CN104862429B - Method for retanning wet blue goat shoe upper leather by using water-borne epoxy resin - Google Patents
Method for retanning wet blue goat shoe upper leather by using water-borne epoxy resin Download PDFInfo
- Publication number
- CN104862429B CN104862429B CN201510269579.6A CN201510269579A CN104862429B CN 104862429 B CN104862429 B CN 104862429B CN 201510269579 A CN201510269579 A CN 201510269579A CN 104862429 B CN104862429 B CN 104862429B
- Authority
- CN
- China
- Prior art keywords
- water
- retanning
- epoxy resin
- added
- blue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
- C14C1/00—Chemical treatment prior to tanning
- C14C1/08—Deliming; Bating; Pickling; Degreasing
-
- 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
Landscapes
- 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
The invention relates to a method for retanning wet blue goat shoe upper leather by using water-borne epoxy resin, and aims to solve the problems that the existing retanning for the wet blue goat shoe upper leather mainly adopts the conventional chromium retanning process, chromium powder remaining in waste liquor causes resource waste and serious environmental pollution and directly affects the human living environment, and the traditional epoxy resin mainly adopts solvent type, can release large quantity of organic pollutants in the use process and pollutes the environment. The method comprises the following steps: blue leather is weighed, water is added, the water temperature is adjusted, and a degreasing agent and a rewetting agent are added for water return; water is added again, sodium bicarbonate is added to regulate pH, the water-borne epoxy resin is added, then formic acid is added to regulate the pH, and retanning is finished. The water-borne epoxy resin can be applied to a retanning process for the wet blue goat shoe upper leather, the shrinkage temperature of the wet blue leather is higher than 120 DEG C, the thickening rate reaches 22%, residual chromium in wastewater can be reduced, and pollution caused by the organic pollutants due to the use of the traditional epoxy resin is avoided simultaneously.
Description
Technical field
The invention belongs to goat wet blue retanning Technology field, and in particular to a kind of aqueous epoxy resins retanning goat indigo plant is wet
The method of leather shoes upper leather.
Background technology
China leather shoes annual production about 2,400,000,000 pairs, accounts for the 40% of global leather shoes total output, and wherein goat shoe upper leather is leather shoes life
Produce and use extensive class material.The manufacture of goat shoe upper leather in the market is still based on conventional chrome retanned technique.System
In leather production, because the absorbance of chromium powder is low, therefore substantial amounts of chromium powder remained in waste liquid, has both wasted resource, and environment is made
Into serious pollution, the living environment of the mankind is directly affected again.Additionally, traditional epoxy resin is mostly solvent type,
Substantial amounts of organic pollution can be discharged in use, to environment.As people are recognized contamination hazard
Go deep into, " cleanly production " idea is increasingly paid attention to, and pollution problem present in leather industry is in the urgent need to address.Mesh
Before, the research in terms of epoxy resin tanning agent is attracted attention, but it is relevant using aqueous epoxy resins as system
Leather retanning agent application is also rarely reported.
The content of the invention
It is an object of the invention to provide a kind of method of aqueous epoxy resins retanning goat wet blue upper leather, reduces chromium powder
Residual in waste liquid, while avoiding the Organic Pollution caused using conventional epoxies.
The technical solution adopted in the present invention is：
The method of aqueous epoxy resins retanning goat wet blue upper leather, it is characterised in that：
Realized by following steps：
Blue skin is weighed, and weightening 50% carries out following operation as measurement basis in rotary drum：
Backwater：The water of blue tare weight amount 100% after weightening is weighed, it is 35 DEG C to adjust water temperature；Add degreasing agent 0.3%, rewetting simultaneously
Agent 0.5%；
Retanning：Weigh the water of blue tare weight amount 100% after weightening；Sodium bicarbonate is added, regulation pH is 4.5-6.0；Add aqueouss ring
Oxygen tree fat 4%-12%, turns 60-150 minutes；Again plus formic acid, pH is adjusted：3.0-5.0.
The degreasing agent chooses TJ-A124；
WT-H is chosen in the rewetting agent.
The present invention has advantages below：
Present invention aqueous epoxy resins process goat wet blue upper leather, and more than 120 DEG C of the shrinkage temperature of wet blue increases
Thick rate has certain retanning effect to collagen up to 22%.It is residual in waste liquid that the present invention can reduce chromium powder
Stay, while avoiding the Organic Pollution caused using conventional epoxies, be conducive to cleaner leather-making, promote holding for industry
Supervention exhibition.
Specific embodiment
With reference to specific embodiment, the present invention will be described in detail.
The method of aqueous epoxy resins retanning goat wet blue upper leather according to the present invention, it is characterised in that：
Realized by following steps：
Blue skin is weighed, and weightening 50% carries out following operation as measurement basis in rotary drum：
Backwater：The water of blue tare weight amount 100% after weightening is weighed, it is 35 DEG C to adjust water temperature；Add degreasing agent 0.3%, rewetting simultaneously
Agent 0.5%；
Retanning：Weigh the water of blue tare weight amount 100% after weightening；Sodium bicarbonate is added, regulation pH is 4.5-6.0；Add aqueouss ring
Oxygen tree fat 4%-12%, turns 60-150 minutes；Again plus formic acid, pH is adjusted：3.0-5.0.
The degreasing agent chooses TJ-A124；
WT-H is chosen in the rewetting agent.
The aqueous epoxy resins, refer to the aqueous epoxy resins directly prepared by radical polymerization（With reference to：Gao Dang
Columba livia, Li Rui, Lv Bin, Ma Jianzhong. the preparation method [P] of the tanning agent of epoxy resin containing carboxyl. application number：201310491936.4）
Embodiment 1：
Blue skin is weighed, and weightening 50% carries out following operation as measurement basis in rotary drum：
Backwater：The water of blue tare weight amount 100% after weightening is weighed, it is 35 DEG C to adjust water temperature；Add degreasing agent 0.3%, rewetting simultaneously
Agent 0.5%；
Retanning：Weigh the water of blue tare weight amount 100% after weightening；Sodium bicarbonate is added, it is 4.5 to adjust pH；Add water-base epoxy tree
Fat 12%, turns 60 minutes；Again plus formic acid, pH is adjusted： 5.0.
The degreasing agent chooses TJ-A124；
WT-H is chosen in the rewetting agent.
Embodiment 2：
Blue skin is weighed, and weightening 50% carries out following operation as measurement basis in rotary drum：
Backwater：The water of blue tare weight amount 100% after weightening is weighed, it is 35 DEG C to adjust water temperature；Add degreasing agent 0.3%, rewetting simultaneously
Agent 0.5%；
Retanning：Weigh the water of blue tare weight amount 100% after weightening；Sodium bicarbonate is added, it is 5.0 to adjust pH；Add water-base epoxy tree
Fat 8%, turns 105 minutes；Again plus formic acid, pH is adjusted：4.0.
The degreasing agent chooses TJ-A124；
WT-H is chosen in the rewetting agent.
Embodiment 3：
Blue skin is weighed, and weightening 50% carries out following operation as measurement basis in rotary drum：
Backwater：The water of blue tare weight amount 100% after weightening is weighed, it is 35 DEG C to adjust water temperature；Add degreasing agent 0.3%, rewetting simultaneously
Agent 0.5%；
Retanning：Weigh the water of blue tare weight amount 100% after weightening；Sodium bicarbonate is added, it is 6.0 to adjust pH；Add water-base epoxy tree
Fat 4%, turns 150 minutes；Again plus formic acid, pH is adjusted：3.0.
The degreasing agent chooses TJ-A124；
WT-H is chosen in the rewetting agent.
Goat wet blue upper leather, after testing, the shrinkage temperature of wet blue are processed in the present invention using aqueous epoxy resins
More than 120 DEG C, rate is thickened up to 22%, there is retanning to act on collagen, compared with conventional acrylic retanning agent, can make chromium powder
Residual in waste liquid reduces by 32%, while avoiding the Organic Pollution caused using conventional epoxies.
Present disclosure is not limited to cited by embodiment, and those of ordinary skill in the art are by reading description of the invention
And any equivalent conversion that technical solution of the present invention is taken, it is claim of the invention and is covered.
Claims (1)
1. the method for aqueous epoxy resins retanning goat wet blue upper leather, it is characterised in that：
Realized by following steps：
Blue skin is weighed, and weightening 50% carries out following operation as measurement basis in rotary drum：
Backwater：The water of blue tare weight amount 100% after weightening is weighed, it is 35 DEG C to adjust water temperature；Add degreasing agent 0.3%, rewetting agent simultaneously
0.5%；
Retanning：Weigh the water of blue tare weight amount 100% after weightening；Sodium bicarbonate is added, it is 4.5 to adjust pH；Add aqueous epoxy resins
12%, turn 60 minutes；Again plus formic acid, pH is adjusted： 5.0；
The degreasing agent chooses TJ-A124；
WT-H is chosen in the rewetting agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510269579.6A CN104862429B (en) | 2015-05-25 | 2015-05-25 | Method for retanning wet blue goat shoe upper leather by using water-borne epoxy resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510269579.6A CN104862429B (en) | 2015-05-25 | 2015-05-25 | Method for retanning wet blue goat shoe upper leather by using water-borne epoxy resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104862429A CN104862429A (en) | 2015-08-26 |
| CN104862429B true CN104862429B (en) | 2017-04-19 |
Family
ID=53908597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510269579.6A Expired - Fee Related CN104862429B (en) | 2015-05-25 | 2015-05-25 | Method for retanning wet blue goat shoe upper leather by using water-borne epoxy resin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104862429B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354250A (en) * | 2017-08-31 | 2017-11-17 | 成都卡美奇鞋业有限公司 | Chinese medicine preparation for leather shoes deodorization |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009067847A (en) * | 2007-09-11 | 2009-04-02 | Kaneka Corp | Re-tanning agent and leather product |
| CN102304592B (en) * | 2011-08-02 | 2013-07-24 | 峰安皮业股份有限公司 | Production process of suede leather |
-
2015
- 2015-05-25 CN CN201510269579.6A patent/CN104862429B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104862429A (en) | 2015-08-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101117648B (en) | Novel process for leather retanning | |
| CN102178050A (en) | Process for preparing intestinal membrane protein powder by utilizing residual liquid sourced from heparin sodium production | |
| CN103509888A (en) | Salt-free pickling-free less-chrome combination tanning method for first layer cattle shoe upper leather | |
| CN104862429B (en) | Method for retanning wet blue goat shoe upper leather by using water-borne epoxy resin | |
| CN103772532A (en) | Method for processing skim rubber | |
| CN103936119B (en) | Polysilicate ferric aluminum chloride/fluorescent brightener composite cyanobacteria treatment agent and manufacturing method thereof | |
| CN107640794B (en) | Efficient composite sewage treatment agent for domestic sewage and preparation method thereof | |
| CN105693952A (en) | Natural component water-retaining agent production technology | |
| CN104232809B (en) | Collagen-modified negatively charged ion retanning agent of a kind of magnetic and preparation method thereof | |
| CN102492166B (en) | Method for preparing feather keratin sponge by using feathers | |
| CN103275338B (en) | A kind of method adopting glutaraldehyde to improve gracilaria agar gel strength | |
| CN102559950B (en) | A kind of waste liquid that circulates carries out the leather-making technology of the large-scale production of pickling chrome tanning | |
| CN201835379U (en) | Water-saving operation device | |
| CN102234694A (en) | Salt-free leather-making process capable of carrying out acid-picking chrome tannage by indefinitely recycling waste liquid | |
| CN104651341A (en) | Method for performing bio-enzyme immobilization through rice bran | |
| CN104278113B (en) | Containing the carboxyl epoxy resin salt-free process for tanning to goat skin | |
| CN103740786A (en) | Method for preparing potato extract powder by utilizing potato starch wastewater | |
| CN104593437A (en) | Deprivation method of fermentation inhibitor in wood fibre pre-hydrolysis liquid | |
| CN104726622A (en) | Salt-free pickling two-step chrome tanning process | |
| CN101525673B (en) | Process for tanning wet-white leather by modified starch tanning agent | |
| CN107384977A (en) | A kind of method for strengthening sludge fermentation debirs lactic acid producing efficiency using positive voltage | |
| CN101665784A (en) | Micro-spherical fossilized complex enzyme and process for preparing edible gelatine by enzymolysis of leather | |
| CN104789717A (en) | Process for processing cattle hide upper leather by adopting nano-composite leather wet finishing auxiliary | |
| CN103848408B (en) | A kind of method utilizing shell to prepare secondary calcium phosphate | |
| CN103146850B (en) | Salt-free pickling-free amphoteric polymer chrome-free tanning agent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170419 |