 1.2 parts of pretreating agent AT-6, rotated 60 minutes;
(2) tanning: add 16 parts of non-chromium metal composite tanning agents, 4.0 parts of no chrome tanning companion D5,2.0 parts of sharp tanning agent GM-15 rotated 240 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.6; Add 150 parts of 60 ℃ of hot water at last, temperature is 38 ℃ in keeping, and rotates 60 minutes; Spend the night, wash out drum next day;
(3) post-processed flow process: a. water squeezing shaving, control thickness are 0.4mm～0.55mm; B. retanning stuffing and dyeing; C. dry arrangement; D. whitening, control thickness is 0.2mm～0.4mm; E. spray feel, fall soft; F. flatiron.Get product.
Embodiment 10
(1) pre-treatment: conventional shaving pickling lamb skin is weighed, and places in the rotary drum, and hide increases weight to 300%, and weightening finish back material meter heavily is 100 parts in the rotary drum; In rotary drum, add concentration and be 100 parts of the normal temperature salt solution of 10 degree Beaume, add 2.0 parts of organic aldehyde tanning agents, rotated 120 minutes; Slight disacidify to pH be 3.2, rotated 30 minutes; Add 1.0 parts of pretreating agent AT-6, rotated 60 minutes;
(2) tanning: add 12 parts of non-chromium metal composite tanning agents, 3.0 parts of no chrome tanning companion D5,1.5 parts of sharp tanning agent GM-15 rotated 240 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.5; Add 120 parts of 60 ℃ of hot water at last, temperature is 38 ℃ in keeping, and rotates 60 minutes; Spend the night, wash out drum next day;
(3) post-processed flow process: a. water squeezing shaving, control thickness are 0.4mm～0.55mm; B. retanning stuffing and dyeing; C. dry arrangement; D. whitening, control thickness is 0.2mm～0.4mm; E. spray feel, fall soft; F. flatiron.Get product.
Claims (5)
1. the method with the ultra-thin sheep clothing leather of non-chromium metal composite tanning agent tanning is characterized in that, may further comprise the steps, wherein raw materials used meter by weight:
(1) pre-treatment: conventional shaving pickling lamb skin is weighed, and places in the rotary drum, and hide increases weight to 250%～300%, and weightening finish back material meter heavily is 100 parts in the rotary drum; In rotary drum, add concentration and be 80～120 parts of the normal temperature salt solution of 8～10 degree Beaume, add 0.5～2.0 part of organic aldehyde tanning agent, rotated 60～180 minutes; Slight disacidify to pH be 3.0～3.2, rotated 20～30 minutes; Add 0.8～1.2 part of pretreating agent AT-6, rotated 30～60 minutes;
(2) tanning: add 8～16 parts of non-chromium metal composite tanning agents, 1.3～4.0 parts of no chrome tanning companion D5,0.7～2.0 part of sharp tanning agent GM-15 rotated 180～240 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.5～3.7; Add 100～150 parts of 60 ℃ of hot water then, temperature is 36 ℃～38 ℃ in keeping, and rotates 60 minutes; Spend the night, wash out drum next day;
(3) post-processed: a. water squeezing shaving, control thickness are 0.4mm～0.55mm; B. retanning stuffing and dyeing; C. dry arrangement; D. whitening, control thickness is 0.2mm～0.4mm; E. spray feel, fall soft; F. flatiron.
2. a kind of method with the ultra-thin sheep clothing leather of non-chromium metal composite tanning agent tanning as claimed in claim 1 is characterized in that described non-chromium metal composite tanning agent is LTA-100 shaped metal (Chrome-free) composite tanning agent.
3. a kind of method with the ultra-thin sheep clothing leather of non-chromium metal composite tanning agent tanning as claimed in claim 1 or 2 is characterized in that the consumption of described non-chromium metal composite tanning agent is 10～12 parts.
4. a kind of method as claimed in claim 1 or 2 with the ultra-thin sheep clothing leather of non-chromium metal composite tanning agent tanning, it is characterized in that, the consumption of described no chrome tanning companion D5 is 1/6～1/4 of a non-chromium metal composite tanning agent consumption, and the consumption of described sharp tanning agent GM-15 is 1/12～1/8 of a non-chromium metal composite tanning agent consumption.
5. a kind of method as claimed in claim 3 with the ultra-thin sheep clothing leather of non-chromium metal composite tanning agent tanning, it is characterized in that, the consumption of described no chrome tanning companion D5 is 1/6～1/4 of a non-chromium metal composite tanning agent consumption, and the consumption of described sharp tanning agent GM-15 is 1/12～1/8 of a non-chromium metal composite tanning agent consumption.
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|---|---|---|---|
| CNA2008101216243A CN101381782A (en) | 2008-10-15 | 2008-10-15 | Method for tanning ultrathin sheepskin garment leather using non-chromium metal composite tanning agents |
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|---|---|---|---|
| CNA2008101216243A CN101381782A (en) | 2008-10-15 | 2008-10-15 | Method for tanning ultrathin sheepskin garment leather using non-chromium metal composite tanning agents |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102586508A (en) * | 2011-12-26 | 2012-07-18 | 河北东明牛皮制革有限公司 | Production method of leather for cow leather clothes |
| CN102864660A (en) * | 2012-09-29 | 2013-01-09 | 桐乡市雄鹰皮草有限公司 | Tanning and dyeing process for mink fur and leather |
| CN101649362B (en) * | 2009-08-28 | 2013-06-12 | 温州大学 | Leather retanning filling agent in branched structure and preparation method thereof |
| CN104561395A (en) * | 2014-11-25 | 2015-04-29 | 浙江中辉皮草有限公司 | Chromium-free tanning process for dyeing light colored furs |
| CN105950793A (en) * | 2016-06-01 | 2016-09-21 | 际华三五二皮革服装有限公司 | Production method of semi-vegetable tanning goat clothing leather |
| CN109439810A (en) * | 2018-11-01 | 2019-03-08 | 浙江中辉裘革科技有限公司 | Chrome-free poly-metals tanning agent prepares high-grade sheep clothes hair leather technique |
| CN110799656A (en) * | 2017-06-26 | 2020-02-14 | 伊科斯克有限公司 | A process for tanning animal hides |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101649362B (en) * | 2009-08-28 | 2013-06-12 | 温州大学 | Leather retanning filling agent in branched structure and preparation method thereof |
| CN102586508A (en) * | 2011-12-26 | 2012-07-18 | 河北东明牛皮制革有限公司 | Production method of leather for cow leather clothes |
| CN102586508B (en) * | 2011-12-26 | 2014-06-18 | 河北东明牛皮制革有限公司 | Production method of leather for cow leather clothes |
| CN102864660A (en) * | 2012-09-29 | 2013-01-09 | 桐乡市雄鹰皮草有限公司 | Tanning and dyeing process for mink fur and leather |
| CN102864660B (en) * | 2012-09-29 | 2014-04-02 | 桐乡市雄鹰皮草有限公司 | Tanning and dyeing process for mink fur and leather |
| CN104561395A (en) * | 2014-11-25 | 2015-04-29 | 浙江中辉皮草有限公司 | Chromium-free tanning process for dyeing light colored furs |
| CN105950793A (en) * | 2016-06-01 | 2016-09-21 | 际华三五二皮革服装有限公司 | Production method of semi-vegetable tanning goat clothing leather |
| CN105950793B (en) * | 2016-06-01 | 2018-01-19 | 际华三五一二皮革服装有限公司 | The preparation method of the vegetable tanning clothing leather of goat half |
| CN110799656A (en) * | 2017-06-26 | 2020-02-14 | 伊科斯克有限公司 | A process for tanning animal hides |
| CN110799656B (en) * | 2017-06-26 | 2022-12-16 | 伊科斯克有限公司 | A process for tanning animal hides |
| CN109439810A (en) * | 2018-11-01 | 2019-03-08 | 浙江中辉裘革科技有限公司 | Chrome-free poly-metals tanning agent prepares high-grade sheep clothes hair leather technique |
| CN109439810B (en) * | 2018-11-01 | 2021-07-06 | 浙江中辉裘革科技有限公司 | Process for preparing high-grade sheep garment fur leather by using chromium-free multi-metal tanning agent |
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