The method of the modified pigment dyeing of a kind of ramie fabric
Technical field
The present invention relates to field of fabric producing technology, particularly fabric-modifying dyeing.
Background technology
Bast-fibre, as the most ancient textile fabric, is considered to the witness of human history.The flax fibre that flax spinning is contained comprises: flax, ramie, jute, sisal hemp, gombo hemp, hemp, bluish dogbane etc.Hygroscopicity is strong, rapid heat dissipation, and antiseptic and inhibiting bacteria function ability is strong, tone is soft, reproducible utilization, ecological, environmental protective ... numerous advantages characteristics, make hemp product from time immemorial to all existing among human lives now, developing, the development of flax product is also the embodiment of wisdom of humanity development simultaneously.
Flax fibre is because degree of crystallinity is high, the degree of orientation is high, little and the compact arranged aggregated structure in inclination angle, there is the defect of stainability difference, be embodied in dyestuff to fibrous inside diffusion slowly, dye-uptake is lower, low degree of fixation and COLOR FASTNESS difference etc., the dyeing tinctorial yield of a lot of flax fibre is not high, and the dark kind of part need carry out secondary dyeing just can reach Color.In Chinese invention patent " method of modifying of linen fibre " [CN1584183], disclose a kind of method that linen fibre modification is beneficial to dye, first linen fibre is put into the urea liquid that content is 50 ~ 300 grams per liters, soak into rear taking-up, then being heat 1 ~ 4 minute in the micro-wave oven of 300 ~ 400W in power output by linen fibre, is then heat in the micro-wave oven of 600 ~ 800W after 0.5 ~ 3 minute to take out in power output by linen fibre.Through modified linen fibre color depth with compare before modified and can improve more than 6%.
In the process that traditional activated dyestuff dyes to flax fibre, in order to improve dye-uptake and the degree of fixation of REACTIVE DYES, a large amount of sodium chloride or sodium sulphate must be added, and consumption reaches 30 ~ 150g/l.The use of a large amount of inorganic salts, cannot degrade and reclaim, very big to the negative effect of water quality and soil, causes the pollution to environment.
Summary of the invention
For above-mentioned defect, the object of the invention is to, provide the method for the modified pigment dyeing of a kind of ramie fabric, improve the dyeability of ramee, make ramee in elongation, hook strong, pliability, fatigue behaviour and dyeability and be all significantly improved.
For achieving the above object, technical scheme of the present invention is the method for the modified pigment dyeing of a kind of ramie fabric, and concrete steps are as follows:
(1) modification liquid (with parts by weight) is prepared:
N hydroxymethyl acrylamide 40-55
3-chloro-2-hydroxypropyl trimethylammonium amine hydrochlorate 20-30
Triethanolamine 60-90
Methyl acrylate 6-8
ZnCl
2 10-15
Water 100-150;
(2) grafting process: will bake 8min → washing → acid neutralization → washing → dry at ramie fabric → room temperature immersion → oven dry → 150 of pre-treatment DEG C, wherein, the consumption of modification liquid is 5%(owf.), bath raio 1:10-30;
(3) modified pigment dyeing: modified ramie step 2 prepared dyes, its dye liquor technical recipe following (in grams per liter):
The red 10-15 of D type pigmented paint
Adhesive 25-30
Migration inhibitor 10-12
Crosslinking agent 15-20
Silicone oil 3-5
MgCl
21-2
Water 80-100;
The technological process of described dyeing is that → drying → evaporate → soap → hot blast tentering oven dry → clot is rolled in grey cloth pre-treatment → bis-leaching two; Wherein, after grey cloth pre-treatment, liquid carrying rate is 70-75%, and even end to end, and after dye, pick-up is 90-95%; Padding temperature is room temperature; The speed of a motor vehicle is 20-40 m/min; When padding dye liquor, nip pressure is air pressure 147KPa, oil pressure 118KPa; Drying steam pressure is 49-147KPa, and each drying cylinder is gradually high successively.
Preferably, the consisting of (with parts by weight) of described modification liquid:
N hydroxymethyl acrylamide 50 parts
3-chloro-2-hydroxypropyl trimethylammonium amine hydrochlorate amine 25 parts
Triethanolamine 75 parts
Methyl acrylate 7 parts
ZnCl
212.5 parts
125 parts, water.
Preferably, tartaric acid adjust ph is used during described dyeing.
The invention has the advantages that: by the cation modifying to ramie fabric, improve the affinity between coating-fabric, improve the dye-uptake of coating to ramie fabric.Containing multiple hydroxyl in modifier molecules chain, reduce traditional low molecular weight linen modifier as the positive charge effect of Glytac reagent, and introduce in fabric abundant " dye seat ", improve the level-dyeing property of coating in modified ramie textile dyeing, make ramee in elongation, hook strong, pliability, fatigue behaviour and dyeability and be all significantly improved.
The inventive method is simple and feasible, does not need to build large production equipment, only needs simple textile fabric post processing equipment just can realize suitability for industrialized production, has investment of production few, and technique is simple, the features such as production cost is low.
Detailed description of the invention
Below by embodiment, technical scheme of the present invention is described in further detail.
Embodiment one:
(1) modification liquid (with parts by weight) is prepared:
N hydroxymethyl acrylamide 40
3-chloro-2-hydroxypropyl trimethylammonium amine hydrochlorate 20
Triethanolamine 60
Methyl acrylate 6
ZnCl
2 10
Water 100;
(2) grafting process: will bake 8min → washing → acid neutralization → washing → dry at ramie fabric → room temperature immersion → oven dry → 150 of pre-treatment DEG C, wherein, the consumption of modification liquid is 5%(owf.), bath raio 1:10;
(3) modified pigment dyeing: modified ramie step 2 prepared dyes, its dye liquor technical recipe following (in grams per liter):
D type pigmented paint red 10
Adhesive 25
Migration inhibitor 10
Crosslinking agent 15
Silicone oil 3
MgCl
21
Water 80;
The technological process of described dyeing is that → drying → evaporate → soap → hot blast tentering oven dry → clot is rolled in grey cloth pre-treatment → bis-leaching two; Wherein, after grey cloth pre-treatment, liquid carrying rate is 70%, and even end to end, and after dye, pick-up is 90%; Padding temperature is room temperature; The speed of a motor vehicle is 20 ms/min; When padding dye liquor, nip pressure is air pressure 147KPa, oil pressure 118KPa; Drying steam pressure is 49KPa, and each drying cylinder is gradually high successively.
Embodiment two:
(1) modification liquid (with parts by weight) is prepared:
N hydroxymethyl acrylamide 55
3-chloro-2-hydroxypropyl trimethylammonium amine hydrochlorate 30
Triethanolamine 90
Methyl acrylate 8
ZnCl
2 15
Water 150;
(2) grafting process: will bake 8min → washing → acid neutralization → washing → dry at ramie fabric → room temperature immersion → oven dry → 150 of pre-treatment DEG C, wherein, the consumption of modification liquid is 5%(owf.), bath raio 1:30;
(3) modified pigment dyeing: modified ramie step 2 prepared dyes, its dye liquor technical recipe following (in grams per liter):
D type pigmented paint red 15
Adhesive 30
Migration inhibitor 12
Crosslinking agent 20
Silicone oil 5
MgCl
22
Water 100;
The technological process of described dyeing is that → drying → evaporate → soap → hot blast tentering oven dry → clot is rolled in grey cloth pre-treatment → bis-leaching two; Wherein, after grey cloth pre-treatment, liquid carrying rate is 75%, and even end to end, and after dye, pick-up is 95%; Padding temperature is room temperature; The speed of a motor vehicle is 40 ms/min; When padding dye liquor, nip pressure is air pressure 147KPa, oil pressure 118KPa; Drying steam pressure is 147KPa, and each drying cylinder is gradually high successively.
Embodiment three:
(1) modification liquid (with parts by weight) is prepared:
N hydroxymethyl acrylamide 50 parts
3-chloro-2-hydroxypropyl trimethylammonium amine hydrochlorate amine 25 parts
Triethanolamine 75 parts
Methyl acrylate 7 parts
ZnCl
212.5 parts
125 parts, water;
(2) grafting process: will bake 8min → washing → acid neutralization → washing → dry at ramie fabric → room temperature immersion → oven dry → 150 of pre-treatment DEG C, wherein, the consumption of modification liquid is 5%(owf.), bath raio 1:20;
(3) modified pigment dyeing: modified ramie step 2 prepared dyes, its dye liquor technical recipe following (in grams per liter):
D type pigmented paint red 12
Adhesive 28
Migration inhibitor 11
Crosslinking agent 17
Silicone oil 4
MgCl
21.5
Water 90;
The technological process of described dyeing is that → drying → evaporate → soap → hot blast tentering oven dry → clot is rolled in grey cloth pre-treatment → bis-leaching two; Wherein, after grey cloth pre-treatment, liquid carrying rate is 73%, and even end to end, and after dye, pick-up is 93%; Padding temperature is room temperature; The speed of a motor vehicle is 30 ms/min; When padding dye liquor, nip pressure is air pressure 147KPa, oil pressure 118KPa; Drying steam pressure is 100KPa, and each drying cylinder is gradually high successively.
The above; be only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the present invention; the change can expected without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.