CN105386342A

CN105386342A - Catinorganic icon dyeing retarding agent use method

Info

Publication number: CN105386342A
Application number: CN201510872180.7A
Authority: CN
Inventors: 孙德帅; 方龙; 张中一; 姜鹏
Original assignee: Qingdao University
Current assignee: Qingdao University
Priority date: 2015-11-26
Filing date: 2015-11-26
Publication date: 2016-03-09
Anticipated expiration: 2035-11-26
Also published as: CN105386342B

Abstract

The invention relates to a catinorganic icon dyeing method using an inorganic icon liquid retarding agent. The method is suitable for a dip dyeing process of acrylic fibers. The concentration of the inorganic icon liquid retarding agent is 0.02-0.5mmol/L, dip dyeing is performed at 40 DEG C, and at 95 DEG C, heat preservation dyeing is performed for 30-100min. The inorganic icon liquid retarding agent is convenient to use, has no objectional odor, the dyeing process is simple, has no special requirements on a catinorganic icon dye, can finish dyeing in traditional dyeing equipment and a dyed product is consistent with a conventionally dyed product in quality.

Description

Cationic dyeing retarding agents using method

Technical field

The invention belongs to cationic dyeing field, particularly relate to a kind of ionic liquid that uses as the cationic dyeing method of retarding agents.

Background technology

Acrylic fiber light weight, warming, soft, therefore there is the laudatory title of " synthetic wool ", apply increasingly extensive.Acrylic fiber take acrylonitrile as the terpolymer of main monomer, and the introducing of Third monomer makes fiber with load, gives cation dyes with " the dye seat " of dyeing.Because the elecrtonegativity of the 3rd body is higher, when making the cationic dyeing of acrylic fiber, dyeing rate is too fast.Cation dyes, once contact with the negative electrical charge in fiber, can be formed and firmly combine, and cause dyestuff chromatophilia to be in the fibre deteriorated.The temperature of dyeing is then depended in dyestuff diffusion in the fibre.Acrylic fiber is thermosensitive type fiber, and when dyeing temperature is higher than the vitrification point of fiber, the strenuous exercise of fiber macromolecular chain, a large amount of cation dyes can concentrate diffusion in narrow temperature range.Above-mentioned reason causes the dyeing of acrylic fiber very easily to produce uneven effect, particularly easier dyeing flower during dye light color.

Therefore, in cationic dyeing process, usually add some cationic levelling agents and reach the object of level dyeing.Domestic the most frequently used cationic surfactant is 1227 (dodecyl benzyl dimethyl ammonium chlorides) and 1631 (softex kws), but it is undesirable all to there is level-dyeing property, there is peculiar smell, consumption is large, high to water quality requirement, chromatography difficulty, to problems such as some dyestuff dye-uptake reductions.

Summary of the invention

The present invention is directed to cationic surfactant even dyeing effect poor, have the shortcomings such as peculiar smell, a kind of ionic liquid retarding agents is efficiently provided.Utilize ionic liquid to ionize in the solution and produce the larger cation group of volume, cation group occupies the dye seat that acrylic fiber can be combined with dye cations on the one hand, slow down the speed of action of dyestuff and fiber; Polyoxyethylene group on the other hand in anions in solution group can form the solubilizing effect of local to dyestuff, reduce the free dye molecular amounts in solution; And the anionic group that in ionic liquid, volume is larger can cation dyes effect, reduce the water-soluble of dyestuff, thus slow down the dyeing speed of cation dyes.

The technical scheme implementing this invention comprises with lower part:

1) cation dyes, ionic liquid retarding agents is water-soluble, add citric acid and natrium citricum regulator solution pH is 4-6, for subsequent use.

2) above-mentioned dye liquor is warming up to 40 DEG C, controlling bath raio is 1: 20, adds acrylic fibers, with the programming rate of 2 DEG C/min, is warmed up to 95 DEG C, insulation dyeing 30-100min.

3) acrylic fibers take out after terminating by dyeing, put into the washing liquid containing detergent 209, washing 15min at 50 DEG C, with after washing 2 times, dry.

The structure of above-mentioned ionic liquid retarding agents as shown in Equation 1.

In formula, R1, R2 and R3 are-CH ₃,-CH ₂cH ₂,-CH ₂cH ₂cH ₃,-CH ₂cH ₂oH ,-CH ₂cH ₂cH ₂oH ,-CH ₂cHOHCH ₂the structure of OH, R1, R2 and R3 can be identical, also can be different; N=8-14; X+y=2, wherein y=0-1.

The concentration of above-mentioned ionic liquid retarding agents is 0.02-0.5mmol/L.

The determined ionic liquid retarding agents of the present invention has the following advantages in acrylic fibres dyeing process:

(1) dyeing adopts ionic liquid to substitute the large molecule quaternary surfactant of tradition, and ionic liquid also can slow down the absorption of dyestuff on fiber, increases dyestuff migration property energy in the fibre.

(2) namely the consumption of dyeing course intermediate ion liquid can reach the requirement of normal dyeing under low concentration.Ion liquid dissolving is convenient simultaneously, free from extraneous odour.

(3) ionic liquid retarding agents is easy to use, and dyeing is simple, does not have particular/special requirement, can complete dyeing in traditional dyeing installation to cation dyes.

Detailed description of the invention

Embodiment 1

Acrylic fiber exhaust process, the technological process of ionic liquid retarding agents is: respectively cationic red X-GKL, cationic golden yellow X-GL, cationic yellow X-8BLN (1%owf) are dissolved in water with ionic liquid (0.1mmol/L), the bath raio of adjustment staining solution is 1: 20, and pH value is 6.0.Be warming up to 40 DEG C, put into acrylic fibers, with the programming rate of 2 DEG C/min, be warmed up to 95 DEG C, insulation dyeing 50min.Acrylic fibers after dyeing are taken out in the washing liquid putting into containing detergent 209 (3g/L), washing 15min at 50 DEG C, with after washing 2 times, dry.

Conventional retarding agents technological process is:: respectively by cationic red X-GKL, cationic golden yellow X-GL, cationic yellow X-8BLN (2%owf) and 1127 (2%owf, about 29mmol/L) be dissolved in water, the bath raio of adjustment staining solution is 1: 20, and pH value is 6.0.Be warming up to 40 DEG C, put into acrylic fibers, with the programming rate of 2 DEG C/min, be warmed up to 95 DEG C, insulation dyeing 50min.Acrylic fibers after dyeing are taken out in the washing liquid putting into containing detergent 209 (3g/L), washing 15min at 50 DEG C, with after washing 2 times, dry.

Adopt the cotton fabric dyeing process result of the present embodiment technical scheme dyeing see table 1, the dyeing containing ionic liquid retarding agents is substantially identical with the dye-uptake of normal dyeing.

Embodiment 2

Acrylic fiber exhaust process, the technological process of ionic liquid retarding agents is: respectively cationic blue x-grrl, the bright blue X-GB of CATION (3%owf) are dissolved in water with ionic liquid (0.3mmol/L), the bath raio of adjustment staining solution is 1: 20, and pH value is 6.0.Be warming up to 40 DEG C, put into acrylic fibers, with the programming rate of 2 DEG C/min, be warmed up to 95 DEG C, insulation dyeing 50min.Acrylic fibers after dyeing are taken out in the washing liquid putting into containing detergent 209 (3g/L), washing 15min at 50 DEG C, with after washing 2 times, dry.

Conventional retarding agents technological process is: respectively cationic blue x-grrl, the bright blue X-GB of CATION (3%owf) and 1127 (2%owf, about 29mmol/L) are dissolved in water, and the bath raio of adjustment staining solution is 1: 20, and pH value is 6.0.Be warming up to 40 DEG C, put into acrylic fibers, with the programming rate of 2 DEG C/min, be warmed up to 95 DEG C, insulation dyeing 50min.Acrylic fibers after dyeing are taken out in the washing liquid putting into containing detergent 209 (3g/L), washing 15min at 50 DEG C, with after washing 2 times, dry.

Adopt the cotton fabric dyeing process result of the present embodiment technical scheme dyeing see table 1, the dyeing containing ionic liquid retarding agents is substantially identical with normal dyeing dye-uptake.

Table 1 adopts cation dyes to pure acrylic fabric dyeing Dye up-take E, and its calculating formula is as shown in (1).

E = \frac{A_{0} - A_{1}}{A_{0}} \times 100 % - - - (1)

In formula, A ₀, A ₁λ respectively _maxthe absorbance of dye liquor raffinate before lower dyeing, after dyeing.

Table 1 cationic dyeing dye-uptake

Claims

1. a cationic dyeing retarding agents using method, is characterized in that ionic liquid retarding agents used has structure shown in formula (1)

In formula, R1, R2 and R3 are-CH ₃,-CH ₂cH ₂,-CH ₂cH ₂cH ₃,-CH ₂cH ₂oH ,-CH ₂cH ₂cH ₂oH ,-CH ₂cHOHCH ₂the structure of OH, R1, R2 and R3 can be identical, also can be different; N=8-14; X+y=2, wherein y=0-1;

Dyeing process step comprises 1) according to coloration requirements by water-soluble to cation dyes, ionic liquid retarding agents, regulator solution pH is 4-6, and ionic liquid concentration is 0.02-0.5mmol/L; 2) dye liquor is warming up to 40 DEG C and adds acrylic fibers, with the programming rate of 2 DEG C/min, is warmed up to 95 DEG C, insulation dyeing 30-100min; 3) acrylic fibers take out after terminating by dyeing, put into the washing liquid containing detergent 209, washing 15min at 50 DEG C, with after washing 2 times, dry.