CN101603101B - Leather retanning fat-liquoring agent and preparation method thereof - Google Patents
Leather retanning fat-liquoring agent and preparation method thereof Download PDFInfo
- Publication number
- CN101603101B CN101603101B CN2009100724322A CN200910072432A CN101603101B CN 101603101 B CN101603101 B CN 101603101B CN 2009100724322 A CN2009100724322 A CN 2009100724322A CN 200910072432 A CN200910072432 A CN 200910072432A CN 101603101 B CN101603101 B CN 101603101B
- Authority
- CN
- China
- Prior art keywords
- fat
- leather
- liquoring agent
- preparation
- leather retanning
- 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
Landscapes
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The invention discloses a leather retanning fat-liquoring agent and a preparation method thereof. The component of the leather retanning fat-liquoring agent is poly(maleic acid) fat monoamide which is a homopolymer with the molecular weight between 300 and 800; the preparation method comprises the following steps: dissolving maleic anhydride by using an organic solvent of which the mass is 1 to 3 times of that of poly-maleic anhydride, then adding fatty amine to the mixture, and adding an acid catalyst to the mixture to perform reaction at a temperature of between 80 and 130 DEG C for 2 to 6 hours; and performing reduced pressure distillation to remove most of the solvent, cooling the mixture until the temperature is between 50 and 65 DEG C, adjusting the pH of the solution to between 6 and 8 by using sodium hydroxide and adjusting the solid content to between 15 and 25 percent to obtain the leather retanning fat-liquoring agent. The poly(maleic acid) fat monoamide is a multifunctional leather chemical material integrating retanning and fat-liquoring. The leather retanning fat-liquoring agent which contains the poly(maleic acid) fat monoamide and is prepared by the method not only has pleasant smell but also has high storage stability, the leather processed by the leather retanning fat-liquoring agent has improvements in tensile strength, oil lubrication sense, fullness, softness and elasticity, and the leather has obviously-improved waterproofness after being fixed by a chrome tanning agent.
Description
Technical field:
The present invention relates to a kind of leather retanning fat-liquoring agent, the invention still further relates to the preparation method of this kind leather retanning fat-liquoring agent.
Background technology
Oligo surfactant is one type of novel surfactant of rising in recent years, is made up of two or more same or almost same structural units, and this special composition structure has been brought many premium propertiess and application prospects for it.Although it is many abroad in recent years to the research and the report of oligo surfactant; But China's research starting in this respect is than later; Research to this field in recent years also mainly concentrates on double quaternary ammonium salt type dimeric surfactant (being the Gemini tensio-active agent) aspect; Other correlative study report is fewer, and the report that oligo surfactant is applied in the leather industry is few especially.
Summary of the invention
The present invention wants the technical solution problem to provide a kind of leather retanning fat-liquoring agent, and the another one technical problem that the present invention will solve provides the preparation method of this leather retanning fat-liquoring agent.
The composition of leather retanning fat-liquoring agent of the present invention is the polymaleic acid fatty monoamide, is a kind of homopolymer, and molecular weight is between 300～800; Have following chemical structure:
Wherein: R represents C
12～C
24Normal chain alkyl;
N represents 3～8; M represents 1.5～8.
The preparation method of leather retanning fat-liquoring agent polymaleic acid fatty monoamide of the present invention is following:
1) under 50～65 ℃ the temperature with the organic solvent of 1～3 times of HPMA quality with the maleic anhydride dissolving after; Mol ratio by 0.6～1.1: 1 adds aliphatic amide; The amount of substance of polymkeric substance is in the amount of substance of maleic anhydride, and then the acid catalyst of adding HPMA and aliphatic amide total mass 0.5%～1.5% reacted 2～6 hours down at 80～130 ℃;
2) after reaction was accomplished, 50%～80% solvent was removed in underpressure distillation, is cooled to 50～65 ℃, uses the pH value of sodium hydrate regulator solution to be 6-8, and the adjusting solids content is 15%～25% to get final product.
Organic solvent is glycol dimethyl ether, diethylene glycol dimethyl ether or N, dinethylformamide; Aliphatic amide is amino dodecane, tetradecy lamine, cetylamine, stearylamine, two tetradecy lamines or their mixture; Acid catalyst is tosic acid, phosphoric acid, boric acid or sulfuric acid.
The reaction formula of said process is following:
The invention has the advantages that in the molecular chain of HPMA and contain several maleic anhydride structural units, with its with the aliphatic amide modification after, have the oligo surfactant structure.Contain hydrophobic chain alkyl in the side chain of polymaleic acid fatty monoamide, contain again a plurality of can with Cr in the chrome tanned leather
3+The bonded carboxyl can carry out multiple spot with collagen or tanning agent in the leather and combine, and plays the purpose of retanning, thereby makes its existing retanning effect that the stuffing effect arranged again.And the leather that wherethrough was managed is through polyvalent metal ion, like Cr
3+After fixing, can also give leather certain water-repellancy.Therefore, the polymaleic acid fatty monoamide is a kind of multifunctional leather chemical material that integrates retanning, stuffing.Not only smell is pleasant for the polymaleic acid fatty monoamide leather retanning fatliquor of employing the inventive method preparation; And stability in storage is high; After the leather wherethrough reason; Tensile strength, glossy sense, fullness ratio, pliability, elasticity all make moderate progress, and the water resistance of leather obviously strengthens after chrome tanning agent is fixing.
Embodiment
Embodiment 1:
Under 60 ℃, use 50g N, after dinethylformamide dissolves the 25g HPMA fully, add 46g amino dodecane and 0.6g tosic acid, mix afterwards 90 ℃ of following successive reactions 3.5 hours; 55% N is removed in underpressure distillation, and dinethylformamide is cooled to 55 ℃, and using mass concentration is that the pH value of 30% sodium hydrate regulator solution is about 6.5, and adding water adjusting product solid content at last is 20%.
Embodiment 2:
Under 65 ℃, after with the 60g diethylene glycol dimethyl ether 25g HPMA being dissolved fully, add 50g tetradecy lamine and 0.8g tosic acid, mix afterwards 95 ℃ of following successive reactions 4 hours; 65% diethylene glycol dimethyl ether is removed in underpressure distillation, is cooled to 60 ℃, and using mass concentration is that the pH value of 30% sodium hydrate regulator solution is about 6.5, and adding water adjusting product solid content at last is 20%.
Embodiment 3:
Under 55 ℃, use 47g N, after dinethylformamide dissolves the 25g HPMA fully, add 62g cetylamine and 0.8g sulfuric acid, mix afterwards 90 ℃ of following successive reactions 3.5 hours; 60% N is removed in underpressure distillation, and dinethylformamide is cooled to 50 ℃, and using mass concentration is that the pH value of 30% sodium hydrate regulator solution is about 7.0, and adding water adjusting product solid content at last is 20%.
Embodiment 4:
Under 60 ℃, after with the 40g glycol dimethyl ether 25g HPMA being dissolved fully, add 65g stearylamine and 0.9g boric acid, mix afterwards 100 ℃ of following successive reactions 3.5 hours; 60% glycol dimethyl ether is removed in underpressure distillation, is cooled to 55 ℃, and using mass concentration is that the pH value of 30% sodium hydrate regulator solution is about 7.0, and adding water adjusting product solid content at last is 20%.
Embodiment 5
Under 65 ℃, use 60g N, after dinethylformamide dissolves the 25g HPMA fully, add 80g two tetradecy lamines and 1.0g phosphoric acid, mix afterwards 105 ℃ of following successive reactions 3 hours; 70% N is removed in underpressure distillation, and dinethylformamide is cooled to 60 ℃, and using mass concentration is that the pH value of 30% sodium hydrate regulator solution is about 7.0, and adding water adjusting product solid content at last is 20%.
Embodiment 6
Below for the application example of product of the present invention and effect thereof.
Leather retanning fat-liquoring agent of the present invention is carried out retanning stuffing test to chrome tanning ox-hide, pigskin crust leather, and its application art is following:
Blue skin weighs-washes-neutralize-retanning stuffing-formic acid fixes-chromium fixes
The consumption massfraction of composite tan fatting agent accounts for 12%～15% of blue skin in the above-mentioned technology.
Application test is the result show: leather retanning fat-liquoring agent of the present invention is used for chrome tanned leather retanning stuffing, and specific absorption is near 100%, and during shadow dyeing to the absorption of dyestuff.The rate that the thickens massfraction of leather reaches more than 30%, and fullness ratio is good.The leather glossy sense strong, flexibility, elasticity, tensile strength all make moderate progress, and the smooth exquisiteness of grain.After the retanning stuffing, leather has tangible water-repellancy and good napping effect.
Claims (5)
1. leather retanning fat-liquoring agent, its chemical ingredients is the polymaleic acid fatty monoamide, is a kind of homopolymer, molecular weight is between 300～800; Have following chemical structure:
Wherein: R represents C
12～C
24Normal chain alkyl;
N represents 3～8; M represents 1.5～8.
2. preparation method of leather retanning fat-liquoring agent according to claim 1:
(1) under 50～65 ℃ the temperature with the organic solvent of 1～3 times of HPMA quality with the maleic anhydride dissolving after; Mol ratio by 0.6～1.1: 1 adds aliphatic amide; The amount of substance of polymkeric substance is in the amount of substance of maleic anhydride, and then the acid catalyst of adding HPMA and aliphatic amide total mass 0.5%～1.5% reacted 2～6 hours down at 80～130 ℃;
(2) after reaction was accomplished, 50%～80% solvent was removed in underpressure distillation, is cooled to 50～65 ℃, uses the pH value of sodium hydrate regulator solution to be 6-8, and the adjusting solids content is 15%～25% to get final product.
3. the preparation method of leather retanning fat-liquoring agent according to claim 2, described organic solvent is glycol dimethyl ether, diethylene glycol dimethyl ether or N, dinethylformamide.
4. the preparation method of leather retanning fat-liquoring agent according to claim 2, described aliphatic amide is amino dodecane, tetradecy lamine, cetylamine, stearylamine, two tetradecy lamines or their mixture.
5. the preparation method of leather retanning fat-liquoring agent according to claim 2, described acid catalyst is tosic acid, phosphoric acid, boric acid or sulfuric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100724322A CN101603101B (en) | 2009-06-23 | 2009-06-23 | Leather retanning fat-liquoring agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100724322A CN101603101B (en) | 2009-06-23 | 2009-06-23 | Leather retanning fat-liquoring agent and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101603101A CN101603101A (en) | 2009-12-16 |
| CN101603101B true CN101603101B (en) | 2012-07-25 |
Family
ID=41469001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100724322A Expired - Fee Related CN101603101B (en) | 2009-06-23 | 2009-06-23 | Leather retanning fat-liquoring agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101603101B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120788B (en) * | 2010-12-15 | 2012-05-30 | 陕西科技大学 | Method for preparing polymaleic anhydride fatty alcohol ether single ester leather fatliquoring agent |
| CN102162015A (en) * | 2011-01-21 | 2011-08-24 | 四川德赛尔化工实业有限公司 | Comb-shaped amphiphilic modified styrene-maleic anhydride (SMA) tanning agent and preparation method thereof |
| CN106544453B (en) * | 2016-11-04 | 2018-08-07 | 汤普勒化工染料(嘉兴)有限公司 | Both sexes composite tan fatting agent and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101029343A (en) * | 2007-01-25 | 2007-09-05 | 陕西科技大学 | Production of filling-foam leather composite tanning agent |
| CN101215612A (en) * | 2007-12-26 | 2008-07-09 | 宁波工程学院 | Method for preparing composite tan fatting agent from discarded phospholipid |
| CN101285107A (en) * | 2008-04-07 | 2008-10-15 | 温州大学 | Composite sulfited vegetable oil leather fat-liquoring agent and method for preparing same |
-
2009
- 2009-06-23 CN CN2009100724322A patent/CN101603101B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101029343A (en) * | 2007-01-25 | 2007-09-05 | 陕西科技大学 | Production of filling-foam leather composite tanning agent |
| CN101215612A (en) * | 2007-12-26 | 2008-07-09 | 宁波工程学院 | Method for preparing composite tan fatting agent from discarded phospholipid |
| CN101285107A (en) * | 2008-04-07 | 2008-10-15 | 温州大学 | Composite sulfited vegetable oil leather fat-liquoring agent and method for preparing same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101603101A (en) | 2009-12-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2225399B1 (en) | Retanning and fatliquoring agent for leather | |
| CN101603101B (en) | Leather retanning fat-liquoring agent and preparation method thereof | |
| WO2007006718A1 (en) | Method for producing leather | |
| CN103131804A (en) | Amphiprotic amphiphilic leather retanning fatting agent and preparation method thereof | |
| CN110387009B (en) | Amphoteric polymer surfactant and chrome-free tanning leather fatting agent containing surfactant | |
| CN104789715A (en) | Salt-free, pickling-free, short-process and little-chromium tanning method | |
| CN102260764A (en) | Fish oil fatliquoring agent and preparation method thereof | |
| CN105925735B (en) | One kind is salt-free to exempt from pickling short route bating method without chrome | |
| TWI400380B (en) | Method for reactive dyeing of leather | |
| CN112778226A (en) | Cationic cyanuric chloride derivative tanning agent and preparation method thereof | |
| CN113481334B (en) | Bio-based leather filler and preparation method thereof | |
| CN102604023A (en) | Sulfoacid/carboxylic acid type hydrophilic chain extender and preparation method thereof | |
| CN1760377A (en) | Composition of tanning agent containing modified tara mimosa extract, and bating method without chrome | |
| CN101759839A (en) | Method for preparing polystyrene-maleic acid fatty monoamide leather retanning fatliquor | |
| CN103882161B (en) | A kind of mating type lanolin fatting agent and preparation method thereof | |
| CN102532382A (en) | Preparation method of polydiisobutylene-fatty monoamide maleate-acrylic acid leather retanning-fatting agent | |
| CN106544453A (en) | Both sexes composite tan fatting agent and preparation method thereof | |
| CN113337649B (en) | Preparation method of cationic fluorescent fatliquor | |
| CN101880735B (en) | Preparation method of high-performance carbon nanotube modified chrome tanning agent | |
| CN106065422A (en) | A kind of synthetic method of little molecule pickling auxiliary tanning agent | |
| CN102120797B (en) | Preparation method of sulfonated styrene-styrene-maleic acid fatty alcohol monoester sodium salt terpolymer tanning agent | |
| CN110863068A (en) | Preparation method of fatting agent for improving softness of leather products | |
| CN109022637B (en) | High-stability palm oil leather fatting agent and preparation method thereof | |
| CN100497660C (en) | Multifunctional tanning agent and preparation method thereof | |
| CN111118237A (en) | Light-resistant fatting agent intermediate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20130623 |