CN101270396A - Method for tanning hogskin suede-inverse clothing leather with non-chromium metalloid composite tanning agent - Google Patents
Method for tanning hogskin suede-inverse clothing leather with non-chromium metalloid composite tanning agent Download PDFInfo
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Abstract
The invention relates to a tanning method for pigskin suede garment leather by using chromium-free compound tanning agent, which comprises an acid enzymatic bating and a tanning procedure. The tanning procedure adopts LTA-1 type metal (chromium-free) compound tanning agent, chromium-free tanning mate D5 and tanning agent GM-15 etc. The method has the advantages that the shrinking temperature of leather industrialized production can reach over 90 DEG C; does not have pollution of chromium and phosphorus as well as release of formaldehyde; the fluff is short, dense, uniform and the difference on different part is small and superior to that of chrome leather; the method is more suitable for making white and light color leather than chrome leather; tannery sludge can directly incinerate and does not have potential hazard of hexvalent Chromium; the method does not require the special adjustment on process and material after tanning and has the good coordination with the existing leather technology. The invention can replace the leather tanning of traditional Chromium powder; eliminate the harm on human and the environmental pollution from Chromium salt generated from production process and leather making waste, and provide a novel pathway of producing no-Chromium leather for tanning enterprises.
Description
Technical field
The invention belongs to the leather tanning field, particularly relate to a kind of chrome-free tanning technology of hogskin suede-inverse 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 tanning agent 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 composite 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 but been brought after having eliminated pollution of chromium.
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 hogskin suede-inverse clothing leather, it adopts non-chromium metal tanning agent and organic tanning agent to carry out the complexing tanning according to a certain percentage, and finished product leather shrinkage temperature can be stabilized in more than 90 degree; Chrome-free, without phosphorus pollution, formaldehydeless release; Fine hair is short, thin, close, even, and the position difference is little; Be more suitable for doing white and light color leather than chrome tanned leather; Leather-making mud can directly burn, and does not have potential sexavalent chrome danger; Do not need tan back technology and material are carried out special adjustment, and now use the leather-making technology matching capacity good.
The technical scheme that the present invention is taked for achieving the above object is:
A kind of method with non-chromium metal composite tanning agent tanning hogskin suede-inverse clothing leather may further comprise the steps, wherein raw materials used meter by weight:
(1) acidicenzym is softening: the pickling pigskin water squeezing of conventional sheet alkali skin technology is weighed, and places in the rotary drum, and hide increases weight to 200%～250%, and weightening finish back material meter heavily is 100 parts in the rotary drum; Add concentration and be 50～80 parts of the normal temperature salt solution of 6～8 degree Beaume in rotary drum, adding formic acid, to regulate pH be 2.8～3.0, rotated 20～30 minutes; Add 0.05～0.4 part of acidicenzym again, rotated 120～240 minutes;
(2) tanning: add 5～10 parts of non-chromium metal composite tanning agents, 1.6～5.0 parts of no chrome tanning companion D5 rotated 60～180 minutes; Add 0.8～2.5 part of sharp tanning agent GM-15, rotated 240～120 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.0～4.0; Add 100～150 parts of 60 ℃ of hot water at last, temperature is 36 ℃～38 ℃ in keeping, and rotates 60 minutes; Spend the night, wash out drum next day.
In the tanning step:
Described non-chromium metal composite tanning agent is LTA-1 shaped metal (Chrome-free) composite tanning agent, and it is that a kind of non-chromium is main metal composite tanning agent with zirconium; The consumption of described non-chromium metal composite tanning agent is preferably 6～8 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 1/3～1/2 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 1/6～1/4 of a non-chromium metal composite tanning agent consumption.
Among the present invention:
(1) described LTA-1 metal (Chrome-free) composite tanning agent is based on zirconates, by adding the multiple chrome-free tanning agent that helps the material of tanning to form.Its technical indicator is as follows:
(1) outward appearance: pale yellow powder shape material;
(2) content (in zirconium dioxide): 〉=20.0% (w/w);
(3) calcination thing content (600 ℃ ± 5 ℃): 〉=70.0% (w/w).
(2) described no chrome tanning companion D5 is the special-purpose assorted material of LTA-1 shaped metal (Chrome-free) composite tanning agent, uses simultaneously with LTA-1 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: faint yellow transparent aqueous solution;
(2) charge type: anionic;
(3) solid content: (30.0 ± 2.0) % (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.
(3) sharp tanning agent GM-15 normally uses the special-purpose assorted material of developing for LTA-1 shaped metal (Chrome-free) composite tanning agent specially; When LTA-1 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 ± 2.0) % (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 LTA-1 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 tanning hogskin suede-inverse clothing leather, and the finished product leather is white, and its shrinkage temperature is stabilized in more than 90 ℃, leather hand feeling softness, plentiful, and grain is flat thin, can compare favourably with chrome tanned leather; Fine hair is short, thin, close, even, and the position difference is little, is better than chrome tanned leather.
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 leather tanning technology.
The back operation of tanning of the pig tanning that the present invention produces is good with existing leather-making technology system support, need not special tan back technology and material, 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
Acidicenzym is softening: the pickling pigskin water squeezing of conventional sheet alkali skin technology is weighed, and places in the rotary drum, and hide increases weight to 200%, and weightening finish back material meter heavily is 100 parts in the rotary drum; Add concentration and be 50 parts of the normal temperature salt solution of 6 degree Beaume in rotary drum, adding formic acid, to regulate pH be 2.8, rotated 20 minutes, adds 0.05 part of acidicenzym again, rotated 120 minutes.
Tanning: add 5 parts of LTA-1 shaped metals (Chrome-free) composite tanning agent, 1.66 parts of no chrome tanning companion D5 rotated 60 minutes; Add 0.8 part of sharp tanning agent GM-15, rotated 240 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.0; 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.
Embodiment 2
Acidicenzym is softening: the pickling pigskin water squeezing of conventional sheet alkali skin technology is weighed, and places in the rotary drum, and hide increases weight to 200%, and weightening finish back material meter heavily is 100 parts in the rotary drum; Add concentration and be 50 parts of the normal temperature salt solution of 6 degree Beaume in rotary drum, adding formic acid, to regulate pH be 2.8, rotated 20 minutes, adds 0.05 part of acidicenzym again, rotated 120 minutes.
Tanning: add 5 parts of LTA-1 shaped metals (Chrome-free) composite tanning agent, 2.5 parts of no chrome tanning companion D5 rotated 60 minutes; Add 1.25 parts of sharp tanning agent GM-15, rotated 240 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.0; 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.
Embodiment 3
Acidicenzym is softening: the pickling pigskin water squeezing of conventional sheet alkali skin technology is weighed, and places in the rotary drum, and hide increases weight to 200%, and weightening finish back material meter heavily is 100 parts in the rotary drum; Add concentration and be 50 parts of the normal temperature salt solution of 7 degree Beaume in rotary drum, adding formic acid, to regulate pH be 2.9, rotated 25 minutes, adds 0.05 part of acidicenzym again, rotated 120 minutes.
Tanning: add 7 parts of LTA-1 shaped metals (Chrome-free) composite tanning agent, 3.5 parts of no chrome tanning companion D5 rotated 120 minutes; Add 1.2 parts of sharp tanning agent GM-15, rotated 180 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.5; Add 125 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.
Embodiment 4
Acidicenzym is softening: the pickling pigskin water squeezing of conventional sheet alkali skin technology is weighed, and places in the rotary drum, and hide increases weight to 200%, and weightening finish back material meter heavily is 100 parts in the rotary drum; Add concentration and be 50 parts of the normal temperature salt solution of 7 degree Beaume in rotary drum, adding formic acid, to regulate pH be 2.9, rotated 25 minutes, adds 0.05 part of acidicenzym again, rotated 120 minutes.
Tanning: add 7 parts of LTA-1 shaped metals (Chrome-free) composite tanning agent, 2.3 parts of no chrome tanning companion D5 rotated 120 minutes; Add 1.75 parts of sharp tanning agent GM-15, rotated 180 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.5; Add 125 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.
Embodiment 5
Acidicenzym is softening: the pickling pigskin water squeezing of conventional sheet alkali skin technology is weighed, and places in the rotary drum, and hide increases weight to 200%, and weightening finish back material meter heavily is 100 parts in the rotary drum; Add concentration and be 50 parts of the normal temperature salt solution of 8 degree Beaume in rotary drum, adding formic acid, to regulate pH be 3.0, rotated 30 minutes, adds 0.05 part of acidicenzym again, rotated 120 minutes.
Tanning: add 10 parts of LTA-1 shaped metals (Chrome-free) composite tanning agent, 5.0 parts of no chrome tanning companion D5 rotated 180 minutes; Add 2.5 parts of sharp tanning agent GM-15, rotated 120 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 4.0; 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.
Embodiment 6
Acidicenzym is softening: the pickling pigskin water squeezing of conventional sheet alkali skin technology is weighed, and places in the rotary drum, and hide increases weight to 200%, and weightening finish back material meter heavily is 100 parts in the rotary drum; Add concentration and be 50 parts of the normal temperature salt solution of 8 degree Beaume in rotary drum, adding formic acid, to regulate pH be 3.0, rotated 30 minutes, adds 0.05 part of acidicenzym again, rotated 120 minutes.
Tanning: add 10 parts of LTA-1 shaped metals (Chrome-free) composite tanning agent, 3.3 parts of no chrome tanning companion D5 rotated 180 minutes; Add 1.66 parts of sharp tanning agent GM-15, rotated 120 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 4.0; 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.
Embodiment 7
Acidicenzym is softening: the pickling pigskin water squeezing of conventional sheet alkali skin technology is weighed, and places in the rotary drum, and hide increases weight to 225%, and weightening finish back material meter heavily is 100 parts in the rotary drum; Add concentration and be 75 parts of the normal temperature salt solution of 6 degree Beaume in rotary drum, adding formic acid, to regulate pH be 2.8, rotated 20 minutes, adds 0.2 part of acidicenzym again, rotated 180 minutes.
Tanning: add 5 parts of LTA-1 shaped metals (Chrome-free) composite tanning agent, 1.66 parts of no chrome tanning companion D5 rotated 60 minutes; Add 0.8 part of sharp tanning agent GM-15, rotated 240 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.0; 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.
Embodiment 8
Acidicenzym is softening: the pickling pigskin water squeezing of conventional sheet alkali skin technology is weighed, and places in the rotary drum, and hide increases weight to 225%, and weightening finish back material meter heavily is 100 parts in the rotary drum; Add concentration and be 75 parts of the normal temperature salt solution of 6 degree Beaume in rotary drum, adding formic acid, to regulate pH be 2.8, rotated 20 minutes, adds 0.2 part of acidicenzym again, rotated 180 minutes.
Tanning: add 5 parts of LTA-1 shaped metals (Chrome-free) composite tanning agent, 2.5 parts of no chrome tanning companion D5 rotated 60 minutes; Add 1.25 parts of sharp tanning agent GM-15, rotated 240 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.0; 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.
Embodiment 9
Acidicenzym is softening: the pickling pigskin water squeezing of conventional sheet alkali skin technology is weighed, and places in the rotary drum, and hide increases weight to 225%, and weightening finish back material meter heavily is 100 parts in the rotary drum; Add concentration and be 75 parts of the normal temperature salt solution of 7 degree Beaume in rotary drum, adding formic acid, to regulate pH be 2.9, rotated 25 minutes, adds 0.2 part of acidicenzym again, rotated 180 minutes.
Tanning: add 7 parts of LTA-1 shaped metals (Chrome-free) composite tanning agent, 3.5 parts of no chrome tanning companion D5 rotated 120 minutes; Add 1.2 parts of sharp tanning agent GM-15, rotated 180 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.5; Add 125 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.
Embodiment 10
Acidicenzym is softening: the pickling pigskin water squeezing of conventional sheet alkali skin technology is weighed, and places in the rotary drum, and hide increases weight to 225%, and weightening finish back material meter heavily is 100 parts in the rotary drum; Add concentration and be 75 parts of the normal temperature salt solution of 7 degree Beaume in rotary drum, adding formic acid, to regulate pH be 2.9, rotated 25 minutes, adds 0.2 part of acidicenzym again, rotated 180 minutes.
Tanning: add 7 parts of LTA-1 shaped metals (Chrome-free) composite tanning agent, 2.3 parts of no chrome tanning companion D5 rotated 120 minutes; Add 1.75 parts of sharp tanning agent GM-15, rotated 180 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.5; Add 125 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.
Embodiment 11
Acidicenzym is softening: the pickling pigskin water squeezing of conventional sheet alkali skin technology is weighed, and places in the rotary drum, and hide increases weight to 225%, and weightening finish back material meter heavily is 100 parts in the rotary drum; Add concentration and be 75 parts of the normal temperature salt solution of 8 degree Beaume in rotary drum, adding formic acid, to regulate pH be 3.0, rotated 30 minutes, adds 0.2 part of acidicenzym again, rotated 180 minutes.
Tanning: add 10 parts of LTA-1 shaped metals (Chrome-free) composite tanning agent, 5.0 parts of no chrome tanning companion D5 rotated 180 minutes; Add 2.5 parts of sharp tanning agent GM-15, rotated 120 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 4.0; 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.
Embodiment 12
Acidicenzym is softening: the pickling pigskin water squeezing of conventional sheet alkali skin technology is weighed, and places in the rotary drum, and hide increases weight to 225%, and weightening finish back material meter heavily is 100 parts in the rotary drum; Add concentration and be 75 parts of the normal temperature salt solution of 8 degree Beaume in rotary drum, adding formic acid, to regulate pH be 3.0, rotated 30 minutes, adds 0.2 part of acidicenzym again, rotated 180 minutes.
Tanning: add 10 parts of LTA-1 shaped metals (Chrome-free) composite tanning agent, 3.3 parts of no chrome tanning companion D5 rotated 180 minutes; Add 1.66 parts of sharp tanning agent GM-15, rotated 120 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 4.0; 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.
Embodiment 13
Acidicenzym is softening: the pickling pigskin water squeezing of conventional sheet alkali skin technology 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; Add concentration and be 80 parts of the normal temperature salt solution of 8 degree Beaume in rotary drum, adding formic acid, to regulate pH be 3.0, rotated 30 minutes, adds 0.4 part of acidicenzym again, rotated 240 minutes.
Tanning: add 10 parts of LTA-1 shaped metals (Chrome-free) composite tanning agent, 5.0 parts of no chrome tanning companion D5 rotated 180 minutes; Add 2.5 parts of sharp tanning agent GM-15, rotated 120 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 4.0; Add 150 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.
Embodiment 14
Acidicenzym is softening: the pickling pigskin water squeezing of conventional sheet alkali skin technology 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; Add concentration and be 80 parts of the normal temperature salt solution of 7 degree Beaume in rotary drum, adding formic acid, to regulate pH be 2.9, rotated 25 minutes, adds 0.4 part of acidicenzym again, rotated 240 minutes.
Tanning: add 10 parts of LTA-1 shaped metals (Chrome-free) composite tanning agent, 3.3 parts of no chrome tanning companion D5 rotated 180 minutes; Add 1.66 parts of sharp tanning agent GM-15, rotated 120 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 4.0; 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.
Embodiment 15
Acidicenzym is softening: the pickling pigskin water squeezing of conventional sheet alkali skin technology 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; Add concentration and be 80 parts of the normal temperature salt solution of 6 degree Beaume in rotary drum, adding formic acid, to regulate pH be 2.8, rotated 20 minutes, adds 0.4 part of acidicenzym again, rotated 240 minutes.
Tanning: add 7 parts of LTA-1 shaped metals (Chrome-free) composite tanning agent, 3.5 parts of no chrome tanning companion D5 rotated 120 minutes; Add 1.2 parts of sharp tanning agent GM-15, rotated 180 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.5; Add 125 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.
Embodiment 16
Acidicenzym is softening: the pickling pigskin water squeezing of conventional sheet alkali skin technology 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; Add concentration and be 80 parts of the normal temperature salt solution of 8 degree Beaume in rotary drum, adding formic acid, to regulate pH be 3.0, rotated 30 minutes, adds 0.4 part of acidicenzym again, rotated 240 minutes.
Tanning: add 7 parts of LTA-1 shaped metals (Chrome-free) composite tanning agent, 2.3 parts of no chrome tanning companion D5 rotated 120 minutes; Add 1.75 parts of sharp tanning agent GM-15, rotated 180 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.5; Add 125 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.
Embodiment 17
Acidicenzym is softening: the pickling pigskin water squeezing of conventional sheet alkali skin technology 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; Add concentration and be 80 parts of the normal temperature salt solution of 7 degree Beaume in rotary drum, adding formic acid, to regulate pH be 2.9, rotated 25 minutes, adds 0.4 part of acidicenzym again, rotated 240 minutes.
Tanning: add 5 parts of LTA-1 shaped metals (Chrome-free) composite tanning agent, 1.66 parts of no chrome tanning companion D5 rotated 60 minutes; Add 0.8 part of sharp tanning agent GM-15, rotated 240 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.0; Add 100 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.
Embodiment 18
Acidicenzym is softening: the pickling pigskin water squeezing of conventional sheet alkali skin technology 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; Add concentration and be 80 parts of the normal temperature salt solution of 8 degree Beaume in rotary drum, adding formic acid, to regulate pH be 3.0, rotated 30 minutes, adds 0.4 part of acidicenzym again, rotated 240 minutes.
Tanning: add 5 parts of LTA-1 shaped metals (Chrome-free) composite tanning agent, 2.5 parts of no chrome tanning companion D5 rotated 60 minutes; Add 1.25 parts of sharp tanning agent GM-15, rotated 240 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.0; Add 150 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.
Embodiment 19
Acidicenzym is softening: the pickling pigskin water squeezing of conventional sheet alkali skin technology is weighed, and places in the rotary drum, and hide increases weight to 220%, and weightening finish back material meter heavily is 100 parts in the rotary drum; Add concentration and be 60 parts of the normal temperature salt solution of 7 degree Beaume in rotary drum, adding formic acid, to regulate pH be 2.8, rotated 20 minutes, adds 0.2 part of acidicenzym again, rotated 180 minutes.
Tanning: add 6 parts of LTA-1 shaped metals (Chrome-free) composite tanning agent, 2 parts of no chrome tanning companion D5 rotated 120 minutes; Add 1.0 parts of sharp tanning agent GM-15, rotated 180 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.8; 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.
Claims (5)
1. the method with non-chromium metal composite tanning agent tanning hogskin suede-inverse clothing leather is characterized in that, may further comprise the steps, wherein raw materials used meter by weight:
(1) acidicenzym is softening: the pickling pigskin water squeezing of conventional sheet alkali skin technology is weighed, and places in the rotary drum, and hide increases weight to 200%～250%, and weightening finish back material meter heavily is 100 parts in the rotary drum; Add concentration and be 50～80 parts of the normal temperature salt solution of 6～8 degree Beaume in rotary drum, adding formic acid, to regulate pH be 2.8～3.0, rotated 20～30 minutes; Add 0.05～0.4 part of acidicenzym again, rotated 120～240 minutes;
(2) tanning: add 5～10 parts of non-chromium metal composite tanning agents, 1.6～5.0 parts of no chrome tanning companion D5 rotated 60～180 minutes; Add 0.8～2.5 part of sharp tanning agent GM-15, rotated 240～120 minutes; Add sodium bicarbonate again and carry alkali, regulating pH is 3.0～4.0; Add 100～150 parts of 60 ℃ of hot water at last, temperature is 36 ℃～38 ℃ in keeping, and rotates 60 minutes; Spend the night, wash out drum next day.
2. a kind of method with non-chromium metal composite tanning agent tanning hogskin suede-inverse clothing leather as claimed in claim 1 is characterized in that described non-chromium metal composite tanning agent is LTA-1 shaped metal (Chrome-free) composite tanning agent.
3. a kind of method with non-chromium metal composite tanning agent tanning hogskin suede-inverse clothing leather as claimed in claim 1 or 2 is characterized in that the consumption of described non-chromium metal composite tanning agent is 6～8 parts.
4. a kind of method as claimed in claim 1 or 2 with non-chromium metal composite tanning agent tanning hogskin suede-inverse clothing leather, it is characterized in that, the consumption of described no chrome tanning companion D5 is 1/3～1/2 of a non-chromium metal composite tanning agent consumption, and the consumption of described sharp tanning agent GM-15 is 1/6～1/4 of a non-chromium metal composite tanning agent consumption.
5. a kind of method as claimed in claim 3 with non-chromium metal composite tanning agent tanning hogskin suede-inverse clothing leather, it is characterized in that, the consumption of described no chrome tanning companion D5 is 1/3～1/2 of a non-chromium metal composite tanning agent consumption, and the consumption of described sharp tanning agent GM-15 is 1/6～1/4 of a non-chromium metal composite tanning agent consumption.
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| CNA2008100613359A CN101270396A (en) | 2008-04-22 | 2008-04-22 | Method for tanning hogskin suede-inverse clothing leather with non-chromium metalloid composite tanning agent |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106478957A (en) * | 2016-10-12 | 2017-03-08 | 温州大学 | The preparation method of keratin grafting water-based polyurethane polymer leather retanning packing material |
| CN109536649A (en) * | 2018-12-29 | 2019-03-29 | 峰安皮业股份有限公司 | A kind of production method of environment-friendly type waterproof mercerising suede |
| CN110799656A (en) * | 2017-06-26 | 2020-02-14 | 伊科斯克有限公司 | A process for tanning animal hides |
-
2008
- 2008-04-22 CN CNA2008100613359A patent/CN101270396A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106478957A (en) * | 2016-10-12 | 2017-03-08 | 温州大学 | The preparation method of keratin grafting water-based polyurethane polymer leather retanning packing material |
| 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 |
| CN109536649A (en) * | 2018-12-29 | 2019-03-29 | 峰安皮业股份有限公司 | A kind of production method of environment-friendly type waterproof mercerising suede |
| CN109536649B (en) * | 2018-12-29 | 2021-08-10 | 峰安皮业股份有限公司 | Manufacturing method of environment-friendly waterproof mercerized reverse suede leather |
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