55results about How to "High desizing rate" patented technology

The invention mainly discloses a cotton type woven fabric continuous biochemical pretreatment technology, relating to the technical field of composite preparation of a composite biological enzyme preparation and a composite pretreatment preparation and the application of the composite preparation in the cotton type woven fabric pretreatment technology. The technology comprises the steps of: usingthe composite biological enzyme preparation (the preparation comprises amylase, pectinase, neutral cellulose enzyme, penetrating agent JFC and stabilizing agent) to pretreat the woven fabric, therebypartially or wholly removing starch size, pectin and the other natural or artificial impurities on the woven fabric, and improving the wettability of the woven fabric; and water washing and padding the composite pretreatment liquid (the liquid comprises composite pretreatment agent, hydrogen peroxide and refined penetrating agent); and water washing with steam, wherein the whiteness, the capillary effect, the size removing rate and the strength of a product are better than the normal technology. The technology also solves the problems of high sewage alkalinity, large energy consumption and bad product quality, and the like, in a normal pretreatment technology which takes caustic soda as a main raw material.

The invention relates to a cooperative pretreatment method for biological catalysis and controlled oxidation of cotton and cotton-type fabrics, comprising the following steps: (1) preparing a biological compound enzyme preparation, a biological enzyme synergist and a non-ionic surfactant into an enzyme working solution, wherein the pH of a processing bath is 6-7.5; padding the fabrics into the working solution; carrying out heat preservation; (2) washing the processed fabrics with cold water; padding the fabrics into a hydrogen peroxide bleaching solution containing the controlled decomposition additive of hydrogen peroxide; and steaming, washing with water and drying to obtain the finished products. In the method, high-density strong base is not required to serve as a scouring agent, thepH value of pretreatment waste water is 7-8, the chromaticity is low, the COD (Chemical Oxygen Demand) value is lowered by 30% compared with that of the traditional alkali kiering pretreatment technology, the water is saved by 10-30%, and the steam and electricity can be saved by 20%. The indexes (whiteness, capillary effect, water absorption, cotton seed hull strainaway rate, desizing rate, strong force and the like) of the processed cotton and cotton-type fabric all reach the quality indexes of a semi-product, cotton seed hulls can be completely removed, and the fabrics have vivid color andgood levelling property after being dyed.

The invention discloses a dyeing and finishing process of polyester and cotton blended fiber fabric. The process comprises pretreatment, presetting, modification treatment, dyeing, mordant removal, soaping, color fixing, after finishing, drying, sizing, calendaring and rolling. Snailase and alpha-amylase are adopted for pretreatment, modification treatment is adopted before dyeing, the polyester and cotton blended fabric is modified fundamentally, and the dye-uptake of the fabric is increased; in the dyeing procedure, fewer alkaline substances and inorganic salt are used, a dye leveler, substitution alkali, a migration inhibitor and a diffusant are added, the dye leveling performance is improved, natural dye is used, environmental pollution is avoided, and the environment-friendly requirement is met; self-cleaning treatment is added during aftertreatment, and the self-cleaning capacity, the crease-resistant performance, the wash durability and color fastness are improved; silk fibroin and sericin are adopted for afterfinish, and the anti-pilling performance and the antistatic performance of the fabric are provided; the whole process is environment-friendly and pollution-free.

The invention discloses a dyeing and finishing process for modal fabric. The process comprises the procedures of pretreatment, pre-setting, modification treatment, dyeing, soaping, fixation, after-finishing, drying, sizing, calendering and rolling. According to the invention, pretreatment is carried out by adopting ultrasonic wave, and a step of modification treatment is added; in the dyeing procedure, a base substituent SA is used, use of a large quantity of alkaline substances and inorganic salt is avoided, nature dye is adopted, and colophony powder is added as a fixing agent, so that the color fixing effect is enhanced, environmental pollution is avoided, and the requirement of green environmental protection is met; furthermore, montmorillonoid is adopted to carry out modification treatment and flame retardant treatment on the fabric, so that the flame retardancy of the fabric is high. According to the invention, a yellowing-resisting reagent is used in the procedures of pre-setting, sizing and after-finishing, so that the final fabric cannot become yellow easily.

The invention relates to a spinning and dyeing pretreatment auxiliary agent, which is prepared by adopting the following raw material components: 30 to 50 parts by weight of desizing agent, 5 to 20 parts by weight of alkali-resisting penetrant, and 4 to 10 parts by weight of complexing agent; the desizing agent is multi-alkyl amine salt; the alkali-resisting penetrant is an alkali-resisting nonionic surfactant; the complexing agent is hydroxy carboxylate. Further, the adopted raw material components also include 1 to 10 parts by weight of hydrogen peroxide stabilizer; the hydrogen peroxide stabilizer is organic phosphonate. The spinning and dyeing pretreatment auxiliary agent can be obtained through the preparation of successively mixing the raw material components, and the spinning and dyeing pretreatment auxiliary agent can be applied to a cold-batch method or open-width scouring-bleaching method spinning and dyeing pretreatment process. The spinning and dyeing pretreatment auxiliary agent can shorten the flow of the conventional spinning and dyeing pretreatment process, can reduce the energy consumption and material consumption in the pretreatment process, and can reduce the effluent volume; an obtained intermediate product of textile fabrics has good whiteness, capillary effect and desizing percentage.

The invention discloses a refining desizing process for a chemical fiber fabric, and relates to the technical field of textile printing and dyeing pretreatment, and the refining desizing process comprises the following steps: (1) pre-shrinking; (2) refining, wherein a refining liquid is composed of the components, by weight, of 12-16 parts of sodium hydroxide with the mass concentration of 32%, 0.3-0.7 part of sodium tripolyphosphate, 5-10 parts of a refining aid, 1-5 parts of trisodium phosphate, 3-8 parts of a penetrating agent, 6-12 parts of a chelating dispersant, 3-6 parts of sodium cocoyl methyl taurate, 2-5 parts of cocamidopropyl amine oxide, 3-7 parts of alkyl glycoside and 8-15 parts of isomeric alcohol polyoxyethylene ether; wherein the grinding aid comprises the components of sodium hydrogen sulfite, sodium silicate and alkyl sulfate in a mass ratio of 2: 3: 3; (3) water washing; (4) steaming; (5) enzyme water washing; and (6) shaping. According to the invention, the problems that the desizing effect of the chemical fiber fabric is poor, and the dye uptake and the dyeing uniformity are poor are solved; a refining agent is used for refining and desizing the chemical fiber fabric, the desizing rate is high, and the dye uptake and the leveling property are good.

The invention discloses a preparation process of an imitated tencel style fabric, which relates to the technical field of a weaving technology. Through the process of enzymatic treatment, desizing, rolling and presetting, sand washing, splitting, dehydration, scutching, fixed drying, oiling and flapping in air on a TR fabric, and a desizing agent C15H31O(CH2OCH2)15H is added during desizing, so that the general TR fabric is processed to the TR fabric having the tencel style and hand feeling.

The invention discloses a desizing liquid and a desizing method for a polyvinyl alcohol cotton blended fabric. The desizing liquid has the pH value between 11 and 12 and comprises the following components: 1 to 3g/L of sodium tartrate, 4 to 8g/L of hydrogen peroxide, 2 to 4mumol/L of binuclear manganese complexes, 1 to 3g/L of 4-(2-nonanoyl acyloxy ethyoxyl carbonyl oxygroup) sodium benzene sulfonate, 0.5 to 1.5g/L of N-carboxymethyl-N-methyl ferric glycine (III) sodium salt and proper amount of sodium hydroxide. When the desizing liquid is utilized for performing desizing treatment on the polyvinyl alcohol cotton blended fabric, the desizing rate is high as well as the obtained fabric is high in capillary effect and mechanical property, so that the implementation of the subsequent dyeing and printing process is facilitated and the subsequent dyeing and printing quality is guaranteed. In addition, the sizing slurry is removed effectively, so that the fabric handfeeling is improved.

The invention relates to a preparation method of starch-grafted composite glutin sizing, and belongs to the technical field of textile materials. By adding hydrogenated sheep oil and hydrogenated castor oil, composite sizing is prepared, and hydrogenated sheep oil and hydrogenated castor oil have emulsifying properties under the action of tridecanol polyoxyethylene ether and monoglyceride, can beevenly mixed in the sizing, play roles in plasticizing and improve the sizing percentage of the sizing. When grease is added in an adhesive containing polar groups, grease molecules can destroy physical crosslinking points of adhesive macromolecules and make it impossible for the polar groups of the macromolecules to establish interaction and hydrogen bonds, original non-moving chain segments begin to move, the vitrification temperature of serosas is reduced, and the serosas become softer. Besides, intervals between grease molecules make cohesive force between adhesive molecules reduced, a serosa structure thus relaxes, the strength is reduced, meanwhile the adhesive molecules are kept from fully moving close to fiber due to isolation of the grease molecules, and the desizing percentage ofthe sizing can be effectively improved.

The invention discloses denim flexible warp sizing slurry and method. The slurry comprises prime slurry and supplementary slurry; the prime slurry is prepared from raw materials of starch and a multi-component sizing material with a mass ratio of (1.2-1.3): 1, in addition, the prime slurry is further prepared from raw materials of wax oil, palmitic acid and water, wherein the mass ratio of the wax oil, the palmitic acid and the multi-component sizing material is (3-4): (4-6): 100, a sized yarn slurry film is smooth, complete, elastic, high in uniformity and good in abrasion performance, the slurry is stable in physical performance, has no skinning and layering and is stable viscosity, a yarn is endowed with good hairiness adhesion state, is easy to lease, and has special antistatic ability, the warp broken end is reduced, and the weaving efficiency is improved; and a denim fabric woven by the sized yarns is beautiful in color, good in glossiness, clean in cloth cover, soft in hand feeling and durable, and the drying procedure after yarn dyeing and water washing in the denim sizing and dyeing process is omitted, so that steam consumption for drying is saved.

The invention provides a chemical fiber desizing agent and a preparation method and use method thereof. The chemical fiber desizing agent has the advantages of no phosphorus, no alkylphenol ethoxylatecompounds (APEO), high biodegradability, high desizing rate and the like, can be used for a cold pile process and a flat-width desizing and washing process, reduces a large amount of steam energy consumption and the like, saves water, electricity and steam in comparison with a traditional high-temperature (100 DEG C) desizing process, better meets the environmental protection requirements and lightens the sewage treatment burden. Through the use method of the chemical fiber desizing agent, the desizing rate of terylene memory-like cloth reaches a level 8-9, wherein the highest level is level9.

The invention discloses desizing liquid for brocade silk fabric and a desizing method of the brocade silk fabric. The pH value of the desizing liquid for the brocade silk fabric is 11-12; and the desizing liquid consists of the following components: 1-3g/L of sodium gluconate, 4-8g/L of hydrogen peroxide, 2-4mumol/L of a dinuclear manganese complex, 1-3g/L of 4-(2-nonanoyloxyethoxycarbonyloxy) sodium benzene sulfonate, 0.5-1.5g/L of N-carboxymethyl-N-iron methylglycine (III) sodium salt and a proper amount of sodium hydroxide. By adopting the desizing liquid disclosed by the invention to perform desizing treatment on the brocade silk fabric, the desizing rate is high, the obtained desized fabric has a high capillary effect and a high mechanical performance and is favorable for performing successive dyeing and finishing technologies, and the successive dyeing and finishing quality is guaranteed; and moreover, the hand feeling of the fabric is improved since size is effectively removed.

The invention discloses a textile size recycling method. The method includes following steps: treating textile: cleaning floating dust on the surface of a textile raw material, and drying the textileraw material; sizing PVA size: soaking the textile raw material in the PVA size for sizing, and completing drying and spinning to obtain fabric A; performing ultrasonic cleaning: putting the fabric Ainto an ultrasonic cleaning tank, adding a proper amount of pure water into the ultrasonic cleaning tank, and controlling the ultrasonic cleaning tank for low-frequency cleaning; desizing: desizing the fabric A after going through ultrasonic cleaning to obtain desizing liquid and fabric B, filtering the desizing liquid, and pouring the desizing liquid into suction filtration equipment for suctionfiltration. Part of impurities in the fabric can be removed, so that improving of purity of the desizing liquid is facilitated, convenience is brought to recycling of the desizing liquid, recycling success rate and desizing rate are increased, waste liquid discharge is reduced, and environment protection is promoted.