75results about How to "Guaranteed shrinkage" patented technology

The invention discloses a low-temperature dyeing and finishing technology of cottonette. The technology comprises the following steps: pretreatment; preshaping; modification treatment; dyeing; mordant removing; soaping; color fixing; post-treatment; drying; shaping; calendaring; rolling. According to the technology, pretreatment is carried out through the adoption of helicase and alpha-amylase, and modification treatment is carried out before dyeing, so that the property of the cottonette is fundamentally modified, and the dye-uptake of the fabric is increased; during the dyeing procedure, large quantities of alkaline substances and inorganic salt are not used, and a levelling agent, a low-temperature dyeing accelerant, a migration inhibitor and a dispersing agent are added, so that the dye uniformity is improved; during the whole dyeing process, the temperature is lower than 80 DEG C, and the dyeing process belongs to low-temperature dyeing, so that energy consumption is reduced; self-cleaning treatment is added in post-treatment, so that the self-cleaning capacity, wrinkle resistance and water washable firmness of the fabric are improved; post-treatment is carried out through the adoption of silk fibroin and sericin, so that the pilling resistance and antistatic property of the cottonette are improved; the whole technology is environment-friendly and free of pollution.

The invention provides a low-temperature dyeing process of a fiber fabric. The low-temperature dyeing process comprises the processes of pretreatment, pre-sizing, dyeing, reduction clearing, fixing, softening treatment, drying, sizing, calendaring and rolling. In the dyeing process, the highest temperature does not exceed 100 DEG C, mild dyeing is carried out by using a gradual warming method and pH value regulation is carried out through a buffer solution, so that a proper acid environment required during the dyeing is satisfied and the dyeing effect is excellent; during the dyeing, a leveling agent is added to ensure that the dyeing is uniform; anhydrous sodium sulphate is added to postpone the dyeing process of the pigment and the temperature rises slowly at the same time, so that the uniform dyeing is ensured; a smoothing agent is added to prevent the scratching and local fibrillation; a penetrant and a diffusant are added to ensure that the penetration and the diffusion of the dyeing are relatively good; by means of the strict control in the aspects of temperature, acid, auxiliaries, time and the like, the low-temperature dyeing process of the fiber fabric has the advantages that the dyeing firmness is high, the dyeing is uniform, the dyeing stability is good and the effect is excellent at low temperature.

The invention provides a dyeing process of nylon fiber. The dyeing process comprises the following steps: pretreatment, presetting, dyeing soaping, color fixing, after finishing, drying, setting, calendering and winding. The dyeing process provided by the invention has the advantages that in the dyeing procedure, disperse dyes and acidic dyes are used for carrying out dyeing according to the own property of the nylon fiber, so that the dyeing effect is improved; the soaping and color-fixing processes are added, so that the dyeing firmness is good; in the color fixing process, environment-friendly formaldehyde-free TCD-R is adopted, and the fiber is dried in a step-by-step manner after color fixation, so that the firmness of the fiber is greatly improved; the after-finishing process is added, so that the color firmness and softness of the fabrics are improved and increased, the roughness of the fabrics is reduced, and further the fabrics are fluffy and elastic.

The invention provides a process for dyeing a silk fabric. The process comprises the steps of pre-treatment, pre-shaping, modifying treatment, dyeing, soaping, color fixing, post-arrangement, drying, shaping, calendering and rolling. According to the method, the fabric is modified in advance by chitosan to improve the dyeing rate, and the difficulty of the subsequent dyeing step is reduced; in the dyeing step, the chitosan is used as a mordant, and mangosteen hull serving as a natural dye is used and is free of poison and environmentally friendly; the dyeing firmness is good by additionally arranging the soaping and color fixing steps, environment-friendly formaldehyde-free TCD-R is adopted in the color fixing step, color-fixed fibers are stepwise dried, so that the fiber firmness degree is greatly improved; the post-arrangement process is additionally added, so that the color firmness and softness of the fabric is improved, the roughness of the fabric is reduced, and the fabric is fluffy and elastic.

The invention discloses a dyeing and finishing process for linen and cotton blended fiber fabric. The dyeing and finishing process comprises preprocessing, pre-sizing, modified processing, dyeing, mordant removing, soaping, color fixing, after finishing, drying, sizing, calendaring and rolling. Helicase, scouring enzyme and alpha-amylase are used for pretreatment, modification treatment is adopted before dyeing, the performance of linen and cotton blended fabric is modified fundamentally, and the dye-uptake rate is increased; the dyeing procedure does not require a large quantity of alkaline substances and inorganic salt, a leveling agent, substitutive alkali, a migration inhibitor and a dispersing agent are added, the dye uniformity is improved, environment pollution is avoided due to use of natural dye, and requirements for environmental protection are met; self-cleaning processing is added in the after finishing procedure, and the self-cleaning capacity, the crease-resistant performance, the washing resistance and the color fastness of the fabric are improved; crease-resistance finishing is added, and the crease-resistant performance of the fabric is improved; the whole process is environment-friendly and pollution-free.

The invention discloses a dyeing and finishing process for polyamide fabric. The provided process comprises pretreatment, pre-setting, modified processing, dyeing, soaping, dye fixation, post-finishing, drying, setting, calendering and rolling. Supersonic waves are employed for pretreatment, fabric is subjected to low temperature plasma processing before the dyeing step, then 2,3-epoxy propyl trimethyl ammonium chloride is employed for modification processing of the fabric, the dyeing degree of the fabric is raised, and difficulty of the subsequent dyeing step is lowered. During the dyeing step, a lot of alkaline substances and inorganic salt are not used, natural dyes are employed, colophony powder is added as a dye-fixing agent, the dye-fixing effect is enhanced, environment pollution is avoided, and green environmental protection requirements are met. Montmorillonite is employed for modification processing and flame retardation processing of the fabric, and thus the flame retardation of the fabric is high. Anti-yellowing reagents are used both in the pre-setting and setting steps, and thus the final fabric is not easy to turn yellow.

The invention provides a staining method for aramid fiber. The staining method comprises the steps of preprocessing, preshaping, staining, reduction clearing, color fixing, soft processing, drying, shaping, calendaring and rolling. According to the staining method, DEET is added in to serve as a dye carrier, and the staining effect and efficiency are improved; meanwhile, substitute alkali is adopted to replace a conventional soda substance, and not only is the usage amount decreased, but also the color fixing effect is enhanced to enable the washability of the aramid fiber is further enhanced; the reduction clearing and color fixing processes are added, and therefore the staining fastness is good; green and environmental-friendly non-formaldehyde TCD-R is adopted in the color fixing process, the fiber is dried step by step after color fixing, and therefore the firmness of the fiber is greatly improved; the soft processing process is added, the color fastness and softness of fabric are improved, the roughness of the fabric is reduced, and therefore the fabric is fluffy and rich in elasticity.

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 discloses a high-fixation high-flame retardation polyester fabric dyeing and finishing technology. The technology comprises pre-treatment, pre-setting, modification treatment, dyeing, soaping, dye fixation, after finishing, drying, setting, calendering and rolling. Supersonic wave is used for pre-treatment and a modification treatment process is used. In dyeing, a lot of alkaline substances and inorganic salts are avoided, natural dye is adopted and colophony powder is used as a dye-fixing agent so that dye fixation effects are improved, environmental pollution is avoided and environmental protection requirements are satisfied. Through modification and flame retardation treatment on the fabric by montmorillonite, fabric fire resistance is high. Through the dyeing and finishing technology, the high-fixation high-flame retardation polyester fabric is obtained.

The invention discloses a dyeing and finishing process for a mulberry silk fabric. The process comprises the following steps: pretreatment; pre-setting; modification; dyeing; soaping; dye fixation; afterfinishing; drying; setting; calendering; and rolling. According to the invention, supersonic waves are used for pretreatment, and the step of modification is increased; and natural dyes instead of a great amount of alkaline substances and inorganic salts are employed in dyeing, and rosin powder is added as a fixing agent, so dye fixation effect is reinforced, environmental pollution is avoided, and requirements of greenness and environmental protection are met. Through treatment by using the process, the mulberry silk fabric with high rubbing fastness and high dye fixation degree can be obtained.

The invention discloses a polyamide fabric modifying, dyeing and finishing process. The process comprises the steps of pretreatment, pre-setting, modification treatment, dyeing, soaping, color fixing, after treatment, drying, setting, calendering and rolling. Helicase and alpha-amylase are adopted for carrying out pretreatment, mixed liquor of nanometer titanium dioxide, gamma-(2, 3-epoxypropoxy) trimethoxypropylsilane and caprolactam is adopted for modifying performance of polyamide fabric fundamentally, and the dye-uptake rate of the fabric is increased; in the dyeing working procedure, a large number of alkaline substances and inorganic salts are not used, a leveling agent and a dispersing agent are added, and dyeing levelness is improved; meanwhile, as rosin powder is added to serve as a color fixing agent, the color fixing effect is enhanced, environmental pollution is avoided, and the requirement for environmental protection is met; moreover, montmorillonite is adopted for carrying out modifying and flame retarding on the fabric, and therefore the fire retarding property of the fabric is high; anti-yellowing reagents are used in the presetting and setting steps, and therefore the final fabric is not prone to yellowing.

The invention discloses an efficient dyeing and finishing process for a chemical fiber fabric, which comprises the procedures of modification treatment, one-bath scouring dyeing, soaping, fixation, after finishing, drying, sizing, calendering and rolling. According to the invention, pretreatment is carried out by adopting ultrasonic wave; before the procedure of dyeing, the fabric is subjected to low-temperature plasma treatment, and then 2, 3-glycidyl trimethyl ammonium chloride is adopted for carrying out modification treatment on the fiber fabric, so that the degree of dyeing of the fabric is increased, and the difficulty of subsequent dyeing step is lowered; since one-bath scouring dyeing is adopted, the efficiency is increased, and the cost is lowered; in the dyeing procedure, 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 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 procedure of sizing, so that the final fabric cannot become yellow easily.

The invention belongs to the technical field of pig casting machines for continuously producing casting pigs, and in particular relates to an iron alloy grain casting machine, which consists of a chain type slope conveyor, a grain casting die, a slurry spraying mechanism, a water cooling mechanism, a shocking device, an iron alloy liquid pouring insulation chute, a finished grain casting product receiving hopper and an electric control device, wherein the chain type slope conveyer consists of a conveyor frame, a chain inclined rail, a conveyor driving device, a conveyor tensioning and rotating device, and an annular roller chain; the slurry spraying mechanism consists of a stirring device, a slurry spraying stirring tank, a slurry spraying tank, a coating slurry sprayer and a slurry return groove; the water cooling mechanism consists of a water sedimentation tank, a water cooling tank connected with the water sedimentation tank through a water connecting pipe, a cold water sprayer and a water return groove; and the shocking device consists of a shocking bracket, a shocking driving device, an eccentric block, a fixed pin roll, a connecting rod, a reciprocating rod, a guide sleeve, a spring and a contact. The iron alloy grain casting machine completes a series of work procedures such as pouring, cooling, demolding and collecting iron alloy grains at one time and reduces labor intensity and production cost.

The invention provides a dyeing process of mulberry silk fabrics. The dyeing process comprises the steps of: pretreatment, presetting, low-temperature freezing treatment, dyeing, soaping, color fixing, after finishing, drying, setting, calendering and winding. The dyeing process provided by the invention has the advantages that the step of low-temperature freezing treatment is added, so that the modifying treatment is carried out on the properties of the mulberry silk fabrics fundamentally; a salt-free dyeing additive is added in the dyeing procedure, so that the use of inorganic salts is reduced on the premise of guaranteeing the dyeing effect; the soaping and color-fixing processes are added, so that the dyeing firmness is good; in the color fixing process, environment-friendly formaldehyde-free TCD-R is adopted, and the fiber is dried in a step-by-step manner after color fixation, so that the firmness of the fiber is greatly improved; the after-finishing process is added, so that the color firmness and softness of the fabrics are improved and increased, the roughness of the fabrics is reduced, and further the fabrics are fluffy and elastic.

The invention relates to a casting die avoiding press shell interior shrinkage porosity, and belongs to the technical field of metal casting. The casting die comprises a volute-shaped press shell body die provided with a needed interior cavity. A vertical pouring gate with the upper end opened is arranged on the outer side of the press shell body die. The vertical pouring gate communicates with two inner pouring gates facing the press shell body die through a horizontal pouring gate extending towards the two sides. The inner pouring gates pass through an inlet end dead head with an upward opening and then communicate with radial inlets of the press shell body die. Two shape following chillers located on the upper surface of the press shell body die disc are arranged between the two radial inlets. The side, away from the vertical pouring gate, of the press shell body die is provided with a heating dead head extending upwards through a shrunk neck, and an arc chiller is arranged between the shrunk neck of the heating dead head and the upper surface of the press shell body die disc. By means of the casting die, maximum-degree feeding can be conducted on the thick and large part in a casting through the dead head, the situation that due to the too large size, a dead head neck is solidified in advance, and the feeding effect of the heating dead head is influenced is avoided, and the situation that shrinkage porosity happens to the wall of a press shell pipe, and air leakage is caused to the casting can be prevented.

The invention discloses a production process of full-cotton oxford yarn dyed fabrics. The production process comprises the steps of bleaching, dyeing, warping, sizing, weaving, gray fabric maintaining, singeing, desizing, mercerizing, zero-shrinkage preshrinking and rolling, brushing, sanding, shaping and preshrinking, wherein in the brushing process, the brushing is carried out twice in forward and backward directions, the speed of a lathe is 10-15 meters per minute, the relative rotation speed of a large cylinder is 50-75 rounds per minute, the relative clockwise rotation speed of needles consistent with the rotary direction of fabric rollers is 30-35 rounds per minute, and the relative anticlockwise rotation speed of needles opposite to the rotary direction of the fabric rollers is 40-45 rounds per minute; and in the grinding process, a carbon brush is adopted for grinding, the speed of the lathe is 15-20 meters per minute, and the tension is 25kg-35kg. By virtue of the production process, the softness and fullness degrees of the yarn dyed fabrics can be improved, the wool of the yarn dyed fabrics is short and dense, and the hand feel of the yarn dyed fabrics is improved.

The invention provides a direct dyeing process for a chemical fiber. The direct dyeing process for the chemical fiber comprises the steps of pretreatment, pre-shaping, modification treatment, dyeing, soaping, color fixing, after-treatment, drying, sizing, calendaring and rolling. According to the direct dyeing process for the chemical fiber, the modification treatment is added, so that performances of a chemical fabric are subjected to the modification treatment basically, the dyeing degree of the fabric is increased, and the difficulty of a subsequent dyeing step is reduced; during dyeing, the mass utilization of inorganic salt is avoided; furthermore, substitute alkali is used for replacing a conventional sodium carbonate substance, so that the consumption is reduced, a color fixation effect is also improved, and the washing fastness of the chemical fiber is further improved; soaping and color fixing processes are added, so that the dyeing fastness is good; environment-protection formaldehyde-free TCD-R is utilized in the color fixing process, and color-fixed fibers are gradually dried, so that the firmness of the fibers is greatly improved; the post-treatment process is added, so that the color fastness and the flexibility of the fabric are improved, the roughness of the fabric is reduced, and the fabric is fluffy and has high resilience.

The invention discloses a dyeing and finishing technology for a silk and cotton blended jacquard fabric. The technology comprises the following steps: singeing, piling, bleaching, drying, pre-stentering, dyeing, softening, setting and preshrinking. By pre-stentering the fabric after the drying and before the dyeing, wrinkles formed during pretreatment can be eliminated, the dyeing defects of streaks, unevenness and the like during the dyeing can be reduced; the fabric is preshrunk, on one hand, the shrinkage rate can be guaranteed within a specified range, on the other hand, the handfeeling and the gloss of the fabric can be improved.

The invention discloses a low-voltage electrostriction actuator based on PVC gel driving, which is formed by repeatedly folding or alternately weaving a conductive mesh-shaped anode and a PVC gel-cathode integrated film, wherein the outer layer is wrapped with a flexible protective shell; and the PVC gel-cathode integrated film is formed by wrapping an ultrathin conductive cathode with a PVC gel film. The electric connecting wires are arranged at the two ends of the driver, under the effect of the voltage lower than 200 V, the driver can generate large contraction deformation, and an importantpopularization value is achieved in the fields of flexible robots, power assisting instruments and the like.