A kind of printing method of copolyesters Pai Site fabric
Technical field
The invention belongs to the field of printing and dyeing of copolyester fiber, particularly a kind of printing method of copolyesters Pai Site fiber.
Background technology
Premium properties such as polyester fiber has that fracture strength is big, elastic modelling quantity is high, resilience is moderate, HEAT SETTING is excellent, heat-resisting and light resistance is good; Dacron fabric is stable to weak acid, alkali; Corrosion-resistant; One of have good wash and wear property, character such as good anti-organic solvent, soap, washing agent, bleaching liquid, oxidant, so in the synthetic fiber that polyester fiber has become is with the fastest developing speed, output is the highest.
Because the normal polyester fibrous molecular structure is tight, the degree of crystallinity and the degree of orientation are high, lack polar group; Therefore, its dyeing often needs under the condition of high temperature (120~135 ℃) high pressure, to carry out, to realize higher dye-uptake; Consumed energy not only; Production security is poor, and influences the feel of polyester fiber, has restricted its serviceability.The BLENDED FABRIC of normal polyester fiber and other natural fabric, regenerated celulose fibre is co-bathing dyeing at normal temperatures.Yet, because various textile fabrics, no matter be that natural fabric or chemical fibre all have merits and demerits separately; Different fiber blends with interweave, can bring into play fiber advantage separately, overcome its shortcoming; Realize performance complement, satisfy people taking the requirement that textiles increases day by day.Through reasonably combined raw material, means such as adopt blending or interweave make product design abundanter, and product structure more becomes rationally, and can reduce production costs, and again the multicomponent fibre fabric is carried out the dyeing and finishing post-process treatment, obtains the elaboration of weaving.Taking the textiles Development Trend is chemical fibre and natural fibre blended more and more with the product that interweaves, and component is more and more, so the dyeing of the normal temperature and pressure of polyester fiber just becomes the essential problem that solves.
Through with the monomer that has amphipathic cationic dye groups copolycondensation together, can obtain cationic dye capable of dyeing PETG copolyesters (CDP), but this copolyesters to have the normal pressure stainability, to also introduce flexible composition equally, be called ECDP.Though ECDP has solved normal pressure stainability problem, it also exists some to be prone to such as short fiber that fluffing balloon, product flexibility are not good, the subsequent product exploitation needs through deficiencies such as alkali decrement treatment.
Modified polyester fiber-Pai Site of new generation (PARSTER) fiber of succeeding in developing is recently mainly made by pure and mild the benzene binary acid dibasic ester-5-sodium sulfonate of binary aliphatic of band side chain or the copolyesters continuous polymerization and the direct fabrics of potassium modification.The Pai Site fiber is owing to introduced flexible group in the big molecule, and the fiber macromolecular structure is more more loose than CDP, ECDP, and interior phase accessibility increases, the diffusion of dyestuff in fiber and with sulfonic acid group combine more easy.Reduced copolyesters crystal property and vitrification point in addition yet, made fiber have ultra soft feel, fabric does not need alkali treatment, and staple fibre also has PILLING RESISTANCE.Its manufacture process does not have specific (special) requirements to equipment, and with low cost, is prone to realize suitability for industrialized production.Compare with CDP, ECDP, the PARSTER fiber is more suitable for blending such as other natural fabrics of non-refractory such as hair, silk or interweaves forming the product of multiple different-style, can avoid the dyeing damage of natural fabric preferably.
Stamp is a kind of local dyeing, but is different from dyeing, and its printing effect has confidential relation with quilt seal fabric, printing method and print paste.Print paste is made up of dyestuff, thickener and chemical assistant.
At present, the relevant report that does not also have the printing method of polyester Pai Site fabric.
Summary of the invention
Technical problem to be solved by this invention provides a kind of printing method of copolyesters Pai Site fabric, utilizes the printing technology of cation dyes to the Pai Site fabric, so that the applying of Pai Site fiber, service society better.
The printing method of a kind of copolyesters Pai Site fabric of the present invention comprises:
(1) elder generation 1~2wt% cation dyes furnishing pulpous state, adds 1.5~2.5wt% acetic acid, 1wt% tartaric acid with 1.5~3.5wt% moisture absorption cosolvent then; 1wt% sodium chlorate and 15~29wt%80~100 ℃ hot water; Stir, after dyestuff fully dissolves, at once said mixture is joined in the former paste of 60~70wt%; Stir, make mill base.
(2) with the Pai Site fabric desizing, the Pai Site textile printing after using (1) gained mill base to destarch then, oven dry; Put into loose formula and evaporate equipment and evaporate, then with 40~70 ℃ the solution washing that contains 1227 surfactant 2g/L, good fortune; Washing, oven dry at last promptly gets.
Used cation dyes are selected from cationic red in the above-mentioned steps (1), cationic yellow, and cationic blue, one or more in the cationic black dyestuff, wherein, cationic red comprises GL-N, SD-GRL, AFF, RGLN 3R, X-GTL, X-GRL; Cationic yellow comprises D-2RL, SD-10GFF, E-3RD, SD-5GL; Cationic blue comprises SD-GSL, M-RL; Cationic black comprises SD-FBL, X-O, X-RL.
Moisture absorption cosolvent in the above-mentioned steps (1) is ancient upright new A (dihydroxyethylsulfide) or isopropyl alcohol.
Former paste in the above-mentioned steps (1) is selected synthetic gum tragacanth for use, can not use the former paste of positive lotus property.What synthetic gum tragacanth adopted is that Chinese honey locust bean powder etherificate forms, just the hydroxyethyl saponin gum powder.Boil and stick with paste prescription: hydroxyethyl saponin gum 4wt%, acetic acid (volume ratio 98%) 0~0.4wt%, hot water 96~95.6wt%.Boil the paste process: under stirring fast, the hydroxyethyl saponin gum powder slowly is sprinkled in the hot water of putting well in advance (80~90 ℃), stirs 2~3h to transparent no particle, cooling; The pH value that becomes to stick with paste the former paste in back is 8~8.5, uses the acetic acid neutralization to be pH=7~8, and the formalin 200mL that adds 40wt% again is anticorrosion, subsequent use.
Destarch process in the above-mentioned steps (2) is: the Pai Site fabric is immersed in the aqueous solution that contains leveling agent o, penetrating agent JFC, walks 8 roads for 60 ℃, cold water 4 roads take out then; Wherein the concentration of leveling agent o in the aqueous solution is 0.5 grams per liter, and the concentration of penetrating agent JFC in the aqueous solution is 0.5 grams per liter.
A pair of batching axle is housed on the groove of dye jigger or rinsing machine, can changes the master, passive of two axles through the gears engaged device, fabric is gone into groove by passive cloth beam debatching, and again around to active batching axle, running once is called together like this.
The color paste consumption of stamp is 65~100g/m in the above-mentioned steps (2)
2
It is cylinder steamer or Song Shichang ring continuous steaming machine that loose formula in the above-mentioned steps (2) is evaporated equipment.
The condition of evaporating in the above-mentioned steps (2) is: steam pressure 39.28~78.56kPa, 30~40min; Or under the normal pressure,, steam 15min at 130 ℃; Or under the normal pressure,, steam 30min at 103~105 ℃.
Former paste can not be selected anionic sodium alginate paste for use, select for use and embrace a water-based and a good penetrability, puts forth effort high former paste to group's silk is extremely viscous, generally selects dextrin or plant seed glue for use.
Sodium chlorate is oxidant, mainly prevent former paste when decatize reducibility and cause that the dyestuff look becomes.
When colorant match, also should select 5 straight identical or close dyestuffs to piece together mutually, in order to avoid cause changes of shade during decatize.
The process of sizing mixing earlier with the moisture absorption cosolvent dyestuff furnishing pulpous state, add acetic acid then and 80~100 ℃ of hot water (preferably boiling water) fully dissolve dyestuff, then join while hot stir in the former paste of stamp of slant acidity for use.With acetic acid or tartaric acid hydrotropy, can not only stablize mill base, also can improve tinctorial yield and vividness, improve the stability and the pH value of regulating mill base of mill base simultaneously.
Pai Site is with the cation dyes stamp time, and dye dosage must strictly be controlled, and too much can cause degree of fixation to descend, and the dyestuff of set can not fall contamination in vain when post processing.The highest consumption of general dyestuff is 1.5~2%, and indivedual dyestuffs are 1%.
Because cation dyes are slower to direct height, the diffusion of Pai Site fiber, so the time of evaporating in the stamp is longer.If keep the flexibility of Pai Site fiber, need carry out at a lower temperature, easy deformation when temperature is higher, thus should adopt loose formula to evaporate equipment, like cylinder steamer or Song Shichang ring continuous steaming machine etc.
Behind the textile printing, steaming time is longer, generally decatize 20~30min under normal pressure.
Beneficial effect
1, printing method of the present invention is easy and simple to handle, is fit to a large amount of production.
2, among the present invention in order to keep the flexibility of Pai Site fiber, adopt loose formula to evaporate equipment and evaporate.
3, the present invention utilizes cation dyes to Pai Site fabric stamp, so that society is served in applying of Pai Site fiber better.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in the restriction scope of the present invention.Should be understood that in addition those skilled in the art can do various changes or modification to the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment 1
Pai Site plain weave thing → destarch (leveling agent o 0.5 grams per liter, penetrating agent JFC 0.5 grams per liter are walked 8 roads for 60 ℃, cold water 4 roads) → stamp (mill base amount 75g/m
2) (mill base is write out a prescription as follows) → oven dry → decatize ((cylinder steam box, steam pressure 39.28~78.56kPa, 30~40min or constant-pressure and high-temperature decatize; 130 ℃, 15min, or 103~105 ℃; 30min) → cold water washing (adding 1227 surfactant 2g/L, 40 ℃) → soap → wash → dry.
Mill base is write out a prescription as follows:
Cation dyes 1.5wt%
Moisture absorption cosolvent 2.5wt%
Glacial acetic acid 2wt%
Urea 5wt%
The former paste of synthetic gum tragacanth 60wt%
Tartaric acid 1wt%
Sodium chlorate 1wt%
Hot water 27wt%
The paste process of boiling of the former paste of synthetic gum tragacanth is: under stirring fast; The hydroxyethyl saponin gum powder of 4wt% slowly is sprinkled in 80 ℃ of hot water of 95.6wt%; Stir 2h to transparent no particle, be cooled to paste after, using the volumetric concentration 98% vinegar acid for adjusting pH value of 0.4wt% is 7; It is anticorrosion to add mass concentration again and be 40% formalin 200mL, promptly gets.
Embodiment 2
Pai Site knitting single jersey fabric → destarch (leveling agent o 0.5 grams per liter, penetrating agent JFC 0.5 grams per liter, 60 ℃ of 60min) → stamp (mill base amount 65g/m
2) (mill base is write out a prescription as follows) → oven dry → decatize ((cylinder steam box, steam pressure 39.28~78.56kPa, 30~40min or constant-pressure and high-temperature decatize; 130 ℃, 15min, or 103~105 ℃; 30min) → cold water washing (adding 1227 surfactant 2g/L, 60 ℃) → soap → wash → dry.
Mill base is write out a prescription as follows:
Cation dyes 1wt%
Moisture absorption cosolvent 1.5wt%
Glacial acetic acid 1.5wt%
Urea 5wt%
The former paste of synthetic gum tragacanth 60wt%
Tartaric acid 1wt%
Sodium chlorate 1wt%
Hot water 29wt%
The paste process of boiling of the former paste of synthetic gum tragacanth is: under stirring fast; The hydroxyethyl saponin gum powder of 4wt% slowly is sprinkled in 85 ℃ of hot water of 95.8wt%; Stir 2h to transparent no particle, be cooled to paste after, using the volumetric concentration 98% vinegar acid for adjusting pH value of 0.2wt% is 7.5; It is anticorrosion to add mass concentration again and be 40% formalin 200mL, promptly gets.
Embodiment 3
Pai Site twill woven → destarch (leveling agent o 0.5 grams per liter, penetrating agent JFC 0.5 grams per liter are walked 8 roads for 60 ℃, cold water 4 roads) → stamp (mill base amount 100g/m
2) (mill base is write out a prescription as follows) → oven dry → decatize ((cylinder steam box, steam pressure 39.28~78.56kPa, 30~40min or constant-pressure and high-temperature decatize; 130 ℃, 15min, or 103~105 ℃; 30min) → cold water washing (adding 1227 surfactant 2g/L, 70 ℃) → soap → wash → dry.
Mill base is write out a prescription as follows:
Cation dyes 2wt%
Moisture absorption cosolvent 3.5wt%
Glacial acetic acid 2.5wt%
Urea 5wt%
The former paste of synthetic gum tragacanth 70wt%
Tartaric acid 1wt%
Sodium chlorate 1wt%
Hot water 15wt%
The paste process of boiling of the former paste of synthetic gum tragacanth is: under stirring fast; The hydroxyethyl saponin gum powder of 4wt% slowly is sprinkled in 90 ℃ of hot water of 96wt%, stirs 2h to transparent no particle, be cooled to paste after; It is anticorrosion to add mass concentration again and be 40% formalin 200mL, promptly gets.
Embodiment 4
Knitted cloth → the destarch of Pai Site rib-loop (leveling agent o 0.5 grams per liter, penetrating agent JFC 0.5 grams per liter, 60 ℃, 60min) → stamp (mill base amount 90g/m
2) (mill base is write out a prescription as follows) → oven dry → decatize ((cylinder steam box, steam pressure 39.28~78.56kPa, 30~40min or constant-pressure and high-temperature decatize; 130 ℃, 15min, or 103~105 ℃; 30min) → cold water washing (adding 1227 surfactant 2g/L, 60 ℃) → soap → wash → dry.
Mill base is write out a prescription as follows:
Cation dyes 1.5wt%
Moisture absorption cosolvent 2wt%
Glacial acetic acid 2.5wt%
Urea 5wt%
The former paste of synthetic gum tragacanth 70wt%
Tartaric acid 1wt%
Sodium chlorate 1wt%
Hot water 17wt%
The paste process of boiling of the former paste of synthetic gum tragacanth is: under stirring fast; The hydroxyethyl saponin gum powder of 4wt% slowly is sprinkled in 90 ℃ of hot water of 95.6wt%; Stir 2h to transparent no particle, be cooled to paste after, using the volumetric concentration 98% vinegar acid for adjusting pH value of 0.4wt% is 8; It is anticorrosion to add mass concentration again and be 40% formalin 200mL, promptly gets.