CN105838829B - Environmentally friendly leather composite tanning agent based on protein hydrolysate - Google Patents
Environmentally friendly leather composite tanning agent based on protein hydrolysate Download PDFInfo
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- CN105838829B CN105838829B CN201610294691.XA CN201610294691A CN105838829B CN 105838829 B CN105838829 B CN 105838829B CN 201610294691 A CN201610294691 A CN 201610294691A CN 105838829 B CN105838829 B CN 105838829B
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- 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
- C14C3/02—Chemical tanning
- C14C3/08—Chemical tanning by organic agents
- C14C3/22—Chemical tanning by organic agents using polymerisation products
-
- 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
- C14C3/02—Chemical tanning
- C14C3/08—Chemical tanning by organic agents
-
- 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
- C14C3/02—Chemical tanning
- C14C3/08—Chemical tanning by organic agents
- C14C3/10—Vegetable tanning
- C14C3/12—Vegetable tanning using purified or modified vegetable tanning agents
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
A kind of environmentally friendly leather composite tanning agent based on protein hydrolysate, which is characterized in that be made of the component of following weight：Vegatable tannin 1.2kg, syntannin 0.8kg, acrylate copolymer or polyacrylate aqueous dispersions 1.5kg, glutaraldehyde water solution 5kg, Hydrolyzed Collagen 2kg, hydrolysis of keratin powder 2kg, methacrylic acid 0.2kg, emulsifier 0.5kg, α amyl cinnamic aldehyde diethyl acetal 0.1kg.Inventive formulation is simple, and process is easy to practical operation, is used for the retanning of leather, and not only filling effect is good, and to the absorptivity of chromium height, finished leather is plentiful, soft, flexible, side abdomen not loose side, individually tanning other tanning agents also can be coordinated to use；The product of retanning has excellent buffing performance, does not lose colour.
Description
Technical field
The present invention relates to leather processing technique fields, and in particular to a kind of environmentally friendly leather retanning based on protein hydrolysate
Agent.
Background technology
The purpose of retanning is exactly the leather and ideal appearance in order to obtain plentiful property, and as uniform as possible
Sense of touch, in favor of subsequent dyeing and currying.Retanning mainly uses syntans, vegetable tanning agent, aldehyde tanning agent and polymer
Tanning agent.Although glutaraldehyde can make the leather after retanning have good flexibility, in the market fluoropolymer resin and acrylate
Class tanning agent increases quickly, has very strong infiltration and dispersibility derived from them.On the contrary, vegetable tanning agent is complicated polyphenol chemical combination
Object, various structures, it is to form hydrogen bond by their phenolic hydroxyl group and collagen functional group that they are combined with protein.Other are used as multiple
The product of tanning agent is the hydrolysate based on collagen and keratin.The retanning effect of above-mentioned several retanning agents is all to be improved.
Invention content
Technical problem to be solved by the present invention lies in providing, a kind of using effect is good, and processing method is simply to hydrolyze egg
Environmentally friendly leather composite tanning agent based on white.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of environmentally friendly leather composite tanning agent based on protein hydrolysate is made of the component of following weight：Vegatable tannin
1.2kg, syntannin 0.8kg, acrylate copolymer or polyacrylate aqueous dispersions (PA) 1.5kg, glutaraldehyde water solution
5kg, Hydrolyzed Collagen (HCP) 2kg, hydrolysis of keratin powder (HKP) 2kg, methacrylic acid 0.2kg, emulsifier 0.5kg, α-
Amyl cinnamic aldehyde diethyl acetal 0.1kg；
Above-mentioned vegatable tannin selects sensitive plant extract；
Above-mentioned syntannin selects aromatic sulfonic acid compound；
The content 50% of glutaraldehyde in above-mentioned glutaraldehyde water solution；
Mentioned emulsifier is made of the component of following weight：Paraffin 0.2kg, palm wax 0.55kg, peregal 0.25kg,
Water 9.25kg, modified kaolin 1.5kg；By the way that modified kaolin is added so that the emulsifying wax of preparation has grain size tiny, stable
Property good, advantage that viscosity is small, and the wax fusing point of emulsifying wax remaining after evaporation is high, hardness is big, wear-resisting property is good.
The preparation method of mentioned emulsifier is：Heating in container, which is added, in paraffin and palm wax makes its thawing, when wax is smoldered
When emulsifier and modified kaolin is added, stop heating after to be emulsified dose of dissolving, stir evenly, boiling is again heated to after instilling boiling water
It rises, wax emulsion is can be obtained after filtering.It emulsifies the wax not worked not scatter in cold water, sink under water, conversely, be in cotton-shaped dispersion,
Then emulsification is good.
The processing method of above-mentioned modified kaolin is as follows：
(1) kaolin starting material is weighed；
(2) raw material weighed in step (1) input crushing plant is crushed, crosses 60 mesh screens, is then placed in nylon
In ball grinder, continuous ball milling 4-6 hours crosses 80-120 mesh screens, and it is for use that collection obtains powder；
(3) powder in step (2) is sent into low-temperature freezing facilities, low-temperature treatment 4 is small under -15 DEG C~-22 DEG C environment
When, then the powder after freezing is sent into microwave processing equipment again, is spaced under microwave frequency 2450MHz, power 500W micro-
Wave processing, interval time are 5 minutes, and each microwave treatment 10 minutes is carried out continuously 3-4 times；By freezing and microwave treatment, carry
High kaolinic stability reduces its viscosity, and improves the amalgamation between other materials；
(4) powder after the microwave treatment in step (3) is put into heated-air drying equipment, is continuously done at 78-82 DEG C
It is 40-50 minutes dry, it takes out and obtains modified kaolin.
A method of retanning being carried out using above-mentioned Retanning Agent on Leather, steps are as follows：
(1) retanning
It will wait for that the leather of retanning is sent into rotary drum, the water (30 DEG C of water temperature) of leather weight 200%, 0.1% formic acid be added, turns
20 minutes, drain；Add water (40 DEG C of water temperature), 2% sodium formate, 0.5% sodium bicarbonate and 2% of leather weight 150%
Leather composite tanning agent, turn 90 minutes, drain；
(2) it washes
The water (50 DEG C of water temperature) of leather weight 100%, 8% lecithin fatting agent is added, turns 40 minutes；Add leather
The formic acid of weight 1% turns 15 minutes；The Hydrolyzed Collagen of leather weight 4% and 4% protein hydrolysate powder is added, turns 40 points
Clock, drain；
The water (50 DEG C of water temperature) of leather weight 100% is added, turns 20 minutes；The formic acid of leather weight 1% is added, turns 20
Minute；
(3) go out drum, dry, arrangement.
The beneficial effects of the invention are as follows：Inventive formulation is simple, and process is easy to practical operation, for answering for leather
Tan, not only filling effect is good, and to the absorptivity of chromium height, finished leather is plentiful, soft, flexible, and side abdomen not loose side can be independent
Tanning can also coordinate other tanning agents to use；The product of retanning has excellent buffing performance, does not lose colour, and for the anti-tensile of finished leather
Intensity and tearing strength improve effect.
Specific implementation mode
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below
Specific embodiment is closed, the present invention is further explained.
Embodiment 1
A kind of environmentally friendly leather composite tanning agent based on protein hydrolysate is made of the component of following weight：Sensitive plant is extracted
Object 1.2kg, aromatic sulfonic acid compound 0.8kg, acrylate copolymer 1.5kg, glutaraldehyde water solution 5kg, Hydrolyzed Collagen 2kg,
Hydrolysis of keratin powder 2kg, methacrylic acid 0.2kg, emulsifier 0.5kg, α amyl cinnamic aldehyde diethyl acetal 0.1kg；
The content 50% of glutaraldehyde in above-mentioned glutaraldehyde water solution；
The method for carrying out retanning using above-mentioned Retanning Agent on Leather, steps are as follows：
(1) retanning
It will wait for that the leather of retanning is sent into rotary drum, the water (30 DEG C of water temperature) of leather weight 200%, 0.1% formic acid be added, turns
20 minutes, drain；Add water (40 DEG C of water temperature), 2% sodium formate, 0.5% sodium bicarbonate and 2% of leather weight 150%
Leather composite tanning agent, turn 90 minutes, drain；
(2) it washes
The water (50 DEG C of water temperature) of leather weight 100%, 8% lecithin fatting agent is added, turns 40 minutes；Add leather
The formic acid of weight 1% turns 15 minutes；The Hydrolyzed Collagen of leather weight 4% and 4% protein hydrolysate powder is added, turns 40 points
Clock, drain；
The water (50 DEG C of water temperature) of leather weight 100% is added, turns 20 minutes；The formic acid of leather weight 1% is added, turns 20
Minute；
(3) go out drum, dry, arrangement.
Embodiment 2
A kind of environmentally friendly leather composite tanning agent based on protein hydrolysate is made of the component of following weight：Vegatable tannin
1.2kg, syntannin 0.8kg, acrylate copolymer or polyacrylate aqueous dispersions (PA) 1.5kg, glutaraldehyde water solution
5kg, Hydrolyzed Collagen (HCP) 2kg, hydrolysis of keratin powder (HKP) 2kg, methacrylic acid 0.2kg, emulsifier 0.5kg, α-
Amyl cinnamic aldehyde diethyl acetal 0.1kg；
Above-mentioned vegatable tannin selects sensitive plant extract；Above-mentioned syntannin selects aromatic sulfonic acid compound；Above-mentioned glutaraldehyde
The content 50% of glutaraldehyde in aqueous solution；
The method for carrying out retanning using above-mentioned Retanning Agent on Leather, steps are as follows：
(1) retanning
It will wait for that the leather of retanning is sent into rotary drum, the water (30 DEG C of water temperature) of leather weight 200%, 0.1% formic acid be added, turns
20 minutes, drain；Add water (40 DEG C of water temperature), 2% sodium formate, 0.5% sodium bicarbonate and 2% of leather weight 150%
Leather composite tanning agent, turn 90 minutes, drain；
(2) it washes
The water (50 DEG C of water temperature) of leather weight 100%, 8% lecithin fatting agent is added, turns 40 minutes；Add leather
The formic acid of weight 1% turns 15 minutes；The Hydrolyzed Collagen of leather weight 4% and 4% protein hydrolysate powder is added, turns 40 points
Clock, drain；
The water (50 DEG C of water temperature) of leather weight 100% is added, turns 20 minutes；The formic acid of leather weight 1% is added, turns 20
Minute；
(3) go out drum, dry, arrangement.
Mentioned emulsifier is made of the component of following weight：Paraffin 0.2kg, palm wax 0.55kg, peregal 0.25kg,
Water 9.25kg, modified kaolin 1.5kg；By the way that modified kaolin is added so that the emulsifying wax of preparation has grain size tiny, stable
Property good, advantage that viscosity is small, and the wax fusing point of emulsifying wax remaining after evaporation is high, hardness is big, wear-resisting property is good.
The preparation method of mentioned emulsifier is：Heating in container, which is added, in paraffin and palm wax makes its thawing, when wax is smoldered
When emulsifier and modified kaolin is added, stop heating after to be emulsified dose of dissolving, stir evenly, boiling is again heated to after instilling boiling water
It rises, wax emulsion is can be obtained after filtering.It emulsifies the wax not worked not scatter in cold water, sink under water, conversely, be in cotton-shaped dispersion,
Then emulsification is good.
The processing method of above-mentioned modified kaolin is as follows：
(1) kaolin starting material is weighed；
(2) raw material weighed in step (1) input crushing plant is crushed, crosses 60 mesh screens, is then placed in nylon
In ball grinder, continuous ball milling 4-6 hours crosses 80-120 mesh screens, and it is for use that collection obtains powder；
(3) powder in step (2) is sent into low-temperature freezing facilities, low-temperature treatment 4 is small under -15 DEG C~-22 DEG C environment
When, then the powder after freezing is sent into microwave processing equipment again, is spaced under microwave frequency 2450MHz, power 500W micro-
Wave processing, interval time are 5 minutes, and each microwave treatment 10 minutes is carried out continuously 3-4 times；By freezing and microwave treatment, carry
High kaolinic stability reduces its viscosity, and improves the amalgamation between other materials；
(4) powder after the microwave treatment in step (3) is put into heated-air drying equipment, is continuously done at 78-82 DEG C
It is 40-50 minutes dry, it takes out and obtains modified kaolin.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (1)
1. a kind of environmentally friendly leather composite tanning agent based on protein hydrolysate, which is characterized in that be made of the component of following weight：It plants
Object tannin 1.2kg, syntannin 0.8kg, acrylate copolymer or polyacrylate aqueous dispersions 1.5kg, glutaraldehyde water solution
5kg, Hydrolyzed Collagen 2kg, hydrolysis of keratin powder 2kg, methacrylic acid 0.2kg, emulsifier 0.5kg, α amyl cinnamic aldehyde two
Acetal 0.1kg；
Mentioned emulsifier is made of the component of following weight：Paraffin 0.2kg, palm wax 0.55kg, peregal 0.25kg, water
9.25kg, modified kaolin 1.5kg；
The preparation method of mentioned emulsifier is：Heating in container, which is added, in paraffin and palm wax makes its thawing, adds when wax is smoldered
Enter emulsifier and modified kaolin, stop heating after to be emulsified dose of dissolving, stir evenly, boiling is again heated to after instilling boiling water,
It can be obtained wax emulsion after filtering；
The processing method of above-mentioned modified kaolin is as follows：
(1) kaolin starting material is weighed；
(2) raw material weighed in step (1) input crushing plant is crushed, crosses 60 mesh screens, is then placed in nylon ball milling
In tank, continuous ball milling 4-6 hours crosses 80-120 mesh screens, and it is for use that collection obtains powder；
(3) by the powder feeding low-temperature freezing facilities in step (2), low-temperature treatment 4 hours under -15 DEG C~-22 DEG C environment, so
The powder after freezing is sent into microwave processing equipment again afterwards, is spaced at microwave under microwave frequency 2450MHz, power 500W
Reason, interval time are 5 minutes, and each microwave treatment 10 minutes is carried out continuously 3-4 times；
(4) powder after the microwave treatment in step (3) is put into heated-air drying equipment, the continuous drying 40- at 78-82 DEG C
It 50 minutes, takes out and obtains modified kaolin；
Above-mentioned vegatable tannin selects sensitive plant extract；
Above-mentioned syntannin selects aromatic sulfonic acid compound；
The content 50% of glutaraldehyde in above-mentioned glutaraldehyde water solution；
The method that retanning is carried out using above-mentioned Retanning Agent on Leather is as follows：
(1) retanning
It will wait for that the leather of retanning is sent into rotary drum, the water of leather weight 200%, 0.1% formic acid be added, turns 20 minutes, drain；Again
Be added the water of leather weight 150%, 2% sodium formate, 0.5% sodium bicarbonate and 2% leather composite tanning agent, turn 90 minutes, row
Liquid；
(2) it washes
The water of leather weight 100%, 8% lecithin fatting agent is added, turns 40 minutes；The formic acid of leather weight 1% is added,
Turn 15 minutes；The Hydrolyzed Collagen of leather weight 4% and 4% protein hydrolysate powder is added, turns 40 minutes, drain；
The water of leather weight 100% is added, is turned 20 minutes；The formic acid of leather weight 1% is added, is turned 20 minutes；
(3) go out drum, dry, arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610294691.XA CN105838829B (en) | 2016-05-03 | 2016-05-03 | Environmentally friendly leather composite tanning agent based on protein hydrolysate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610294691.XA CN105838829B (en) | 2016-05-03 | 2016-05-03 | Environmentally friendly leather composite tanning agent based on protein hydrolysate |
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| Publication Number | Publication Date |
|---|---|
| CN105838829A CN105838829A (en) | 2016-08-10 |
| CN105838829B true CN105838829B (en) | 2018-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610294691.XA Active CN105838829B (en) | 2016-05-03 | 2016-05-03 | Environmentally friendly leather composite tanning agent based on protein hydrolysate |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108823337A (en) * | 2016-12-30 | 2018-11-16 | 丁永新 | The preferable leather composite tanning agent of compatibility |
| CN109593898B (en) * | 2019-01-18 | 2021-07-16 | 陕西科技大学 | Biomass-based reactive amphoteric retanning agent and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3960481A (en) * | 1972-09-27 | 1976-06-01 | Thermanil Chemical Company, Incorporated | Process for tanning leather |
| CN104232809B (en) * | 2014-08-30 | 2016-04-13 | 齐鲁工业大学 | Collagen-modified negatively charged ion retanning agent of a kind of magnetic and preparation method thereof |
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