CN101956336A - Modified polyester/cotton blended fabric and dyeing method thereof - Google Patents
Modified polyester/cotton blended fabric and dyeing method thereof Download PDFInfo
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Abstract
The invention provides a modified polyester/cotton blended fabric and a dyeing method thereof. The fabric is blended by modified polyester and cotton, wherein the modified polyester is copolymerized by polyester and nylon 6, and has the structural unit as the specification, wherein m1 is more than 1 and less than 160, m2 is more than 1 and less than 70, m3 is more than or equal to 0 and less than 20, and m4 is more than or equal to 0 and less than 20; the blended fabric has the performance of normal-temperature normal-pressure dyeing, and soft handfeel and good antipilling performance with the antipilling grade over 3 grades. The invention also relates to a method for dyeing the blended fabric. An acid dye or an acid dye and a disperse dye are used for one-bath dyeing so as to simplify the dyeing process and contribute to energy conservation and emission reduction; and the dyeing temperature is below 100 DEG C to remarkably reduce energy consumption.
Description
Technical field
The present invention relates to a kind of BLENDED FABRIC and colouring method thereof, be specially modified poly ester and cotton blended fabric and colouring method thereof, modified poly ester and cotton blended fabric are dyeed at normal temperatures with REACTIVE DYES, DISPERSE DYES.
Background technology
Conventional polyester fiber and cotton dyeability have a great difference: polyester fiber is generally used the DISPERSE DYES high-temperature pressure dyeing, and dyeing temperature must use high temperature-pressure dyeing machine more than 120 ℃; Cotton is generally dyeed with REACTIVE DYES, direct dyes, reducing dye etc., and dyeing temperature uses the normal temperature and pressure dyeing machine below 100 ℃.The difference of dyeability has brought very burden for the dyeing of polyester and cotton blended fabric, the dyestuff hydrolysis when dyeing under hot conditions, cotton takes place easily, influence Color, and conventional polyester must dye under hot conditions, this has just formed contradiction.
Though one-bath dyeing has been proposed in the prior art, as " polyester-cotton fabric dispersion/active one-bath dyeing " (Koryo is virtuous, Jiang Weiqiang, Ceng Zhifeng. polyester-cotton fabric dispersion/active one-bath dyeing [J]. printing and dyeing, 2009, (19): 17-20).By selecting suitable DISPERSE DYES and REACTIVE DYES for use, and take rational technology in this method, can carry out one-bath dyeing polyester-cotton fabric.Though this method is compared with the dyeing of two bath methods, the one-bath dyeing technological process is simple, weak point consuming time, and energy-saving and cost-reducing, cost greatly reduces, and every dyefastness is all suitable with the dyeing of two bath methods, and the level dyeing performance is also better.But the K/S value of polyester-cotton fabric one-bath dyeing is slightly less than the K/S value of two bath methods dyeing, and the REACTIVE DYES utilization rate is lower, is only applicable to dye light color or the less BLENDED FABRIC of cotton fiber content.And this method need be 130 ℃ of insulation 30min, as seen dyeing at high temperature down.
Application number provides a kind of polyester-cotton fabric dispersion, REACTIVE DYES one to bathe special dark technology for the Chinese patent application of 200710113013.X, this technology is selected WW series DISPERSE DYES and C series REACTIVE DYES for use, pure cotton fabric is put into dye liquor to be soaked once, roll once with padding machine then, roll the back under 75-85 ℃ of temperature preliminary drying 5-6 minute; Under 209-211 ℃ of temperature, cured 1-1.5 minute behind the preliminary drying; In the decatize case decatize 2-2.5 minute then; The decatize after washing is soaped after the washing, washing again after soaping, oven dry.Though this method has solved the staining fastness and the fastness to wet rubbing of special dark color.But complex technical process needs to realize under the high temperature.
As seen, for conventional polyester and cotton blended fabric Products Development, at present technologies such as one bath two stage process, pad-dry-cure dyeing method that adopt all be unable to do without high-temperature service more.Though the normal temperature staining technique of polyester has certain development, and is not suitable for promoting the use of.Can carry out normal temperature dyeing by adding means such as carrier for conventional polyester at present, but use that the colouring method of carrier exists that environmental pollution is big, carrier is in the follow-up shortcoming that is difficult to remove, so can not promote the use of.
" polyester-cotton blend dispersion/active one-bath dyeing new technology " (Cao Wanli, Yu Guangwen, Gu Zhian etc. polyester-cotton blend dispersion/active one-bath dyeing new technology [J]. printing and dyeing, 2009, (3): 26-28) proposed a kind of polyester-cotton blend one bath two stage process dyeing technique.But need to use terylene and cotton blended fabric thermophoresis amount of deflection elevator (dispersion color-fixing agent) the Thermofix TMR+TMF and the efficient special detergent Span-one of the exploitation of De Sang company in this method.
The method that reduces now the polyester fiber dyeing temperature and give other normal temperature dyeabilities of polyester fiber is that polyester fiber is carried out modification, and the normal-temperature normal-pressure dyeable modified polyester fiber of having developed has atmospheric cation dye capable of dyeing modified poly ester (ECDP), normal pressure disperse dye dyeable modified poly ester (EDDP), normal pressure acid-dyeable modified poly ester (EADP).
Though polyester and cotton blended fabric are very ripe products, product category and output are all very huge, but because the polyester fiber modulus is big, intensity is high, the shortcoming of the easy pilling of this kind fabric ubiquity, and the chemical fibre of the high slightly fabric of amount of polyester is sympathetic more intense, obviously reduces product specification.
The present invention uses a kind of modified poly ester and cotton to carry out blending, be embedded with the polyamide group in this modified polyester fiber macromolecular chain segment, has the performance that available ACID DYES dyes and uses the dyeing of DISPERSE DYES normal temperature, dyeing temperature is below 100 ℃, can obviously cut down the consumption of energy, and this modified poly ester intensity and modulus are all low than conventional polyester, can obviously improve the anti-pilling property and the feel of BLENDED FABRIC, thereby finish the present invention.
Summary of the invention
First purpose of the present invention provides a kind of modified poly ester/cotton blended fabric, this fabrics feel soft, and anti-pilling property is good, can reach more than 3 grades, one-bath process does not need to use special auxiliary agent at normal temperatures and pressures, simplify dyeing flow, helped energy-saving and emission-reduction.
Second purpose of the present invention is to provide a kind of colouring method of above-mentioned modified poly ester/cotton blended fabric, this method is one-bath process at normal temperatures and pressures, can control the Color of modified poly ester and cotton respectively, realize that modified poly ester and cotton one bath are homochromy or a bath is heterochromatic.
For realizing first purpose of the present invention, the present invention adopts following technical scheme:
A kind of modified poly ester/cotton blended fabric, described BLENDED FABRIC are to be formed by modified poly ester and cotton blending,
Described modified poly ester has following construction unit:
1＜m wherein
1＜160, preferred 10＜m
1＜100; 1＜m
2＜70, preferred 10＜m
2＜30; 0≤m
3＜20, preferred 0≤m
3＜10, more preferably 0≤m
3＜5; 0≤m
4＜20, preferred 0≤m
4＜10, more preferably 0≤m
4＜5.
In the said structure, preferred m
3And m
4Be not 0 simultaneously.
The content of modified poly ester is 10～70% in the BLENDED FABRIC of the present invention.
For realizing second purpose of the present invention, the present invention adopts following technical scheme:
A kind of colouring method of modified poly ester/cotton blended fabric, this method is bathed one-step method dyeing or one bath two stage process dyeing at normal temperatures fabric being carried out one with REACTIVE DYES and DISPERSE DYES.
Among the present invention, described one bathes one-step method dyeing comprises the steps:
1) textile impregnation room temperature in dye bath is gone into to dye, wherein contain dye liquor in the dye bath;
2) being warming up to the dye bath temperature with the speed of 0.5～3 ℃/min then is 40～85 ℃, fixation, and being warming up to the dye bath temperature with the speed of 0.5～3 ℃/min again is 95～100 ℃, is incubated 10～60 minutes;
3) insulation after, the cooling discharge opeing, soap, wash.
Among the present invention, described one bath two stage process dyeing comprises the steps:
1) textile impregnation room temperature in dye bath is gone into to dye, wherein contain dye liquor 1 in the dye bath;
2) being warming up to the dye bath temperature with the speed of 0.5～3 ℃/min then is 40～90 ℃, and fixation is incubated 15～90 minutes, discharge opeing, washing;
3) add dye liquor 2 in dye bath, being warming up to the dye bath temperature with the speed of 1～3 ℃/min again is 95～100 ℃, is incubated 15～60 minutes;
4) insulation after, the cooling discharge opeing, soap, wash;
Perhaps described one bath two stage process dyeing comprises the steps:
1) textile impregnation room temperature in dye bath is gone into to dye, wherein contain dye liquor 2 in the dye bath;
2) being warming up to the dye bath temperature with the speed of 1～3 ℃/min then is 95～100 ℃, is incubated 15～60 minutes, discharge opeing, washing;
3) add dye liquor 1 in dye bath, being warming up to the dye bath temperature with the speed of 0.5～3 ℃/min again is 40～90 ℃, and fixation is incubated 15～90 minutes;
4) insulation after, the cooling discharge opeing, soap, wash.
In the above-mentioned colouring method, wherein, described dye liquor comprises dyestuff, electrolyte, auxiliary agent and pH regulator agent, described dyestuff is REACTIVE DYES and DISPERSE DYES, wherein dye dosage determines that according to dying shade electrolytical consumption is 1～60g/L, and the consumption of auxiliary agent is 0.2～5g/L.
Described dye liquor 1 comprises REACTIVE DYES, electrolyte and auxiliary agent, and wherein electrolytical consumption is 1～60g/L, and the consumption of auxiliary agent is 0.2～5g/L;
Described dye liquor 2 comprises DISPERSE DYES, levelling agent and pH regulator agent, and wherein the consumption of DISPERSE DYES is by determining that according to being dyed shade the consumption of levelling agent is 0.1～5g/L.
In the above-mentioned colouring method, wherein, REACTIVE DYES is used alkaline agent or other active dye fixing agent fixation, the color-fixing agent consumption is 1～30g/L.
Above-mentioned colouring method, wherein, described temperature of soaping is 40～80 ℃.
Below describe the present invention:
At first, the invention provides a kind of modified poly ester/cotton blended fabric, this fabric is formed by modified poly ester and cotton blending; Described modified poly ester has following construction unit:
1＜m wherein
1＜160, preferred 10＜m
1＜100; 1＜m
2＜70, preferred 10＜m
2＜30; 0≤m
3＜20, preferred 0≤m
3＜10, more preferably 0≤m
3＜5; 0≤m
4＜20, preferred 0≤m
4＜10, more preferably 0≤m
4＜5.
Polyester and cotton blended fabric are very ripe products, but conventional polyester and cotton blended fabric have its specific shortcoming, be embodied in easy pilling, stronger chemical fibre sense is arranged, and feel is harder, has reduced product specification.
In addition, because conventional polyester and cotton dyeability have very big-difference, polyester fiber is generally used the DISPERSE DYES high-temperature pressure dyeing, and dyeing temperature must use high temperature-pressure dyeing machine more than 120 ℃; And cotton general REACTIVE DYES, direct dyes, the reducing dye etc. of adopting dye, and dyeing temperature uses the normal temperature and pressure dyeing machine below 100 ℃.The difference of dyeability has brought very big trouble for the dyeing of polyester and cotton blended fabric, dyestuff takes place when cotton is dyeed under hot conditions easily to be decomposed, influence Color, and conventional polyester must dye under hot conditions, this has just formed contradiction.
Among the present invention, polyester adopts the modified poly ester with said structure, polyamide molecule block is arranged in this polyester macromolecule skeleton, the existence of amide groups can be dyeed ACID DYES to it, and changed the crystal property of fiber, the unformed area structure is more loose, make that DISPERSE DYES does not need to dye on can be fine by carrier at normal temperatures, have the advantages that under 100 ℃ of conditions available ACID DYES or DISPERSE DYES carrier-free dye, solve above-mentioned contradiction well, realized polyester and cotton one-bath process.
In the said structure, can only contain polyethylene terephthalate, i.e. m in the modified poly ester macromolecular skeleton
3And m
4Be 0 situation simultaneously; Also can contain polyethylene terephthalate and gather dioctyl phthalate propylene glycol ester, polyethylene terephthalate and gather dioctyl phthalate butanediol ester or three kinds of polyester are all contained, be i.e. m
3And m
4Be not 0 situation simultaneously.Among the present invention, preferred m
3And m
4Be not 0 situation simultaneously.
Modified poly ester of the present invention is that polyester and relative viscosity are the copolymer of 1.5～2.2 nylon 6.
Polyester of the present invention is polyethylene terephthalate, polyethylene terephthalate and polytrimethylene terephthalate or polyethylene terephthalate and polybutylene terephthalate (PBT) or polyethylene terephthalate and polytrimethylene terephthalate and according to mutual-phenenyl two acid bromide two alcohol ester's multiple polyester.
Among the present invention, adopting relative viscosity is the nylon 6 and multiple polyester of 1.5-2.2, carry out copolymerization obtained sequence distribute more even, the modified poly ester that TENSILE STRENGTH is big, tension fracture elongation rate is high, and the dyeing of polyester also carried out modification, acid dyeable, aberration should not appear in even dyeing, DISPERSE DYES dye-uptake height, can realize and cotton one-bath process, and the rate of dyeing height.
Copolymer described here is meant the polyester of different polymerization degree and the copolymer of nylon 6.
Wherein, the mass content of nylon 6 is 5-30%, preferred 10-20%.
In the differential scanning calorimetry of modified poly ester of the present invention (DSC) spectrogram, its glass transition temperature (T
g) and melting peak (T
m) all having only one, the nylon 6 that adds when showing polycondensation is fully received on the polyester backbone, is not separated, and has promptly thoroughly solved the inconsistent problem of polyester and nylon 6.
From differential scanning calorimetry (DSC) the collection of illustrative plates (see figure 1) of modified poly ester, fusing point has only one as can be seen, and explanation is even copolymer, does not contain homopolymers.
The fusing point of this modification of the present invention has only one, and melting range is 150-250 ℃.
When polyester backbone was introduced nylon 6, its degree of crystallinity also changed accordingly, i.e. the additional proportion of nylon 6 is suitably controlled in the requirement of using according to material, just can be met the different polyester that require.
The intrinsic viscosity of modified poly ester of the present invention is 0.80～0.90dL/g, and TENSILE STRENGTH is 40～80MPa, and elongation at break is 10～80%, and content of carboxyl end group is less than 18mol/t, and diethylene glycol (DEG) content is less than 1.0%.
Modified poly ester of the present invention is to adopt following method preparation:
Dimethyl terephthalate (DMT) and ethylene glycol, dimethyl terephthalate (DMT) and ethylene glycol and propylene glycol or dimethyl terephthalate (DMT) and ethylene glycol and butanediol or dimethyl terephthalate (DMT) and ethylene glycol, propylene glycol and butanediol are joined in the reactor, add catalyst then and carry out ester exchange reaction, obtain product of transesterification reaction; Add polycondensation catalyst in the product of transesterification reaction of gained, be warmed up to 230 ℃ then, the adding relative viscosity is that the nylon 6/poly compound of 1.5-2.2 carries out copolyreaction, and when intrinsic viscosity reached 0.72-0.90dL/g, discharging obtained modified poly ester.
Wherein, described dimethyl terephthalate (DMT) is 1: 1.8～2.5 with the ratio of the amount of substance of ethylene glycol, preferred 1: 2.3;
Described dimethyl terephthalate (DMT) is 1: 1.8～2.5: 0.01～0.1 with the ratio of the amount of substance of ethylene glycol and propylene glycol, preferred 1: 2.2: 0.05;
Described dimethyl terephthalate (DMT) is 1: 1.8～2.5: 0.01～0.15 with the ratio of the amount of substance of ethylene glycol and butanediol, preferred 1: 2.1: 0.1;
Described dimethyl terephthalate (DMT) is 1: 1.8～2.5: 0.01～0.1: 0.01～0.1 with the ratio of the amount of substance of ethylene glycol, propylene glycol and butanediol, preferred 1: 2.1: 0.05: 0.05.
Described catalyst is a butyl titanate, and its addition is the 0.01-0.05% of total reactant quality; The temperature of described ester exchange reaction is 160 ℃-220 ℃, and the reaction time is 40-90 minute.
The addition of described nylon 6/poly compound is the 5%-30% of total reactant quality.
Described nylon 6/poly compound is that gradation adds, and the preferred method that adds at twice that adopts adds.
Among the present invention, the method that the nylon 6/poly compound adopts gradation to add adds, reduced the polymerisation between the nylon 6/poly compound, after allowing the oligomer of nylon 6/poly compound and polyester react fully, add the nylon 6/poly compound again, make that the amido link distribution on the polyester macromolecule chain is more even, thereby make that the dyeing of copolymer is more even.
Described polycondensation catalyst is a titanium compound, preferred butyl titanate, and its addition is 0.02% of a total reactant quality.
When the temperature of described copolyreaction reached 240-250 ℃, pumping high vacuum kept vacuum between 30-100Pa, continues to be warmed up to 255-260 ℃, and reaction is 4-8 hour under this temperature.
Among the present invention, also can replace nylon 6 with nylon 66.
Among the present invention, described intrinsic viscosity and relative viscosity are at 25 ℃, and solvent is 1: 1 phenol and tetrachloroethanes, determination of ubbelohde viscometer.
Among the present invention, above-mentioned modified poly ester and cotton blending are obtained a kind of polyester cotton, can the spinning commonly used according to this area → weave → processing technology of dyeing and finishing → finished product obtains.
Among the present invention, the blend of modified poly ester and cotton two kinds of fibers was finished in the spinning stage, and wherein the content of modified polyester fiber is 10～70%, and spinning technological process is with reference to conventional polyester and cotton spinning technological process.
Weaving of this BLENDED FABRIC do not have special requirement, can carry out on various fabric manufacture equipments, and fabric product can be various woven fabrics, knitted fabric.
Secondly, the invention provides the colouring method of above-mentioned modified poly ester/cotton blended fabric.
The dyeing of polyester cotton provided by the present invention can be adopted the normal temperature dyeing, also can adopt pad-dry-cure dyeing technology, the preferred normal temperature dyeing of the present invention.
Among the present invention, can use the method for dip-dye or pad dyeing during normal temperature dyeing.
Dip-dye of the present invention specifically is divided into one and bathes one-step method dyeing, one bath two stage process dyeing.
Specifically, colouring method of the present invention is at normal temperatures fabric to be carried out one with REACTIVE DYES and DISPERSE DYES to bathe one-step method dyeing or one bath two stage process dyeing, promptly below 100 ℃ fabric is being carried out bath one-step method dyeing or one bath two stage process dyeing with REACTIVE DYES and DISPERSE DYES.
Among the present invention, described one bathes one-step method dyeing comprises the steps:
1) textile impregnation room temperature in dye bath is gone into to dye, wherein contain dye liquor in the dye bath;
2) being warming up to the dye bath temperature with the speed of 0.5～3 ℃/min then is 40～85 ℃, fixation, and being warming up to the dye bath temperature with the speed of 0.5～3 ℃/min again is 95～100 ℃, is incubated 10～60 minutes;
3) insulation after, the cooling discharge opeing, soap, wash.
Above-mentioned one technological process of bathing one-step method dyeing is seen shown in Figure 2.
Wherein, described dye liquor comprises dyestuff, electrolyte, auxiliary agent and pH regulator agent, and described dyestuff is REACTIVE DYES and DISPERSE DYES, and wherein dye dosage determines that according to dying shade electrolytical consumption is 1～60g/L, and the consumption of auxiliary agent is 0.2～5g/L.
The preferred alkali resistance disperse dye of described DISPERSE DYES, dye dosage is determined according to the tinctorial pattern degree of depth;
Described electrolyte is sodium chloride, sodium sulphate etc.;
Described auxiliary agent is for to have the auxiliary agent of chelation, dyestuff to be had the surfactant of peptizaiton etc. metal ion;
Described pH regulator agent comprises sodium carbonate, glacial acetic acid etc.;
Above-mentioned one bathes in the one-step method dyeing, adds necessary color-fixing agent during fixation, and color-fixing agent can be alkaline agent or other active dye fixing agents, and as sodium carbonate, sodium phosphate, substitute alkali etc., consumption is 1～30g/L, and alkaline agent progressively adds at dyeing course in batches.
Above-mentioned one bathes in the one-step method dyeing, and the described temperature of soaping is 40～80 ℃, fully washing again after soaping.
Among the present invention, described one bath two stage process dyeing comprises the steps:
1) textile impregnation room temperature in dye bath is gone into to dye, wherein contain dye liquor 1 in the dye bath;
2) being warming up to the dye bath temperature with the speed of 0.5～3 ℃/min then is 40～90 ℃, and fixation is incubated 15～90 minutes, discharge opeing, washing;
3) add dye liquor 2 in dye bath, being warming up to the dye bath temperature with the speed of 1～3 ℃/min again is 95～100 ℃, is incubated 15～60 minutes;
4) insulation after, the cooling discharge opeing, soap, wash;
The technological process of above-mentioned one bath two stage process dyeing is seen shown in Figure 3.
Perhaps described one bath two stage process dyeing comprises the steps:
1) textile impregnation room temperature in dye bath is gone into to dye, wherein contain dye liquor 2 in the dye bath;
2) being warming up to the dye bath temperature with the speed of 1～3 ℃/min then is 95～100 ℃, is incubated 15～60 minutes, discharge opeing, washing;
3) add dye liquor 1 in dye bath, being warming up to the dye bath temperature with the speed of 0.5～3 ℃/min again is 40～90 ℃, and fixation is incubated 15～90 minutes;
4) insulation after, the cooling discharge opeing, soap, wash.
The technological process of above-mentioned one bath two stage process dyeing is seen shown in Figure 4.
Wherein, described dye liquor 1 comprises REACTIVE DYES, electrolyte and auxiliary agent, and wherein electrolytical consumption is 1～60g/L, and the consumption of auxiliary agent is 0.2～5g/L;
Described electrolyte is a neutral electrolyte, as sodium chloride, sodium sulphate;
Described auxiliary agent is metal ion chelation agent, dye dispersant etc.;
Described dye liquor 2 comprises DISPERSE DYES, levelling agent and pH regulator agent, and wherein the consumption of DISPERSE DYES is by determining that according to being dyed shade the consumption of levelling agent is 0.1～5g/L.
Described levelling agent is the DISPERSE DYES levelling agent.
Described pH regulator agent is a kind of or its compound in glacial acetic acid, sodium acetate, citric acid, the natrium citricum etc.
In the dyeing of above-mentioned one bath two stage process, REACTIVE DYES is used alkaline agent or other active dye fixing agent fixation, color-fixing agent can be alkaline agent or other active dye fixing agent, and as sodium carbonate, sodium phosphate, substitute alkali etc., consumption is 1～30g/L., alkaline agent progressively adds in dyeing course in batches.
In the above-mentioned one bath two stage process dyeing, described temperature of soaping is 40～80 ℃, fully washing again after soaping.
Among the present invention, to described modified poly ester/cotton blended fabric carry out one bathe one-step method dyeing or one bath two stage process dyeing before, also comprise described BLENDED FABRIC carried out pre-treatment.
Described pre-treatment can be adopted the pre-treatment process of common polyester cotton.
Described pre-treatment process comprises bleaching process.
Among the present invention, bleaching process mainly carries out at cotton fiber, and purpose is to remove the impurity of fiber surface, improves the whiteness of fiber, can also remove the impurity such as slurry, finish of yam surface.
Described bleaching process can use alkali+hydrogen peroxide bleaching, hypochlorite bleach, chloro-oxygen is two floats, and preferably uses the bleaching process of alkali+hydrogen peroxide.
The colouring method of modified poly ester/cotton blended fabric provided by the invention, owing to be embedded with the polyamide group in the polyester fiber macromolecular chain segment, the performance that the available ACID DYES that has this modified poly ester dyes and uses DISPERSE DYES normal temperature to dye, dyeing temperature is below 100 ℃, can obviously cut down the consumption of energy, and can realize modified poly ester and cotton one-bath process when using this modified poly ester and cotton to carry out blending, and simplified dyeing flow, help energy-saving and emission-reduction.
Because it is non-interfering that Dyeing of Cotton Fabric with Reactive Dyes and DISPERSE DYES are dyed polyester, as long as the dyestuff coupling is proper, we can say that the color distortion of two kinds of fibers can control arbitrarily, these also all are mature technologies to conventional polyester/cotton blended fabric, but used modified poly ester owing in the fabric among the present invention, and reduced dyeing temperature.The colouring method of modified poly ester/cotton blended fabric provided by the invention can be realized following three kinds of Colors of polyester and cotton blended fabric:
One, polyester and cotton same colour system, but be of different shades.
Its two, polyester and cotton are heterochromatic fully, select the DISPERSE DYES and the REACTIVE DYES of different colour systems for use, as DISPERSE DYES is that disperse yellow 4G, REACTIVE DYES are reactive red FN-2BL, then cotton color is red, and the polyester color is yellow, has reached polyester-cotton blend one and has bathed double-colored pattern effect;
Its three, polyester and cotton are homochromy fully, select DISPERSE DYES and REACTIVE DYES with colour system for use, are reactive black G as DISPERSE DYES for disperseing black HL, REACTIVE DYES, then cotton and polyester is black, has reached the homochromy effect of polyester-cotton blend one bath.
Compared with prior art, the present invention has following beneficial effect:
(1) because modified poly ester and cotton blending that polyester cotton of the present invention adopts, this modified poly ester is owing to be embedded with the polyamide group in the molecule segment, available ACID DYES or/and DISPERSE DYES dye at normal temperature, be that dyeing temperature is below 100 ℃, especially this modified poly ester is the polymer that multiple polyester and nylon 6 copolymerization form, it has, and TENSILE STRENGTH is big, tension fracture elongation rate is high, advantages such as even dyeing; After this modified poly ester and cotton blending, can realize that one bathes homochromy or one bathes multiple Colors such as heterochromatic;
(2) polyester cotton of the present invention does not need special auxiliary agent, just can realize dying special dark effect in the temperature below 100 ℃;
When (3) modified poly ester and cotton blended fabric being carried out one-bath process, used ACID DYES, the kind of DISPERSE DYES are wider, its DISPERSE DYES is without any need for carrier, by dyestuff apolegamy, adjustment programming rate, control levelling agent or retarding agents consumption control polyester and cotton aberration, this colouring method environmental pollution is little, simplify dyeing flow, helped energy-saving and emission-reduction.
Description of drawings
Fig. 1 is differential scanning calorimetry (DSC) collection of illustrative plates of modified poly ester of the present invention;
Fig. 2 is the technological process of a bath one-step method dyeing of the present invention;
Fig. 3 is the technological process of one bath two stage process dyeing of the present invention;
Fig. 4 is another technological process of one bath two stage process dyeing of the present invention.
The specific embodiment
Below be the specific embodiment of the present invention, described embodiment is in order to further describe the present invention, rather than restriction the present invention.
Embodiment 1
One, fabric
Fabric is modified poly ester/cotton 30/70 BLENDED FABRIC, and fabric weight is 185g/m
2, plain weave construction.
The structural formula of described modified poly ester has following construction unit:
10＜m wherein
1＜100; 1＜m
2＜70.
Two, dyeing
1) fabric is carried out pre-treatment, described pre-treatment is this area alkali+hydrogen peroxide bleaching process commonly used;
2) will through the textile impregnation of pre-treatment in dye bath 25 ℃ be lowered to and dye, wherein contain disperse blue E-4R 0.8%, glacial acetic acid 1g/L, levelling agent 0.3g/L in the dye bath;
3) being warming up to the dye bath temperature with the speed of 2 ℃/min then is 98 ℃, is incubated 20 minutes, discharge opeing, washing;
4) in dye bath, add reactive navy blue L-3G 1.2% (o.w.f), sodium chloride 15g/L, soda ash 5g/L, chelated dispersants 0.5g/L, being warming up to the dye bath temperature with the speed of 0.5 ℃/min again is 45 ℃, add fixation and carry out fixation, be incubated 30 minutes then with compound alkali 3～10g/L;
5) after the insulation, the cooling discharge opeing is soaped under 40 ℃, more fully washing.
After tested, the dried wet-milling COLOR FASTNESS of dyeing back fabric is 4 grades, and the ANTIPILLING grade is the 4-5 level.
Embodiment 2
One, fabric
Fabric is modified poly ester/cotton 70/30 blended fabric, fabric weight 210g/m
2, institutional framework is a rib stitch.
The structural formula of described modified poly ester has following construction unit:
10＜m wherein
1＜100; 1＜m
2＜70,0＜m
3＜5.
Two, dyeing
1) with textile impregnation in dye bath 20 ℃ be lowered to and dye, wherein contain reactive red FN-2BL 1.0%, sodium sulphate 10g/L, soda ash 4g/L, chelated dispersants 1g/L in the dye bath;
2) being warming up to the dye bath temperature with the speed of 1.0 ℃/min then is 60 ℃, adds soda ash 6g/L, be incubated 30 minutes, and discharge opeing is washed;
3) add disperse yellow 4G 1.5% (o.w.f) in dye bath, regulate dye bath pH value to 5 with glacial acetic acid and sodium acetate, being warming up to the dye bath temperature with the speed of 2 ℃/min again is 100 ℃, is incubated 20 minutes;
4) after the insulation, the cooling discharge opeing is soaped at 40 ℃, more fully washing.
After tested, the dried wet-milling COLOR FASTNESS of dyeing back fabric is the 4-5 level, and the ANTIPILLING grade is the 4-5 level.
Embodiment 3
One, fabric
Fabric is modified poly ester/cotton 10/90 blended fabric, fabric weight 220g/m
2, eyelet stitch.
The structural formula of described modified poly ester has following construction unit:
10＜m wherein
1＜100; 1＜m
2＜70,0＜m
3＜5,0＜m
4＜5.
Two, dyeing
1) with textile impregnation in dye bath 20 ℃ go into to dye, wherein contain reactive black G 2.3% (o.w.f), sodium chloride 20g/L, sodium carbonate 5g/L, chelated dispersants 1.5g/L in the dye bath;
2) being warming up to the dye bath temperature with the speed of 0.8 ℃/min then is 60 ℃, adds fixation alkali 2g/L, and operation 30min carries out fixation;
3) after the fixation, it is some directly to add glacial acetic acid in dye bath, disperses black HL 0.5%, and being warming up to the dye bath temperature with the speed of 1.5 ℃/min behind the running 10min is 100 ℃, is incubated 30 minutes;
4) after the insulation, the cooling discharge opeing is soaped at 60 ℃, more fully washing.
After tested, the dry grinding COLOR FASTNESS of dyeing back fabric is 4 grades, and the wet-milling COLOR FASTNESS is 3.5 grades, and the ANTIPILLING grade is the 4-5 level.
Embodiment 4
One, fabric
Fabric is modified poly ester/cotton 50/50 blended fabric, fabric weight 220g/m
2, eyelet stitch.
The structural formula of described modified poly ester has following construction unit:
10＜m wherein
1＜100; 1＜m
2＜70,0＜m
3＜5,0＜m
4＜5.
Two, dyeing
1) with textile impregnation in dye bath 20 ℃ be lowered to and dye, wherein contain reactive yellow XL 1.8% (o.w.f), disperse yellow RL 1.5%, sodium sulphate 20g/L, sodium carbonate 3g/L, chelated dispersants 1.5g/L in the dye bath;
2) being warming up to the dye bath temperature with the speed of 0.8 ℃/min then is 85 ℃, adds fixation alkali 2.5g/L, operation 20min;
3) being warming up to the dye bath temperature with the speed of 1.0 ℃/min then is 100 ℃, is incubated 20 minutes;
4) cooling discharge opeing is soaped at 60 ℃, more fully washing.
After tested, the dry grinding COLOR FASTNESS of dyeing back fabric is 4 grades, and the wet-milling COLOR FASTNESS is 3.5 grades, and the ANTIPILLING grade is the 3-4 level.
Embodiment 5
One, fabric
Fabric is modified poly ester/cotton 50/50 blended fabric, fabric weight 220g/m
2, eyelet stitch.
The structural formula of described modified poly ester has following construction unit:
10＜m wherein
1＜100; 1＜m
2＜70,0＜m
4＜5.
Two, dyeing
1) with textile impregnation in dye bath 20 ℃ be lowered to and dye, wherein contain reactive red L-4B 0.7% (o.w.f), disperse yellow H-4GL 1.2%, sodium chloride 10g/L, sodium carbonate 5g/L, chelated dispersants 0.5g/L in the dye bath;
2) being warming up to the dye bath temperature with the speed of 0.5 ℃/min then is 40 ℃, adds fixation alkali 2.5g/L, operation 20min;
3) being warming up to the dye bath temperature with the speed of 3.0 ℃/min then is 95 ℃, is incubated 10 minutes;
4) cooling discharge opeing is soaped at 75 ℃, more fully washing.
After tested, the dry grinding COLOR FASTNESS of dyeing back fabric is 4 grades, and the wet-milling COLOR FASTNESS is 3.5 grades, and the ANTIPILLING grade is the 3-4 level.
Embodiment 6
One, fabric
Fabric is modified poly ester/cotton 50/50 blended fabric, fabric weight 220g/m
2, eyelet stitch.
The structural formula of described modified poly ester has following construction unit:
10＜m wherein
1＜100; 1＜m
2＜70,0＜m
4＜5.
Two, dyeing
1) with textile impregnation in dye bath 20 ℃ be lowered to and dye, wherein contain reactive orange BES 2.1% (o.w.f) in the dye bath, disperse golden yellow SE-3B 1.9%, sodium sulphate 15g/L, sodium carbonate 4g/L, chelated dispersants 1.0g/L;
2) being warming up to the dye bath temperature with the speed of 3 ℃/min then is 60 ℃, adds fixation alkali 2.5g/L, operation 20min;
3) being warming up to the dye bath temperature with the speed of 0.5 ℃/min then is 98 ℃, is incubated 60 minutes;
4) cooling discharge opeing is soaped at 75 ℃, more fully washing.
After tested, the dry grinding COLOR FASTNESS of dyeing back fabric is 4 grades, and the wet-milling COLOR FASTNESS is 3.5 grades, and the ANTIPILLING grade is the 3-4 level.
Embodiment 7
One, fabric
Fabric is modified poly ester/cotton 30/70 BLENDED FABRIC, and fabric weight is 185g/m
2, plain weave construction.
The structural formula of described modified poly ester has following construction unit:
10＜m wherein
1＜100; 1＜m
2＜70.
Two, dyeing
1) fabric is carried out pre-treatment, described pre-treatment is this area alkali+hydrogen peroxide bleaching process commonly used;
2) will through the textile impregnation of pre-treatment in dye bath 25 ℃ be lowered to and dye, wherein contain disperse scarlet BB 0.8%, glacial acetic acid 1.2g/L, levelling agent 0.2g/L in the dye bath;
3) being warming up to the dye bath temperature with the speed of 1 ℃/min then is 95 ℃, is incubated 15 minutes, discharge opeing, washing;
4) in dye bath, add reactive scarlet B-3G 1.5% (o.w.f), sodium chloride 10g/L, soda ash 5g/L, chelated dispersants 0.5g/L, being warming up to the dye bath temperature with the speed of 3 ℃/min again is 40 ℃, add fixation and carry out fixation, be incubated 15 minutes then with compound alkali 3～10g/L;
5) after the insulation, the cooling discharge opeing is soaped under 40 ℃, more fully washing.
After tested, the dried wet-milling COLOR FASTNESS of dyeing back fabric is 4 grades, and the ANTIPILLING grade is the 4-5 level.
Embodiment 8
One, fabric
Fabric is modified poly ester/cotton 30/70 BLENDED FABRIC, and fabric weight is 185g/m
2, plain weave construction.
The structural formula of described modified poly ester has following construction unit:
10＜m wherein
1＜100; 1＜m
2＜70.
Two, dyeing
1) fabric is carried out pre-treatment, described pre-treatment is this area alkali+hydrogen peroxide bleaching process commonly used;
2) will through the textile impregnation of pre-treatment in dye bath 25 ℃ be lowered to and dye, wherein contain disperse grey N 0.8%, glacial acetic acid 0.8g/L, levelling agent 0.2g/L in the dye bath;
3) being warming up to the dye bath temperature with the speed of 3 ℃/min then is 100 ℃, is incubated 60 minutes, discharge opeing, washing;
4) in dye bath, add active purple k-3r 1.8% (o.w.f), sodium chloride 15g/L, soda ash 8g/L, chelated dispersants 0.5g/L, being warming up to the dye bath temperature with the speed of 2 ℃/min again is 90 ℃, add fixation and carry out fixation, be incubated 90 minutes then with compound alkali 3～10g/L;
5) after the insulation, the cooling discharge opeing is soaped under 40 ℃, more fully washing.
After tested, the dried wet-milling COLOR FASTNESS of dyeing back fabric is 4 grades, and the ANTIPILLING grade is the 4-5 level.
Embodiment 9
One, fabric
Fabric is modified poly ester/cotton 10/90 blended fabric, fabric weight 220g/m
2, eyelet stitch.
The structural formula of described modified poly ester has following construction unit:
10＜m wherein
1＜100; 1＜m
2＜70,0＜m
3＜5,0＜m
4＜5.
Two, dyeing
1) with textile impregnation in dye bath 20 ℃ go into to dye, wherein contain reactive orange 4 1.3% (o.w.f), sodium chloride 10g/L, sodium carbonate 5g/L, chelated dispersants 0.5g/L in the dye bath;
2) being warming up to the dye bath temperature with the speed of 0.5 ℃/min then is 40 ℃, adds fixation alkali 1g/L and carries out fixation;
3) after the fixation, it is some directly to add glacial acetic acid in dye bath, disperse orange SE-3RL 0.3%, and being warming up to the dye bath temperature with the speed of 1.0 ℃/min behind the running 10min is 95 ℃, is incubated 15 minutes;
4) after the insulation, the cooling discharge opeing is soaped at 60 ℃, more fully washing.
After tested, the dry grinding COLOR FASTNESS of dyeing back fabric is 4 grades, and the wet-milling COLOR FASTNESS is 3.5 grades, and the ANTIPILLING grade is the 4-5 level.
Embodiment 10
One, fabric
Fabric is modified poly ester/cotton 10/90 blended fabric, fabric weight 220g/m
2, eyelet stitch.
The structural formula of described modified poly ester has following construction unit:
10＜m wherein
1＜100; 1＜m
2＜70,0＜m
3＜5,0＜m
4＜5.
Two, dyeing
1) with textile impregnation in dye bath 20 ℃ go into to dye, wherein contain active purple k-3r 1.5% (o.w.f), sodium chloride 15g/L, sodium carbonate 5g/L, chelated dispersants 1.5g/L in the dye bath;
2) being warming up to the dye bath temperature with the speed of 3 ℃/min then is 80 ℃, adds fixation alkali 2g/L operation 20min and carries out fixation;
3) after the fixation, it is some directly to add glacial acetic acid in dye bath, and disperse violet FCN 0.3%, and being warming up to the dye bath temperature with the speed of 3.0 ℃/min behind the running 10min is 98 ℃, is incubated 60 minutes;
4) after the insulation, the cooling discharge opeing is soaped at 60 ℃, more fully washing.
After tested, the dry grinding COLOR FASTNESS of dyeing back fabric is 4 grades, and the wet-milling COLOR FASTNESS is 4 grades, and the ANTIPILLING grade is the 4-5 level.
Claims (10)
1. modified poly ester/cotton blended fabric, described BLENDED FABRIC is to be formed by modified poly ester and cotton blending, described modified poly ester has following construction unit:
1＜m wherein
1＜160, preferred 10＜m
1＜100; 1＜m
2＜70, preferred 10＜m
2＜30; 0≤m
3＜20, preferred 0≤m
3＜10, more preferably 0≤m
3＜5; 0≤m
4＜20, preferred 0≤m
4＜10, more preferably 0≤m
4＜5.
2. BLENDED FABRIC according to claim 1 is characterized in that m
3And m
4Be not 0 simultaneously.
3. BLENDED FABRIC according to claim 1 and 2 is characterized in that, the content of modified poly ester is 10～70% in the described BLENDED FABRIC.
4. the colouring method of any described BLENDED FABRIC of claim 1-3 is characterized in that, this method is bathed one-step method dyeing or one bath two stage process dyeing at normal temperatures fabric being carried out one with REACTIVE DYES and DISPERSE DYES.
5. the colouring method of BLENDED FABRIC according to claim 4 is characterized in that, described one bathes one-step method dyeing comprises the steps:
1) textile impregnation room temperature in dye bath is gone into to dye, wherein contain dye liquor in the dye bath;
2) being warming up to the dye bath temperature with the speed of 0.5～3 ℃/min then is 40～85 ℃, fixation, and being warming up to the dye bath temperature with the speed of 0.5～3 ℃/min again is 95～100 ℃, is incubated 10～60 minutes;
3) insulation after, the cooling discharge opeing, soap, wash.
6. the colouring method of BLENDED FABRIC according to claim 4 is characterized in that, described one bath two stage process dyeing comprises the steps:
1) textile impregnation room temperature in dye bath is gone into to dye, wherein contain dye liquor 1 in the dye bath;
2) being warming up to the dye bath temperature with the speed of 0.5～3 ℃/min then is 40～90 ℃, and fixation is incubated 15～90 minutes, discharge opeing, washing;
3) add dye liquor 2 in dye bath, being warming up to the dye bath temperature with the speed of 1～3 ℃/min again is 95～100 ℃, is incubated 15～60 minutes;
4) insulation after, the cooling discharge opeing, soap, wash;
Perhaps described one bath two stage process dyeing comprises the steps:
1) textile impregnation room temperature in dye bath is gone into to dye, wherein contain dye liquor 2 in the dye bath;
2) being warming up to the dye bath temperature with the speed of 1～3 ℃/min then is 95～100 ℃, is incubated 15～60 minutes, discharge opeing, washing;
3) add dye liquor 1 in dye bath, being warming up to the dye bath temperature with the speed of 0.5～3 ℃/min again is 40～90 ℃, and fixation is incubated 15～90 minutes;
4) insulation after, the cooling discharge opeing, soap, wash.
7. colouring method according to claim 5, it is characterized in that, described dye liquor comprises dyestuff, electrolyte, auxiliary agent and pH regulator agent, described dyestuff is REACTIVE DYES and DISPERSE DYES, wherein dye dosage is determined according to dying shade, electrolytical consumption is 1～60g/L, and the consumption of auxiliary agent is 02～5g/L.
8. colouring method according to claim 6 is characterized in that, described dye liquor 1 comprises REACTIVE DYES, electrolyte and auxiliary agent, and wherein electrolytical consumption is 1～60g/L, and the consumption of auxiliary agent is 02～5g/L;
Described dye liquor 2 comprises DISPERSE DYES, levelling agent and pH regulator agent, and wherein the consumption of DISPERSE DYES is by determining that according to being dyed shade the consumption of levelling agent is 0.1～5g/L.
9. according to claim 5 or 6 described colouring methods, it is characterized in that REACTIVE DYES is used alkaline agent or active dye fixing agent fixation, and the color-fixing agent consumption is 1～30g/L.
10. according to claim 5 or 6 described colouring methods, it is characterized in that described temperature of soaping is 40～80 ℃.
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| CN102162197A (en) * | 2011-03-07 | 2011-08-24 | 浙江理工大学 | Method for dip-dyeing polyester rayon (cotton) fabrics or yarns with disperse and reactive dyes by one-bath process |
| CN102936790A (en) * | 2012-09-29 | 2013-02-20 | 浙江港龙织造科技有限公司 | Processing technology of multifunctional photocatalytic knitwear |
| CN103469633A (en) * | 2013-09-16 | 2013-12-25 | 上海大学 | Dyeing method of super cotton-like polyester fiber/true silk blended fabric |
| CN103643547A (en) * | 2013-11-06 | 2014-03-19 | 上海工程技术大学 | Method for dyeing blended fabric of polysulfonamide and viscose glue |
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| CN1376724A (en) * | 2002-03-29 | 2002-10-30 | 东华大学 | Polyester chips and fibres dyed easily by disperse dye and preparing process thereof |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1376724A (en) * | 2002-03-29 | 2002-10-30 | 东华大学 | Polyester chips and fibres dyed easily by disperse dye and preparing process thereof |
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| CN102936790B (en) * | 2012-09-29 | 2014-03-12 | 浙江港龙织造科技有限公司 | Processing technology of multifunctional photocatalytic knitwear |
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