CN1834335A - Aldehyde free fixing resin for dyeing fixation - Google Patents

Abstract

An aldehyde -free color fixing resin used in textile dyeing and printing process is prepared by polymerizing DMDAAC at temperature of 80deg.c with initiator under weak base environment and then holding temperature for three hours. The color fabric processed by prepared color fixing resin can hold its original color persistently.

Description

Aldehyde free fixing resin for dyeing fixation

Technical field

The present invention relates to a kind of aldehyde free fixing resin for dyeing fixation chemical products and preparation method thereof.

Background technology

Color-fixing agent is one of indispensable important auxiliary agent in the textile printing and dyeing industry, people continue to use the color-fixing agent of the resin color fixing agent Y of dicyandiamide and formaldehyde condensation as direct dyes and REACTIVE DYES always for a long time, but since the seventies in 20th century, find that color fixing agent Y has very high free formaldehyde content after arrangement, child's underwear causes chafing after with its fixation, even cause ulcer, thus cause people's attention, begin to develop aldehyde-free colour stabilizer.

At present, many in the world countries as Germany, Japan etc. in succession by with implement relevant rules, the formaldehyde amount of restriction on the textiles in line with international standards, domesticly also also developed aldehyde-free colour stabilizer since early 1990s.

Now, formaldehydeless class color-fixing agent has obtained to use widely in dyeing.But aldehyde-free colour stabilizer major part on the market all be with raw materials for production dimethylamine, epoxy chloropropionate alkanes as basic material, the color-fixing agent that this type of raw material is synthesized, fastness to rubbing, fastness to soaping and chlorine fastness are relatively poor.Simultaneously, the DYED FABRICS changes of shade is very big, keeps original color and luster ability.

Summary of the invention

The purpose of this invention is to provide a kind of aldehyde free fixing resin for dyeing fixation chemical products, to solve the above-mentioned problems in the prior art, with the resin processed DYED FABRICS of this no aldehyde fixation of the present invention, have good anti-ly do, fastness to wet rubbing, fastness to soaping and chlorine fastness.Have the coloured light no change simultaneously, make the solid colour before DYED FABRICS keeps fixation.

Another object of the present invention provides a kind of preparation method who does not have aldehyde fixation resin chemical products.

Solution of the present invention is based in the no aldehyde fixation resin chemistry product structure and contains the quaternary ammonium salt cationic group, both can carry out ionic bonding with the anionic group in the dyestuff and form the color lake, again can with active group bonding on the fiber attached on the fiber; Simultaneously, it is similar to dye structure to contain circulus in the molecule, and both can form Van der Waals force and improve fixation resin and combination of dyes ability; Molecular mass is big, can guarantee that again the fixation resin can form the dense diaphragm of one deck at fabric and dyestuff surface, thus the protection that further improves fastness to rubbing, fastness to soaping, chlorine fastness and the color and luster of DYED FABRICS.Wherein more remarkable to the raising of fastness to soaping.

The present invention is polymerized by following composition principle:

Therefore, can carry out aqueous solution polymerization in the presence of initator dimethyl diallyl ammonium chloride is a kind of water-soluble monomer, and, the reaction equation of polymerization is:

Optimum weight (part) proportioning of preparation chemical products of the present invention is:

Dimethyl diallyl ammonium chloride 99.5

Initator 0.44

Alkali 0.06

Preparing no aldehyde fixation process for preparing resins is made up of following steps successively:

A, drop into dimethyl diallyl ammonium chloride, open and stir, be warming up to 70-72 ℃ to reactor;

B, regulate pH value 8.0-8.5, stirred 10 minutes with NaOH;

C, be dissolved in initiator ammonium persulfate (APS) and azodiisobutyronitrile (AIBN) in the 10kg water standby;

D, elder generation add the 3kg initiator solution, keep a close eye on variations in temperature, when surpassing 90 ℃, rapidly with ice water circulation cooling, treat that temperature reduces to 70 ℃, add the 3kg initiator solution again, when temperature surpasses 90 ℃, with ice water circulation cooling, treat that temperature reduces to 70 ℃ once more, add the residue initiator solution again;

E, when 90 ℃ of temperature, insulation reaction 3 hours.

F, reaction are finished, and cooling gets product.

The present invention does not have aldehyde fixation resin chemical products and can be applied on the DYED FABRICS with following method:

Earlier take by weighing 94 parts of water by quality, to wherein adding 1 part of no aldehyde fixation resin, regulate pH value to 6.0 with acetic acid, the textile cloth specimen that takes by weighing 5 parts of reactive dyeings is put into above-mentioned water, is warming up to 60 ℃ of insulations 20 minutes, cleans with hot water, and 100 ℃ of oven dry get final product.

The specific embodiment

Further specify the present invention below by embodiment.In following examples, represent fastness to rubbing, fastness to soaping, chlorine fastness and to the influence of coloured light with grade 1-5 level.Numerical value is big more, illustrates that this performance is excellent more.

Embodiment 1

A, drop into dimethyl diallyl ammonium chloride, open and stir, be warming up to 70-72 ℃ to reactor;

B, regulate pH value 8.0-8.5, stirred 10 minutes with NaOH;

C, be dissolved in initiator ammonium persulfate (APS) in the 10kg water standby;

D, elder generation add the 3kg initiator solution, keep a close eye on variations in temperature, when surpassing 90 ℃, rapidly with ice water circulation cooling, treat that temperature reduces to 70 ℃, add the 3kg initiator solution again, when temperature surpasses 90 ℃, with ice water circulation cooling, treat that temperature reduces to 70 ℃ once more, add the residue initiator solution again;

E, when 90 ℃ of temperature, insulation reaction 3 hours.

F, reaction are finished, and cooling gets product.

Be applied on the DYED FABRICS with following method:

Earlier take by weighing 94 parts of water by quality, to wherein adding 1 part of no aldehyde fixation resin, regulate pH value to 6.0 with acetic acid, the textile cloth specimen that takes by weighing 5 parts of reactive dyeings is put into above-mentioned water, is warming up to 60 ℃ of insulations 20 minutes, cleans with hot water, and 100 ℃ of oven dry get final product.Test its dried, fastness to wet rubbing then, soap and fade, calico staining, the variation performance of chlorine fastness and coloured light has been listed test result in table 1.

Embodiment 2

Repeat the method for embodiment 1, but replace ammonium persulfate (APS), in table 1, listed test result with initator azodiisobutyronitrile (AIBN).

Embodiment 3

Repeat the method for embodiment 1, but replace ammonium persulfate (APS) with 1: 1 proportioning, in table 1, listed test result with initiator ammonium persulfate (APS) and azodiisobutyronitrile (AIBN).

Among each embodiment, every performance of the no aldehyde fixation resin of making that embodiment is 3 obviously is better than embodiment 1 and 2 in the following table 1.

Claims (6)

1, a kind of preparation method of aldehyde free fixing resin for dyeing fixation chemical products, this chemical products has following physicochemical property:

(1), outward appearance: faint yellow transparent thick liquid

(2), pH value: 8.0-8.5

(3), solid content: 68.0%-70.0%

(4), dissolubility: soluble in water

(5), viscosity: 500-550mpa.s

2, optimum weight (part) proportioning of preparation chemical products of the present invention is:

Dimethyl diallyl ammonium chloride 99.5

Initator 0.44

Alkali 0.06

3, according to the preparation proportioning of claim 1,2 described no aldehyde fixation resins, wherein initator is the composition of ammonium persulfate (APS) and azodiisobutyronitrile (AIBN).

4, according to the preparation proportioning of claim 1,2 described no aldehyde fixation resins, wherein alkali is analytically pure NaOH or potassium hydroxide.

5, according to the preparation proportioning of claim 1,2,3 described no aldehyde fixation resins, wherein the proportioning of the composition of initiator ammonium persulfate (APS) and azodiisobutyronitrile (AIBN) is 1: 1.

6, preparation claim 1,2,3,4,5 described no aldehyde fixation process for preparing resins is characterized in that this method is made up of following steps:

A, drop into dimethyl diallyl ammonium chloride, open and stir, be warming up to 70-72 ℃ to reactor;

B, regulate pH value 8.0-8.5, stirred 10 minutes with NaOH or potassium hydroxide;

C, be dissolved in initiator ammonium persulfate (APS) and azodiisobutyronitrile (AIBN) in the 10kg water standby;

D, elder generation add the 3kg initiator solution, keep a close eye on variations in temperature, when surpassing 90 ℃, rapidly with ice water circulation cooling, treat that temperature reduces to 70 ℃, add the 3kg initiator solution again, when temperature surpasses 90 ℃, with ice water circulation cooling, treat that temperature reduces to 70 ℃ once more, add the residue initiator solution again;

E, when 90 ℃ of temperature, insulation reaction 3 hours.

F, reaction are finished, and cooling gets product.