CN105838829A - Environment-friendly leather retanning agent based on protein hydrolysate - Google Patents
Environment-friendly leather retanning agent based on protein hydrolysate Download PDFInfo
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- CN105838829A CN105838829A CN201610294691.XA CN201610294691A CN105838829A CN 105838829 A CN105838829 A CN 105838829A CN 201610294691 A CN201610294691 A CN 201610294691A CN 105838829 A CN105838829 A CN 105838829A
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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
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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
-
- 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 Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
An environment-friendly leather retanning agent based on protein hydrolysate is characterized by comprising, by weight, 1.2 kg of vegetable tannin, 0.8 kg of syntannin, 1.5 kg of acrylic polymers or polyacrylic ester aqueous dispersion, 5 kg of a glutaraldehyde aqueous solution, 2 kg of hydrolyzed collagen, 2 kg of hydrolyzed keratin powder, 0.2 kg of methacrylic acid, 0.5 kg of an emulsifying agent, and 0.1 kg of alpha-amyl cinnamaldehyde diethyl acetal. The environment-friendly leather retanning agent based on protein hydrolysate is simple in formula, and the technical method is prone to practical operation. When the environment-friendly leather retanning agent is used for retanning leather, the filling effect is good, the absorption rate for chromium is high, leather is plump, soft and elastic, the side abdomen portion is not loose in surface, and the environment-friendly leather retanning agent can be used independently for tanning and matched with other tanning agents for use. The retanned product has good leather fluffing performance and the color does not fade.
Description
Technical field
The present invention relates to leather processing technique field, be specifically related to a kind of environmental protection based on hydrolyzed protein
Leather composite tanning agent.
Background technology
The purpose of retanning is contemplated to obtain the leather of plentiful character and preferable outward appearance, and the most equal
Even consistent sense of touch, is beneficial to follow-up dyeing and currying.Retanning mainly uses syntans, plants
Thing tanning agent, aldehyde tanning agent and Polymer Tanning Agent.Although the leather after glutaraldehyde can make retanning has the most soft
Soft, but on market, fluoropolymer resin and esters of acrylic acid tanning agent increase quickly, come from them and have the strongest
Infiltration and dispersibility.On the contrary, vegetable tanning agent is complicated polyphenolic substance, various structures, they
It is to form hydrogen bond by their phenolic hydroxyl group with collagen functional group with protein bound.Other are used as retanning agent
Product be based on collagen and keratic hydrolyzate.The retanning effect of above-mentioned several retanning agent all needs
Improve.
Summary of the invention
The technical problem to be solved is to provide a kind of using effect good, and processing method is simple
Environmental protection leather composite tanning agent based on hydrolyzed protein.
The technical problem to be solved realizes by the following technical solutions:
A kind of environmental protection leather composite tanning agent based on hydrolyzed protein, is made up of the component of following weight: plant
Thing tannin 1.2kg, syntannin 0.8kg, acrylate copolymer or polyacrylate aqueous dispersions (PA)
1.5kg, glutaraldehyde water solution 5kg, hydrolytic collagen (HCP) 2kg, hydrolysis of keratin powder (HKP)
2kg, methacrylic acid 0.2kg, emulsifying agent 0.5kg, α amyl cinnamic aldehyde diethyl acetal 0.1kg；
Above-mentioned vegatable tannin selects Herba Mimosae Pudicae extract；
Aromatic sulfonic acid compound selected by above-mentioned syntannin；
The content 50% of glutaraldehyde in above-mentioned glutaraldehyde water solution；
Mentioned emulsifier is made up of the component of following weight: paraffin 0.2kg, palm wax 0.55kg, average
Add 0.25kg, water 9.25kg, modified kaolin 1.5kg；By adding modified kaolin so that preparation
Emulsifing wax has an advantage that particle diameter is tiny, good stability, viscosity are little, and emulsifing wax remaining after evaporation
Wax fusing point is high, hardness is big, anti-wear performance good.
The preparation method of mentioned emulsifier is: in paraffin and palm wax are added container, heating makes it melt,
Add emulsifying agent and modified kaolin when wax is smoldered, stop heating after to be emulsified dose of dissolving, stir,
It is again heated to boiling after instilling boiling water, after filtration, i.e. can get wax emulsion.The wax that emulsifying does not works is in cold water
Do not scatter, sink under water, otherwise, in cotton-shaped dispersion, then emulsifying 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 disintegrating apparatus is crushed, crosses 60 eye mesh screens,
It is then placed in nylon ball grinder, continuous ball milling 4-6 hour, crosses 80-120 eye mesh screen, collect and obtain powder
Stand-by；
(3) powder in step (2) is sent into low-temperature freezing facilities, low under-15 DEG C～-22 DEG C of environment
Temperature processes 4 hours, sends in microwave processing equipment by the powder after freezing the most again, in microwave frequency
Being spaced microwave treatment under 2450MHz, power 500W, interval time is 5 minutes, each microwave treatment 10 points
Clock, is carried out continuously 3-4 time；By freezing and microwave treatment, improve kaolinic stability, reduce it and glue
Property, and improve the amalgamation between other material；
(4) powder after the microwave treatment in step (3) is put in hot air drying equipment, at 78-82 DEG C
Under continuous drying 40-50 minute, take out i.e. obtain modified kaolin.
A kind of method utilizing above-mentioned Retanning Agent on Leather to carry out retanning, step is as follows:
(1) retanning
Will treat retanning leather send into rotary drum, add the water (water temperature 30 DEG C) of leather weight 200%, 0.1%
Formic acid, turn 20 minutes, discharge opeing；Add the water (water temperature 40 DEG C) of leather weight 150%, the first of 2%
Acid sodium, the sodium bicarbonate of 0.5% and the leather composite tanning agent of 2%, turn 90 minutes, discharge opeing；
(2) washing
Add the water (water temperature 50 DEG C) of leather weight 100%, the lecithin fatting agent of 8%, turn 40 minutes；
Add the formic acid of leather weight 1%, turn 15 minutes；Add the hydrolytic collagen and 4% of leather weight 4%
Protein hydrolysate powder, turn 40 minutes, discharge opeing；
Add the water (water temperature 50 DEG C) of leather weight 100%, turn 20 minutes；Add leather weight 1%
Formic acid, turns 20 minutes；
(3) go out drum, be dried, arrange.
The invention has the beneficial effects as follows: inventive formulation is simple, and process is prone to practical operation, is used for
The retanning of leather, not only filling effect is good, and high to chrome uptake rate, and finished leather is plentiful, soft, have
Elasticity, limit abdominal part not loose side, individually tanning other tanning agent also can be coordinated to use；The product of retanning has
Excellent buffing performance, does not loses colour, and the tensile strength and tearing strength for finished leather improves
Effect.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and effect and be readily apparent from
Solve, below in conjunction with specific embodiment, the present invention is expanded on further.
Embodiment 1
A kind of environmental protection leather composite tanning agent based on hydrolyzed protein, is made up of the component of following weight: contain
Shy grass extract 1.2kg, aromatic sulfonic acid compound 0.8kg, acrylate copolymer 1.5kg, glutaraldehyde water solution
5kg, hydrolytic collagen 2kg, hydrolysis of keratin powder 2kg, methacrylic acid 0.2kg, emulsifying agent 0.5kg,
α amyl cinnamic aldehyde diethyl acetal 0.1kg；
The content 50% of glutaraldehyde in above-mentioned glutaraldehyde water solution；
Utilizing the method that above-mentioned Retanning Agent on Leather carries out retanning, step is as follows:
(1) retanning
Will treat retanning leather send into rotary drum, add the water (water temperature 30 DEG C) of leather weight 200%, 0.1%
Formic acid, turn 20 minutes, discharge opeing；Add the water (water temperature 40 DEG C) of leather weight 150%, the first of 2%
Acid sodium, the sodium bicarbonate of 0.5% and the leather composite tanning agent of 2%, turn 90 minutes, discharge opeing；
(2) washing
Add the water (water temperature 50 DEG C) of leather weight 100%, the lecithin fatting agent of 8%, turn 40 minutes；
Add the formic acid of leather weight 1%, turn 15 minutes；Add the hydrolytic collagen and 4% of leather weight 4%
Protein hydrolysate powder, turn 40 minutes, discharge opeing；
Add the water (water temperature 50 DEG C) of leather weight 100%, turn 20 minutes；Add leather weight 1%
Formic acid, turns 20 minutes；
(3) go out drum, be dried, arrange.
Embodiment 2
A kind of environmental protection leather composite tanning agent based on hydrolyzed protein, is made up of the component of following weight: plant
Thing tannin 1.2kg, syntannin 0.8kg, acrylate copolymer or polyacrylate aqueous dispersions (PA)
1.5kg, glutaraldehyde water solution 5kg, hydrolytic collagen (HCP) 2kg, hydrolysis of keratin powder (HKP)
2kg, methacrylic acid 0.2kg, emulsifying agent 0.5kg, α amyl cinnamic aldehyde diethyl acetal 0.1kg；
Above-mentioned vegatable tannin selects Herba Mimosae Pudicae extract；Aromatic sulfonic acid compound selected by above-mentioned syntannin；On
State the content 50% of glutaraldehyde in glutaraldehyde water solution；
Utilizing the method that above-mentioned Retanning Agent on Leather carries out retanning, step is as follows:
(1) retanning
Will treat retanning leather send into rotary drum, add the water (water temperature 30 DEG C) of leather weight 200%, 0.1%
Formic acid, turn 20 minutes, discharge opeing；Add the water (water temperature 40 DEG C) of leather weight 150%, the first of 2%
Acid sodium, the sodium bicarbonate of 0.5% and the leather composite tanning agent of 2%, turn 90 minutes, discharge opeing；
(2) washing
Add the water (water temperature 50 DEG C) of leather weight 100%, the lecithin fatting agent of 8%, turn 40 minutes；
Add the formic acid of leather weight 1%, turn 15 minutes；Add the hydrolytic collagen and 4% of leather weight 4%
Protein hydrolysate powder, turn 40 minutes, discharge opeing；
Add the water (water temperature 50 DEG C) of leather weight 100%, turn 20 minutes；Add leather weight 1%
Formic acid, turns 20 minutes；
(3) go out drum, be dried, arrange.
Mentioned emulsifier is made up of the component of following weight: paraffin 0.2kg, palm wax 0.55kg, average
Add 0.25kg, water 9.25kg, modified kaolin 1.5kg；By adding modified kaolin so that preparation
Emulsifing wax has an advantage that particle diameter is tiny, good stability, viscosity are little, and emulsifing wax remaining after evaporation
Wax fusing point is high, hardness is big, anti-wear performance good.
The preparation method of mentioned emulsifier is: in paraffin and palm wax are added container, heating makes it melt,
Add emulsifying agent and modified kaolin when wax is smoldered, stop heating after to be emulsified dose of dissolving, stir,
It is again heated to boiling after instilling boiling water, after filtration, i.e. can get wax emulsion.The wax that emulsifying does not works is in cold water
Do not scatter, sink under water, otherwise, in cotton-shaped dispersion, then emulsifying 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 disintegrating apparatus is crushed, crosses 60 eye mesh screens,
It is then placed in nylon ball grinder, continuous ball milling 4-6 hour, crosses 80-120 eye mesh screen, collect and obtain powder
Stand-by；
(3) powder in step (2) is sent into low-temperature freezing facilities, low under-15 DEG C～-22 DEG C of environment
Temperature processes 4 hours, sends in microwave processing equipment by the powder after freezing the most again, in microwave frequency
Being spaced microwave treatment under 2450MHz, power 500W, interval time is 5 minutes, each microwave treatment 10 points
Clock, is carried out continuously 3-4 time；By freezing and microwave treatment, improve kaolinic stability, reduce it and glue
Property, and improve the amalgamation between other material；
(4) powder after the microwave treatment in step (3) is put in hot air drying equipment, at 78-82 DEG C
Under continuous drying 40-50 minute, take out i.e. obtain modified kaolin.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.One's own profession
Skilled person will appreciate that of industry, the present invention is not restricted to the described embodiments, above-described embodiment and explanation
The principle that the present invention is simply described described in book, without departing from the spirit and scope of the present invention,
The present invention also has various changes and modifications, and these changes and improvements both fall within claimed invention model
In enclosing.Claimed scope is defined by appending claims and equivalent thereof.
Claims (7)
1. the environmental protection leather composite tanning agent based on hydrolyzed protein, it is characterised in that by following weight
Component make: vegatable tannin 1.2kg, syntannin 0.8kg, acrylate copolymer or polyacrylate
Aqueous dispersions 1.5kg, glutaraldehyde water solution 5kg, hydrolytic collagen 2kg, hydrolysis of keratin powder 2kg,
Methacrylic acid 0.2kg, emulsifying agent 0.5kg, α amyl cinnamic aldehyde diethyl acetal 0.1kg.
Environmental protection leather composite tanning agent based on hydrolyzed protein the most according to claim 1, its feature
Being, above-mentioned vegatable tannin selects Herba Mimosae Pudicae extract.
Environmental protection leather composite tanning agent based on hydrolyzed protein the most according to claim 1, its feature
Being, aromatic sulfonic acid compound selected by above-mentioned syntannin.
Environmental protection leather composite tanning agent based on hydrolyzed protein the most according to claim 1, its feature
It is, the content 50% of glutaraldehyde in above-mentioned glutaraldehyde water solution.
Environmental protection leather composite tanning agent based on hydrolyzed protein the most according to claim 1, its feature
Being, mentioned emulsifier is made up of the component of following weight: paraffin 0.2kg, palm wax 0.55kg, flat
Put down and add 0.25kg, water 9.25kg, modified kaolin 1.5kg；
The preparation method of mentioned emulsifier is: in paraffin and palm wax are added container, heating makes it melt,
Add emulsifying agent and modified kaolin when wax is smoldered, stop heating after to be emulsified dose of dissolving, stir,
It is again heated to boiling after instilling boiling water, after filtration, i.e. can get wax emulsion.
Environmental protection leather composite tanning agent based on hydrolyzed protein the most according to claim 5, its feature
Being, 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 disintegrating apparatus is crushed, crosses 60 eye mesh screens,
It is then placed in nylon ball grinder, continuous ball milling 4-6 hour, crosses 80-120 eye mesh screen, collect and obtain powder
Stand-by；
(3) powder in step (2) is sent into low-temperature freezing facilities, low under-15 DEG C～-22 DEG C of environment
Temperature processes 4 hours, sends in microwave processing equipment by the powder after freezing the most again, in microwave frequency
Being spaced microwave treatment under 2450MHz, power 500W, interval time is 5 minutes, each microwave treatment 10 points
Clock, is carried out continuously 3-4 time；
(4) powder after the microwave treatment in step (3) is put in hot air drying equipment, at 78-82 DEG C
Under continuous drying 40-50 minute, take out i.e. obtain modified kaolin.
7. utilize the method that Retanning Agent on Leather described in any one of claim 1-6 carries out retanning, its
Being characterised by, step is as follows:
(1) retanning
The leather treating retanning is sent into rotary drum, adds the water of leather weight 200%, the formic acid of 0.1%, turn 20
Minute, discharge opeing；Add the water of leather weight 150%, the sodium formate of 2%, the sodium bicarbonate of 0.5% and 2%
Leather composite tanning agent, turns 90 minutes, discharge opeing；
(2) washing
Add the water of leather weight 100%, the lecithin fatting agent of 8%, turn 40 minutes；Add leather weight
The formic acid of amount 1%, turns 15 minutes；Add hydrolytic collagen and the protein hydrolysate powder of 4% of leather weight 4%,
Turn 40 minutes, discharge opeing；
Add the water of leather weight 100%, turn 20 minutes；Add the formic acid of leather weight 1%, turn 20
Minute；
(3) go out drum, be dried, arrange.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105838829A true CN105838829A (en) | 2016-08-10 |
| CN105838829B CN105838829B (en) | 2018-08-28 |
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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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108823336A (en) * | 2016-12-30 | 2018-11-16 | 丁永新 | Suitable for improving the leather composite tanning agent of leather wearability |
| CN109593898A (en) * | 2019-01-18 | 2019-04-09 | 陕西科技大学 | It is a kind of based on the biomass-based amphoteric retanning agent and preparation method thereof with reactivity |
Citations (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 |
| CN104232809A (en) * | 2014-08-30 | 2014-12-24 | 齐鲁工业大学 | Magnetic collagen modified anionic retanning agent and preparation method thereof |
-
2016
- 2016-05-03 CN CN201610294691.XA patent/CN105838829B/en active Active
Patent Citations (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 |
| CN104232809A (en) * | 2014-08-30 | 2014-12-24 | 齐鲁工业大学 | Magnetic collagen modified anionic retanning agent and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| MÍRIAM COOPER等: "以水解蛋白为基础的皮革复鞣剂", 《西部皮革》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108823336A (en) * | 2016-12-30 | 2018-11-16 | 丁永新 | Suitable for improving the leather composite tanning agent of leather wearability |
| CN109593898A (en) * | 2019-01-18 | 2019-04-09 | 陕西科技大学 | It is a kind of based on the biomass-based amphoteric retanning agent and preparation method thereof with reactivity |
| CN109593898B (en) * | 2019-01-18 | 2021-07-16 | 陕西科技大学 | Biomass-based reactive amphoteric retanning agent and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN105838829B (en) | 2018-08-28 |
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