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Short-flow dyeing and finishing process for brocade cotton fabric
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A short process, fabric technology, applied in the field of fabric dyeing and finishing, can solve the problems of long process flow, time-consuming, energy consumption, etc., and achieve the effect of shortening the dyeing and finishing process, improving production efficiency and saving energy.
Pending Publication Date: 2020-07-21
ZHEJIANG YINGFENG TECH CO LTD
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[0003] In the traditional dyeing and finishing process of nylon and cotton fabrics, multi-bath and multi-step methods are often used for pretreatment, that is, desizing, scouring, and bleaching are carried out separately. Dyeing usually uses a two-bath method, dyeing cotton first and then dyeing nylon. The process is long and expensive. time, energy consumption
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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Embodiment 1
[0073] A kind of chelating dispersant, described chelating dispersant is made of maleic anhydride mixed diester (as shown in formula 1), maleic acid monoester compound (as shown in formula 2), acrylic acid, maleic anhydride, trigger Agent, sodiumhydroxide, carbon disulfide, water, etc.; when polymerizing, first mix 14 parts of maleic anhydride mixed diester, 16 parts of maleic acid monoester, 20 parts of acrylic acid, 6 parts of maleic anhydride and 400 parts of water Place in a reaction kettle, stir to dissolve, pass nitrogen gas for 30 minutes, heat up to 70°C, add 0.7 parts of initiator, keep warm for 6 hours, then cool down to below 20°C, press [n(maleic anhydride mixed diester)+n(maleic anhydride mixed diester) Toric acid monoester)]: n(NaOH): n(CS 2 )=1:4:3 Add NaOH first, then slowly add CS dropwise 2 , react at 25° C. for 3 h, and then react at 45° C. for 2 h to obtain the chelating dispersant; the molecular structure of the chelating dispersing agent is shown in For...
Embodiment 2
[0081] A one-bath pretreatment agent for brocade cotton fabric, composed of chelating dispersant, sodium secondary alkylsulfonate SAS60, XP-70, AEO-9, APG, water, in parts by mass, 21 parts of chelating dispersant , SodiumAlkaneSulfonate SAS6026 parts, XP-7014 parts, AEO-99 parts, APG11 parts, water 560 parts.
[0082] The preparation method of chelating dispersant is:
[0083] Described chelating dispersant is made of maleic anhydride mixed diester (as shown in formula 1), maleic acid monoester compound (as shown in formula 2), acrylic acid, maleic anhydride, initiator, sodiumhydroxide, carbon disulfide , water, etc.; when polymerizing, first put 14 parts of maleic anhydride mixed diester, 16 parts of maleic acid monoester, 20 parts of acrylic acid, 6 parts of maleic anhydride and 400 parts of water in the reaction kettle, stir Dissolve, blow nitrogen for 30 minutes, heat up to 70°C, add 0.7 parts of initiator, keep warm for 6 hours, then cool down to below 20°C, press [...
Embodiment 3
[0087] A one-bath pretreatment agent for brocade cotton fabrics, composed of chelating dispersant, sodium secondary alkylsulfonate SAS60, XP-70, AEO-9, APG, water, in parts by mass, 26 parts of chelating dispersant , SodiumAlkaneSulfonate SAS6031 parts, XP-7016 parts, AEO-912 parts, APG14 parts, water 610 parts.
[0088] The chelating dispersant consists of maleic anhydride mixed diester (as shown in the aforementioned formula 1), maleic acid monoester compound (as shown in the aforementioned formula 2), acrylic acid, maleic anhydride, initiator, sodium hydroxide, carbon disulfide, Polymerized with water, etc.; when polymerizing, first put 14 parts of maleic anhydride mixed diester, 16 parts of maleic acid monoester, 20 parts of acrylic acid, 6 parts of maleic anhydride and 400 parts of water into the reactor, stir to dissolve , blow nitrogen for 30 minutes, heat up to 70°C, add 0.7 parts of initiator, keep warm for 6 hours, then cool down to below 20°C, press [n (maleic an...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract
The invention discloses a short-flow dyeing and finishing process for a brocade cotton fabric. The short-flow dyeing and finishing process comprises the following steps that 1) one-bath method pretreatment is carried out, specifically, a grey fabric is placed into a pretreatment finishing solution according to the bath ratio of 1: 10; the temperature is raised to 100 DEG C at the speed of 2 DEG C / min, and the temperature is kept for 30-45 minutes; the grey fabric is cooled to below 50 DEG C, the solution is drained, and the grey fabric is washed; 2) one-bath dyeing of the brocade cotton fabricis carried out, specifically, the pretreated brocade cotton fabric is placed into a dye vat according to the bath ratio of 1: 10; dyes and an assistant are added; at the temperature of 65-68 DEG C, the cotton is subjected to heat preservation treatment and dyed and neutralized with acid, and the chinlon is dyed at the temperature of 95-98 DEG C under the condition that the pH value is 4.5-5.5; the temperature is reduced, the waste solution is drained, and the brocade cotton fabric is washed; 3) the brocade cotton fabric is soaped, wherein a soaping agent is 2 g / L, the bath ratio is 1: 10, thetemperature is 90 DEG C, and the time is 10 min; and 4) functional after-finishing is carried out, specifically, a finishing solution is prepared according to the mass ratio of cationic silicone oilemulsion : water of 60 : 500; and the brocade cotton fabric is dipped in the finishing solution for 5 min, then dipped twice and rolled twice, the mangle expression is 85%-100%, and the brocade cottonfabric is dried at the temperature of 180 DEG C.
Description
technical field [0001] The invention relates to a dyeing and finishing process for textiles, in particular to a short-process dyeing and finishing process for nylon-cotton fabrics, which belongs to the field of fabric dyeing and finishing. Background technique [0002] Nylon has the characteristics of wear resistance, durability, high strength, good elasticity, small specific gravity, etc., and has certain hygroscopicity, while cotton fabric has excellent characteristics such as softness, comfort and breathability. It has good high strength and wear resistance, and is welcomed by consumers. [0003] In the traditional dyeing and finishing process of nylon and cotton fabrics, multi-bath and multi-step methods are often used for pretreatment, that is, desizing, scouring, and bleaching are carried out separately. Dyeing usually uses a two-bath method, dyeing cotton first and then dyeing nylon. The process is long and expensive. time and energy consumption. [0004] Shortening...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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