CN101446048B - Continuous pad dyeing method of polyamide fibers and blended fabrics thereof - Google Patents
Continuous pad dyeing method of polyamide fibers and blended fabrics thereof Download PDFInfo
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Abstract
The invention provides a continuous pad dyeing method of polyamide fibers and blended fabrics thereof, and the method comprises: the polyamide fibers or the blended fabrics thereof are dyed after pre-treatment, and the dyeing is the single pad dyeing of acid dyes or the sequential pad dyeing of the acid dyes and active dyes. The pad dyeing of the acid dyes has steps as follows: the polyamide fibers or the blended fabrics thereof after treatment are immersed in dyeing liquid, the acid dyes are hot rolled at 60-85 DEG C, color fixing liquid is padded after drying, the color fixing liquid is further padded after steaming and washing, and then washing and drying are carried out. The continuous pad dyeing method has the beneficial effects that the continuous pad dyeing method selects the hot rolling to lead the color yield of the polyamide fibers to be deeper and combines the dual-color-fixing process to ensure the color yield and the color fastness of the fabrics, thereby leading the fabrics to have good using value and meeting the needs of medium and high-grade fabrics.
Description
(1) technical field
The present invention relates to the continuous pad dyeing method of a kind of polyamide fibre and BLENDED FABRIC thereof, especially, relate to a kind of use ACID DYES is carried out continuous knot dyeing to polyamide fibre BLENDED FABRIC (brocade/cotton mixture fabric) to nylon fabric, acidity/REACTIVE DYES technology.
(2) background technology
Nylon fibre is because of its intensity height, ABRASION RESISTANCE, resilience are good, be widely used in pure spinning or various dress materials of blending and knitwear, particularly by the brocade/cotton mixture fabric of its blending, feel is good, and the clothes comfortableness and the gas permeability of making are preferable, and ABRASION RESISTANCE and wear are better simultaneously, favored by the consumer, belong to medium-to-high grade raw material.
Because the institutional framework of polyamide fibre, the chemical property of ACID DYES itself and on dye the reason of aspect, be the acquisition chromatic colour, usually adopt the mode of contaminating to carry out, this be because: during dip-dye, fabric is immersed in the dye liquor all the time, has adequate time and condition to make polyamide fibre produce absorption to ACID DYES, dyestuff can be exhausted fully, thereby dye nylon fibre fully, and pad dyeing do not possess above-mentioned condition because contact time is short, therefore, dye polyamide fibre on the ACID DYES and seldom adopt knot dyeing technology.The dip-dye mode that traditional polyamide fibre or brocade/cotton mixture fabric dyeing and finishing production method is adopted, though it is bright-coloured to dye, this method intermittently operated, production efficiency is low, the difficult control of product coloured light between every batch.
At the problems referred to above, carried out technological innovation in the industry, as disclose dispersion, active one-bath two-step process pad dyeing dyeing in " pad dyeing of nylon cotton interwoven thing " literary composition, dying nylon fibre on the DISPERSE DYES in this technology is a kind of physical reactions, and the COLOR FASTNESS on the nylon fibre is very poor; The dyeing that dyes the nylon cotton interwoven thing on direct dyes and the acidic dye co-bathing is disclosed in " nylon cotton interwoven thing one-bath dyeing technology " literary composition, but direct dyes in this technology are because the limitation of environmental protection aspect, use more and more inconvenient, also the specific activity dyestuff is poor to every fastness of cotton fiber for direct dyes, the tinctorial yield of this process of acidic dyestuff is low, and the technology that does not have ACID DYES fixation aspect does not reach the present stage lining to the requirement of COLOR FASTNESS.
Further, the expert dyes brocade/cotton mixture fabric and has made research adopting on acidity/REACTIVE DYES, pointed out all that as " dyeing and finishing technology of brocade/cotton mixture fabric ", " the dark knot dyeing technology research of high-count and high-density cotton brocade intertexture ", " dyeing of nylon cotton interwoven thing ", " the acid reactive dyeing research of nylon cotton interwoven thing " and patent CN1264767A acidity/REACTIVE DYES applies mechanically the continuous knot dyeing technology that is applied to brocade/cotton mixture fabric, but said method colour fixation and COLOR FASTNESS are still not ideal enough.
(3) summary of the invention
For addressing the above problem, the invention provides the continuous knot dyeing technology of a kind of polyamide fibre and BLENDED FABRIC thereof, this technology is by the hot rolling ACID DYES, not only solved the exhaust dyeing inefficiency, criticize the difference problem, and improved the dyefastness of polyamide fibre and BLENDED FABRIC thereof, thereby satisfy the requirement of medium-to-high grade garment material.
The technical solution used in the present invention is:
The continuous pad dyeing method of polyamide fibre and BLENDED FABRIC thereof, described method comprises: with the processing of dyeing after pre-treatment of polyamide fibre or its BLENDED FABRIC, described dyeing is treated to single pad dyeing ACID DYES or priority pad dyeing ACID DYES and REACTIVE DYES, described ACID DYES pad dyeing process is as follows: the polyamide fibre after will handling or its BLENDED FABRIC immerse in the dyeing liquor, 60～85 ℃ of following hot rolling ACID DYES, after the oven dry, pad fixation liquid, through decatize, washing, pad fixation liquid once more, washing, oven dry.During the printing and dyeing nylon fabric, only need the pad dyeing ACID DYES to get final product, during printing and dyeing polyamide fibre BLENDED FABRIC, also need the pad dyeing REACTIVE DYES, can first pad dyeing ACID DYES resisdye REACTIVE DYES again, also can first pad dyeing REACTIVE DYES resisdye ACID DYES again, REACTIVE DYES pad dyeing process can be carried out according to this area conventional method.The present invention selects for use 60～85 ℃ of following hot rolling modes in the pad dyeing ACID DYES time, can improve the ACID DYES dye-uptake.Described ACID DYES and REACTIVE DYES are used for the ACID DYES and the REACTIVE DYES of polyamide fibre and BLENDED FABRIC thereof for this area routine.
Described pre-treatment is the conventional pre-treating method in this area.Wherein, brocade/cotton mixture fabric is when doing pre-treatment, because nylon fibre tendering phenomenon under the condition that high temperature, oxygen float is serious, it is better generally to adopt cold rolling heap to handle the method for mercerising again, for example: brocade/cotton mixture fabric-singe-cold rolling heap-mercerising-pre-setting.Singe to yarn or fabric are nuzzled up the technical process of burning-off surface fine hair rapidly by flame or in red-hot metal surface.Cold-pad-batch preparation promptly refers to fabric through padding the certain hour of banking up behind the pre-treatment working solution, reaches through efficient washing to remove impurity, improve whiteness, improve pre-treatment effect such as wool effect of the fabric again.Mercerising be fabrics such as cotton, bast fibre spinning with concentrated sodium hydroxide (caustic soda) solution-treated to improve the technical process of fibre property.
The dyeing liquor temperature needs temperature consistent with hot rolling in the described course of hot rolling, and cohesion produces the cloth cover color dot because temperature descends can to avoid dyestuff, improves the affinity of dyestuff to fiber simultaneously.
Described steam temperature help when being controlled to be 95～115 ℃ ACID DYES on dye.
Described fixation liquid is 4～6 with acetic acid and ammonium sulfate buffer solution adjust pH.Have only about 6.5 after single pH value dissolving during with ammonium sulfate, do not reach 4～6, and when only regulating the pH value with acetic acid, owing to the effumability of acetic acid, pH value instability in use.
Concrete, when treating that DYED FABRICS is nylon fabric, described method is as follows: nylon fabric after pre-treatment, is immersed ACID DYES liquid, 60～75 ℃ of hot rollings, after the oven dry, room temperature is padded fixation liquid, 95～115 ℃ of decatize 60～120s, washing, 70～80 ℃ pad fixation liquid, washing, oven dry, the nylon fabric after obtaining dyeing.
When treating that DYED FABRICS is a brocade/cotton mixture fabric, can dye polyamide fibre after stain cotton earlier, described method is as follows: brocade/cotton mixture fabric after pre-treatment, is immersed ACID DYES liquid, 60～85 ℃ of hot rollings, after the oven dry, room temperature is padded fixation liquid, 95～115 ℃ of decatize 60～120s, washing, 70～80 ℃ pad fixation liquid, washing, and REACTIVE DYES liquid is padded in oven dry again, after the oven dry, room temperature is padded fixation liquid, 95～115 ℃ of decatize 60～120s, washing, pickling is soaped, washing, oven dry, the brocade/cotton mixture fabric after obtaining dyeing.
Also can dye cotton after stain polyamide fibre earlier, described method is as follows: brocade/cotton mixture fabric after pre-treatment, is padded REACTIVE DYES liquid, after the oven dry, room temperature is padded fixation liquid, 95～115 ℃ of decatize 60～120s, washing, pickling, soap washing, oven dry, immerse ACID DYES liquid, 60～85 ℃ of hot rollings again, after the oven dry, room temperature is padded fixation liquid, 95～115 ℃ of decatize 60～120s, washing, 70～80 ℃ pad fixation liquid, washing, oven dry, the brocade/cotton mixture fabric after obtaining dyeing.
In the above-mentioned technology, as the REACTIVE DYES of selecting for use is more serious to nylon fibre staining, when general cover rolls ACID DYES, can with REACTIVE DYES to nylon fibre color part be taken into account, the Dry Sack of two kinds of fibers is evenly consistent when helping brocade/cotton mixture fabric pad dyeing.In addition, in the above-mentioned technology, ACID DYES preferably adopts the method for cold water making beating hot water material, the improper generation color dot of avoiding material when changing material.
In the above-mentioned technology, described conventional cover rolls REACTIVE DYES, REACTIVE DYES knot dyeing technology promptly commonly used at present, as pad active dye liquor-dry-pad fixation liquid-decatize-washing (removing residue chemistry product and hydrolised dye)-dry.
The knot dyeing technology of brocade/cotton mixture fabric of the present invention, on dye the selected ACID DYES of polyamide fibre, can be the colorant match dyestuff of a kind of monogenetic dye or various ingredients, same, on dye the selected REACTIVE DYES of cotton fiber, also can be the colorant match dyestuff of a kind of monogenetic dye or various ingredients.The dyestuff of preferred dyeing pull(ing) effect unanimity.
Beneficial effect of the present invention is mainly reflected in: select for use hot rolling to make the tinctorial yield of nylon fibre darker, and in conjunction with adopting the twice color fixing process to guarantee the tinctorial yield and the COLOR FASTNESS of fabric, make fabric have good use value, satisfied the demand of medium-to-high grade lining.
(4) specific embodiment
Be example with coffee color and the grey knot dyeing technology that dyes on the difficulty below; the present invention is described in further detail; but protection scope of the present invention is not limited in this; for realizing the object of the invention; the non-creativeness change of being done; as select different ACID DYES or REACTIVE DYES kind etc. for use, all should regard as in protection scope of the present invention:
Embodiment 1:
1, the pre-treatment of brocade/cotton mixture fabric
Flow process: brocade/cotton mixture fabric-singe-cold rolling heap-mercerising-pre-setting.
1. select 50/50 nylon cotton interwoven thing for use.
2. the operation of singing is one positive one instead to singe fast, and the speed of a motor vehicle is 140m/min.
3. cold rolling heap operation is two to soak two and roll, and rotates and banks up 24 hours.
Dye liquor technology preparation (final concentration):
Caustic soda 40g/L
Hydrogen peroxide 20g/L
Sodium metasilicate 5g/L
Penetrating agent JFC 2～3g/L
Chelating agent X-178 2g/L
Clever TF-101C 2～4g/L deoils
Solvent is a water.
4. mercerising
Treatment fluid prescription ():
Caustic soda 210～220g/L
Solvent is a water.
5. pre-setting operation: setting temperature is 150～160 ℃ * 30min.
2, the dyeing of brocade/cotton mixture fabric
1. cover rolls the REACTIVE DYES technological process after rolling ACID DYES earlier:
The pre-treatment fabric → (one soaks one rolls to roll acid dye liquor, 65～70 ℃ of hot rollings, pick-up 65～75%) → infrared preliminary drying → first drying room (80 ℃) → second drying room (100 ℃) → oven dry cropping → padding fixation liquid (one soaks one rolls room temperature) → decatize (103 ℃ of steam temperatures, 90 seconds time) → cold wash → two road fixation (70～80 ℃) → washing → oven dry → routine cover rolls active dye liquor.
Conventional cover rolls active dye liquor flow process: (one soaks one rolls to roll active dye liquor, room temperature, pick-up 65-75%) → infrared preliminary drying (standard-sized sheet) → first drying room (80 ℃) → second drying room (100 ℃) → (one soaks one rolls to dry → pad fixation liquid, room temperature, pick-up 110-130%, fixation liquid: 5g/L sheet alkali+20g/L soda ash+220g/L glauber salt) → decatize (102～105 ℃ of steam temperatures, 60 seconds time) → cold wash → pickling (neutralization) of flowing → soap → heat washes → cold wash → oven dry.
2. dyeing prescription: ACID DYES selects that Shangyu new bright S-2G Huang, S-BB are red, S-B is dark blue for use; REACTIVE DYES is selected the brown CD-BN of Shanghai section China, red CD-BR, dark blue CD-NB for use.
Acid dye liquor prescription: the yellow 20g/L of S-2G
The red 12g/L of S-BB
The dark blue 12g/L of S-B
Penetrating agent JFC 2g/L
Ammonium sulfate (transferring pH=5.5) 10ml/L
Solvent is a water.
Bath raio 1: 50
Active dye liquor prescription: brown CD-BN 20g/L
Red CD-BR 5g/L
Dark blue CD-NB 4g/L
Rare marine alga is stuck with paste (migration inhibitor) 15g/L
Solvent is a water.
Bath raio 1: 30
One fixation liquid prescription: acidic color fixing agent NBF-50 5g/L
Acetic acid+ammonium sulfate (transferring PH=4.5) 5ml/L
Solvent is a water.
Two road fixation liquid prescriptions: acidic color fixing agent NBF-50 4g/L
Acetic acid+ammonium sulfate (transferring PH=4.5) 5ml/L
Solvent is a water.
3. colouring method:
To roll the REACTIVE DYES technological process described according to rolling after the ACID DYES cover in 1. earlier, and the ACID DYES of selecting for use is pulled an oar with cold water, breaks into pasty state, adds 80 ℃ of hot water the dyestuff dissolving is opened.ACID DYES is added groove dye, 65～0 ℃ of pad dyeing process control dye liquor temperatures, dye liquor pH value are 5.5, drying, pad fixation liquid together, decatize, and washing, two roads pad fixation liquid, washing, oven dry, conventional cover rolls REACTIVE DYES.Brocade/the cotton mixture fabric that finally obtains is dark brown, colour fastness to rubbing according to GB/T3920-1997 evaluation fabric, 4～5 grades of wherein anti-unlubricated frictions, moisture-proof rub 4 grades, the water-fast COLOR FASTNESS (60 ℃) of washing according to GB/T3921-1997 evaluation fabric, 4～5 grades of the fastness of wherein fading, 4 grades of staining fastnesses satisfy the medium-to-high grade dyeing fabric requirement of this fabric.
Embodiment 2:
According to embodiment 1 described method step, different is, adopts to roll REACTIVE DYES earlier and overlap the technology of rolling ACID DYES again, and other technological parameter is constant, and flow process is as follows:
Routine is rolled REACTIVE DYES → cover and is rolled acid dye liquor (one soaks one rolls, 65～70 ℃ of hot rollings) → infrared preliminary drying → first drying room (80 ℃) → second drying room (100 ℃) → cropping → pad fixation liquid (one soaks one rolls room temperature) → decatize (103 ℃ of steam temperatures, 90 seconds time) → cold wash → two road fixation (70～80 ℃) → washing → oven dry.
Brocade/cotton mixture fabric through above-mentioned processing is dark brown, colour fastness to rubbing according to GB/T3920-1997 evaluation fabric, 4～5 grades of wherein anti-unlubricated frictions, moisture-proof rub 4 grades, the water-fast COLOR FASTNESS (60 ℃) of washing according to GB/T3921-1997 evaluation fabric, 4～5 grades of the fastness of wherein fading, 4 grades of staining fastnesses satisfy the medium-to-high grade dyeing fabric requirement of this fabric equally.
Embodiment 3:
According to implementing the colouring method described in 1, different is, 50/50 nylon cotton interwoven thing is used pure nylon fabric instead, saves routine and applies mechanically active dye liquor step, and the ACID DYES prescription is with following component replacement:
Weak acid yellow B-4R 3g/L
Red A-2B 3g/L
Blue B-N2RL 4g/L
Solvent is a water.
Can obtain the nylon fabric of light coffee color after the oven dry, colour fastness to rubbing according to GB/T3920-1997 evaluation fabric, 4～5 grades of wherein anti-unlubricated frictions, moisture-proof rub 4 grades, according to the water-fast COLOR FASTNESS (60 ℃) of washing of GB/T3921-1997 evaluation fabric, 4～5 grades of the fastness of wherein fading, 4 grades of staining fastnesses.
Embodiment 4
According to implementing the colouring method described in 1, different is, 50/50 nylon cotton interwoven thing is used pure nylon fabric instead, saves routine and applies mechanically active dye liquor step, and the ACID DYES prescription is with following component replacement:
Weak acid yellow B-4R 2g/L
Red A-2B 2g/L
Blue B-N2RL 7g/L
Solvent is a water.
Can obtain the nylon fabric of grey after the oven dry, colour fastness to rubbing according to GB/T3920-1997 evaluation fabric, 4～5 grades of wherein anti-unlubricated frictions, moisture-proof rub 4 grades, according to the water-fast COLOR FASTNESS (60 ℃) of washing of GB/T3921-1997 evaluation fabric, 4～5 grades of the fastness of wherein fading, 4 grades of staining fastnesses.
Claims (7)
1. the continuous pad dyeing method of polyamide fibre and BLENDED FABRIC thereof, described method comprises: with the processing of dyeing after pre-treatment of polyamide fibre or its BLENDED FABRIC, described dyeing is treated to single pad dyeing ACID DYES or priority pad dyeing ACID DYES and REACTIVE DYES, described ACID DYES pad dyeing process is as follows: the polyamide fibre after will handling or its BLENDED FABRIC immerse in the dyeing liquor, 60～85 ℃ of following hot rolling ACID DYES, after the oven dry, pad fixation liquid, through decatize, washing, pad fixation liquid once more, washing, oven dry.
2. the method for claim 1 is characterized in that the dyeing liquor temperature is consistent with hot-rolled temperature in the described course of hot rolling.
3. method as claimed in claim 1 or 2 is characterized in that described steam temperature is controlled to be 95～115 ℃.
4. method as claimed in claim 1 or 2 is characterized in that described fixation liquid is 4～6 with acetic acid and ammonium sulfate buffer solution adjust pH.
5. method as claimed in claim 2, it is characterized in that described method is as follows: with nylon fabric after pre-treatment, immerse ACID DYES liquid, 60～75 ℃ of hot rollings, after the oven dry, room temperature is padded fixation liquid, 95～115 ℃ of decatize 60～120s, washing, 70～80 ℃ pad fixation liquid, washing, oven dry, the nylon fabric after obtaining dyeing.
6. the method for claim 1 is characterized in that described method is as follows: brocade/cotton mixture fabric after pre-treatment, is immersed ACID DYES liquid, 60～85 ℃ of hot rollings, after the oven dry, room temperature is padded fixation liquid, 95～115 ℃ of decatize 60～120s, and washing, 70～80 ℃ pad fixation liquid, washing, REACTIVE DYES liquid is padded in oven dry again, after the oven dry, room temperature is padded fixation liquid, 95～115 ℃ of decatize 60～120s, washing, pickling is soaped, washing, oven dry, the brocade/cotton mixture fabric after obtaining dyeing.
7. the method for claim 1 is characterized in that described method is as follows: brocade/cotton mixture fabric after pre-treatment, is padded REACTIVE DYES liquid, after the oven dry, room temperature is padded fixation liquid, 95～115 ℃ of decatize 60～120s, washing, pickling, soap washing, oven dry, immerse ACID DYES liquid, 60～85 ℃ of hot rollings again, after the oven dry, room temperature is padded fixation liquid, 95～115 ℃ of decatize 60～120s, washing, 70～80 ℃ pad fixation liquid, washing, oven dry, the brocade/cotton mixture fabric after obtaining dyeing.
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2008
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