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96results about How to "High fastness" patented technology

Method for preparing iridescent cuprous oxide nanoparticle photonic crystal

The invention discloses a method for preparing an iridescent cuprous oxide nanoparticle photonic crystal, which is characterized in that monodisperse spherical particles are obtained through a method for controlling the crystal form of cuprous oxide nanoparticles, so that the monodisperse spherical particles can be self-assembled into a three-dimensional ordered photonic crystal structure, thereby generating gorgeous iridescent color. The invention relates to a method for preparing iridescent cuprous oxide nanoparticle photonic crystals, which adopts monodisperse spherical cuprous oxide nanoparticles with a polycrystalline structure as a structural unit, and is synthesized by the following steps: 1) dissolving high-molecular-weight polyvinylpyrrolidone, trisodium citrate and soluble bivalent copper salt in a mixed solvent of polyethylene glycol and water; stirring until the materials are completely dissolved; (2) dropwise adding a strong alkali solution into the solution prepared in the step (1), vigorously stirring, quickly adding a reducing agent, and stopping after the reaction is completed under stirring; and 3) separating a reaction product, washing and drying in vacuum.
Owner:ZHEJIANG SCI-TECH UNIV

Method for washing dyed fabric based on micro-nano bubble technology

The invention belongs to the technical field of textile dyeing and finishing, and relates to a method for washing dyed fabric based on a micro-nano bubble technology, which comprises the following steps of: continuously injecting water containing micro-nano bubbles at the temperature of 10-80 DEG C into a washing tank or a dyeing vat in which the dyed fabric is placed by utilizing a micro-nano bubble generating device until the fabric is completely immersed in the water; the micro-nano bubbles are continuously generated to wash the dyed fabric for 30 seconds to 10 minutes, and the process of washing the fabric by using the water containing the micro-nano bubbles can be repeated according to the color fastness requirement of the washed and dyed fabric; the fabric contains any one fiber component of cellulosic fiber, wool and silk; the micro-nano bubbles are air bubbles, oxygen bubbles, hydrogen bubbles, nitrogen bubbles, helium bubbles or argon bubbles; the minimum diameter of the micro-nano bubbles is smaller than or equal to the pore diameter of micropores in fibers after the fabric is swelled. In the washing process, only micro-nano bubble water is used, a soaping agent is not used, the washing time is shortened to 30s-10min, and the color fastness of the washed fabric is improved.
Owner:DONGHUA UNIV +1

Knitted fabric and dyeing and finishing method thereof

PendingCN119392419AGood anti-pillingEasy to grindWeft knittingWarp knittingPolyesterYarn
The invention relates to the technical field of textile printing and dyeing, and discloses a knitted fabric and a dyeing and finishing processing method thereof. The blended yarn is formed by blending polyester fibers and viscose fibers. The mass ratio of the polyester fibers to the viscose fibers is 1: (0.1-10). The knitted fabric is formed by weaving the blended yarn. The mass percent of the blended yarns is greater than or equal to 50%. The blended yarn provided by the invention comprises the polyester fibers and the viscose fibers, and the content ratio of the polyester fibers and the viscose fibers is wide in change range; the blended yarn can be independently used as a raw material or woven into knitted fabric together with spandex / chemical fiber filaments and other raw materials, and the defects that an existing knitted fabric is single in component, the content of the raw materials is strictly limited and the like are overcome. According to the dyeing and finishing processing method of the fabric, the knitted fabric with different components can be treated, the fabric is bright in color, excellent in washing fastness, rubbing fastness and pilling resistance and soft in hand feeling, and the application requirements of the clothing industry can be better met.
Owner:GUANGZHOU JINGYILVFANG TECHNOLOGY CO LTD

Cationic modifier as well as preparation method and application process thereof

The invention discloses a cationic modifier and a preparation method and an application process thereof, and the modifier has the following structural formula: # imgabs0 #. The cationic modifier has the beneficial effects that the dye-uptake rate of cellulose fibers modified by the cationic modifier is improved by about 30% compared with that of unmodified cellulose fibers, and residual water of dye liquor is almost colorless; anhydrous sodium sulphate for accelerating dyeing and sodium carbonate for fixing color are not needed in the dyeing process, so that a new salt-free dyeing process is really realized, and the residual water of the dyeing liquid can be recycled; compared with a conventional dyeing process, the novel salt-free dyeing process has the advantages that carbon emission is reduced by about 35% and sewage emission is reduced by 20 tons per ten thousand meters when the same dyeing depth is achieved through comparison data of a dyeing factory.
Owner:DUPLUS CHEM OF ZHANGJIAGANG CITY

Polyurethane adhesive as well as preparation method and application thereof

The invention relates to a polyurethane adhesive as well as a preparation method and application thereof. The adhesive is prepared from the following raw materials in percentage by weight: 35 to 65 weight percent of composite polyether polyol, 14 to 25 weight percent of polyisocyanate, 1 to 5 weight percent of hydrophilic chain extender, 1 to 5 weight percent of micromolecule chain extender, 0.05 to 3 weight percent of catalyst, 0.5 to 4 weight percent of neutralizer, 1 to 7 weight percent of end-capping reagent, 1 to 8 weight percent of silane coupling agent, 2 to 12 weight percent of mesoporous microsphere, 2 to 5 weight percent of isopropanol, 2 to 5 weight percent of butyl acetate, 0.2 to 4 weight percent of defoaming agent and the balance of water, wherein the composite polyether polyol is a composition of Mannich polyether polyol and flexible foam polyether polyol in a mass ratio of 1: (0.5-1); the adhesive disclosed by the invention can replace hot melt adhesive powder in garment pyrography, can improve the softness, air permeability, friction resistance and soaping-resistant color fastness of fabric pyrography printing, and can obviously reduce the film-forming drying and curing temperature of the adhesive at the same time.
Owner:GUANGZHOU LINO NEW MATERIAL TECH CO LTD

Reactive dye composition and dye product

A reactive dye composition, characterized in that: the reactive dye composition comprises component A, component B and component C, wherein the component A is selected from at least one of the dye compounds shown in formula (I) and (II) and their alkali metal salts, the component B is selected from at least one of the dye compounds shown in formula (III) and their alkali metal salts, and the component C is selected from at least one of the dye compounds shown in formula (IV) and their alkali metal salts; in the reactive dye composition, the mass percentage of component A is 10-80%, the mass percentage of component B is 1-30%, and the mass percentage of component C is 10-85%. The reactive dye composition and dye product provided by the present invention are mainly coffee color or jujube red, and have the characteristics of good lifting power, dyeing rate, color fixation rate, and excellent friction resistance and water washing fastness.
Owner:ZHEJIANG KEYONG CHEM CO LTD +1

PVC heat stabilizer and application thereof

The invention relates to the technical field of heat stabilizers, in particular to the field of IPC C08K5, and more particularly relates to a PVC heat stabilizer and application thereof. The invention relates to a high-temperature-resistant flame retardant, which is prepared from the following components in percentage by weight: 5 to 20 percent of organic acid zinc salt, 2 to 15 percent of beta-diketone, 1 to 5 percent of polyhydric alcohol, 0.5 to 2 percent of nucleating agent, 1 to 10 percent of fatty acid lubricant and the balance of ternary hydrotalcite. When the modified PVC crystal plate is applied to the PVC crystal plate, the initial whiteness is considered, the long-term heat resistance and color fastness are prolonged, and meanwhile, the lasting heat resistance can be increased.
Owner:CHANGZHOU LANG INNOVATION ENERGY MATERIALS CO LTD

Production process of cyclically regenerated polylactic acid and low-temperature spandex fabric

The invention relates to the technical field of fabric recovery, in particular to a production process of cyclically regenerated polylactic acid and low-temperature spandex fabric. The production process provided by the invention overcomes the problems of high stress of polylactic acid and low-temperature spandex fabrics at low temperature and poor dyeing and fixation effects. Four different types of fabrics including polylactic acid fibers, cotton fibers, polyester fibers and spandex are subjected to recovery treatment and physical treatment and then treated with an organic solvent and a phosphoric acid solution, and the raw materials are treated with a prepared PLA decomposition catalyst and a lactide ring-opening catalyst. Vitamin B12, a chain extender and isocyanate are supplemented in the technological process, and the dyeing process of low-temperature treatment is adopted, so that the stress of the regenerated polylactic acid and low-temperature spandex fabric is reduced, the dyeing and color fixing effects are good, and the closed loop of recycling and reusing of the polylactic acid and spandex waste fabric is realized.
Owner:SHENZHEN NAERSI FASHION CO LTD

A weather-resistant polyoxymethylene automotive sun visor material and its preparation method

This invention relates to a weather-resistant polyoxymethylene (POM) automotive sun visor material and its preparation method, belonging to the field of polymer materials technology. The weather-resistant POM automotive sun visor material prepared by this invention possesses excellent mechanical properties, UV aging resistance, and color fastness. This invention synthesizes an aging-resistant additive containing phosphate ester groups, triazine rings, morpholine rings, and tert-butyl groups. This additive can simultaneously exert peroxide decomposition, UV absorption, free radical scavenging, and steric stabilization effects, achieving efficient and in-situ synergistic effects at the molecular scale, solving the problems of component separation and asynchronous action in traditional systems. Furthermore, the aging-resistant additive synthesized in this invention, due to its polarity matching, can form uniform and strong intermolecular interactions (such as hydrogen bonds) with the POM matrix, serving as a dynamically reversible physical crosslinking point. This effectively improves the material's rigidity and strength while enhancing impact toughness through an energy dissipation mechanism.
Owner:SUZHOU PLENTY PLASTICS IND LTD

Dyeing guide device for chemical fiber fabric production

The invention relates to the field of chemical fiber fabric dyeing, and discloses a dyeing guide device for chemical fiber fabric production, which comprises a separation block, the separation block is fixed in the middle of the interior of a dyeing bin, the interior of the dyeing bin is divided into two areas by the separation block, and the area positioned on the bottom surface of the separation block is a dip dyeing area; the area located on the top face of the separation block is a spray dyeing area, a limiting frame is movably arranged in the separation block, a transmission roller is rotationally arranged between the two ends of the limiting frame, and a cloth lifting roller is rotationally arranged at the highest point in the dyeing bin. According to the device, when the separation block can push the transmission roller to move towards the tail of the interior of the dyeing bin in the moving process, the gray fabric between the cloth lifting roller and the transmission roller is subjected to two strands of traction force at the moment, so that the gray fabric between the cloth lifting roller and the transmission roller is in a flat state, the subsequent spray dyeing effect is improved, and the spray dyeing efficiency is improved.
Owner:XUZHOU RONGSHENG TEXTILE FINISHING CO LTD

High-efficiency environment-friendly ultra-high molecular weight polyethylene fiber dyeing process

The invention discloses an efficient and environment-friendly dyeing process for ultra-high molecular weight polyethylene fibers, and relates to the technical field of textile material dyeing, pretreatment operation is needed when the polyethylene fibers are dyed, and the pretreatment operation comprises cleaning of the ultra-high molecular weight polyethylene fibers and treatment of a dyeing agent. The main components for preparing the dyeing agent comprise a disperse dye, an initiator, a reactive diluent, a buffer agent, an antistatic agent and a dye assistant.The method has the advantages that by conducting plasma treatment on the polyethylene fibers, the dyeing performance of the polyethylene fibers can be remarkably improved, the dye can permeate and adhere more easily, and the dyeing effect is better; according to the present invention, the dyeing agent is added to the polyethylene fiber, such that the brighter and lasting color can be obtained, the overall performance of the polyethylene fiber can be enhanced, the dyeing step of the polyethylene fiber material can be environmentally friendly and safe by using the Di-VS as the disperse dye for preparing the dyeing agent, and the Di-VS has characteristics of good dyeing property and good color fastness.
Owner:SHANDONG TIANLUAN NEW MATERIAL TECHNOLOGY CO LTD

Anti-fading dental scarf

ActiveCN222623134UImprove waterproof performanceImprove anti-fade effectDentistryDentistryOrthodontics
The utility model discloses an anti-fading dental scarf. The anti-fading dental scarf comprises a dental scarf body, the dental scarf is characterized in that a color fixing agent layer for preventing the dental scarf body from fading is coated on the dental scarf body in a rolling manner; the color fixing agent layer is coated with a PE (polyethylene) film with a waterproof effect; a plurality of magnetic sheets convenient for fixing the dental scarf body by magnetism are mounted on the dental scarf body. According to the dental scarf, the color fixing agent layer is coated on the dental scarf body in a rolling mode, the color moisture-proof treatment and fastness of dye on the dental scarf body are improved, meanwhile, the color fixing agent layer is wrapped with the PE thin film, the waterproof effect of the dental scarf body is improved, and therefore the anti-fading effect of the dental scarf body is further improved; the dental scarf body is directly fixed on the clothes through magnetism by utilizing the magnetic sheets, so that the dental scarf body can be conveniently fixed.
Owner:FUYANG MINGYANG IND

Dyeing method of meta-aramid yarn

InactiveCN119553519ARealize room temperature dyeingcause extra burdenDyeing processDisperse dyeYarn
The invention belongs to the technical field of textile printing and dyeing, and particularly relates to a dyeing method of meta-aramid yarn. The dyeing method of the meta-aramid yarn comprises the following steps: dissolving an S-type or SE-type disperse dye and a dispersing agent in water to prepare a dye solution; in the meta-aramid yarn winding process, a single yarn is completely immersed in the dye liquor for contact, saturated adsorption is performed, and the meta-aramid yarn is wound into a loose cone yarn; carrying out high-temperature steaming fixation; the color-fixed cone yarn is put into a cone yarn dyeing machine to be subjected to reduction cleaning and normal-temperature water washing, the water-washed cone yarn is dehydrated and dried, dyed meta-aramid yarn is obtained, the dark color variety is subjected to redyeing through the dried yarn, and then the dyed meta-aramid yarn is obtained through steaming color fixing and aftertreatment. A disperse dye adopted for redyeing is an E-type disperse dye. The dyeing method of the meta-aramid yarn provided by the invention is low in cost, simple to operate, environment-friendly and high in production efficiency under the condition of normal temperature.
Owner:LUTAI TEXTILE

Synthesis method of water-based polyurethane color fixing agent for nylon dyed by acid dye

PendingCN121949742AIncrease dye uptake percentageHigh K/S valueDyeing processColour fastnessPolymer science
The invention discloses a synthetic method of a water-based polyurethane color fixing agent for nylon dyed by an acid dye, aiming at the property of nylon dyed by the acid dye, poly (butylene adipate-1000) and polyethylene glycol-1000 are mixed to prepare cationic water-based polyurethane, so that the dyeing percentage is increased, and the treated nylon has higher K / S value and color fastness; meanwhile, N, N-dimethyl-N, N-bis (2-ethoxyl) ammonium chloride is selected as a cationic chain extender of the waterborne polyurethane, compared with a traditional cationic chain extender, a neutralization procedure necessary for a traditional route is omitted, the risks of neutralization amount deviation, local acid excess and the like are avoided, and the production process is simplified.
Owner:NANTONG UNIV

Tight composite type high-barrier linear easy-to-tear antibacterial nylon film and composite film thereof

The utility model relates to the field of flexible packaging materials, in particular to a compact composite type high-barrier linear easy-to-tear antibacterial nylon film and a composite film thereof. The tight composite type high-barrier linear easy-to-tear antibacterial nylon sequentially comprises an anti-sticking antibacterial layer, a first linear easy-to-tear nylon layer, a barrier layer, a second linear easy-to-tear nylon layer and a tight composite layer from outside to inside, the composite film sequentially comprises a tight composite type high-barrier linear easy-to-tear antibacterial nylon film layer, an adhesive layer and a heat sealing layer from outside to inside. According to the compact composite type high-barrier linear easy-to-tear antibacterial nylon film, a five-layer composite structure is adopted, various materials are laminated and combined, the advantages of the various materials can be integrated, and the performances are complementary; the composite film comprising the compact composite type high-barrier linear easy-to-tear antibacterial nylon film has good mechanical property, barrier property, antibacterial property, linear easy-to-tear property and excellent composite peel strength, and has a very wide application prospect.
Owner:XIAMEN CHANGSU IND CO LTD

Energy-saving dip dyeing method for knitted fabric

The invention relates to the technical field of textile dyeing, and particularly discloses an energy-saving dip dyeing method for knitted fabric. An energy-saving dip dyeing method for a knitted fabric comprises the following steps: pretreatment: immersing the knitted fabric in a pretreatment solution, soaking at 30-50 DEG C, and then washing to obtain a pretreated knitted fabric; wherein the raw materials of the pretreatment liquid comprise the following components in parts by weight: 90-110 parts of deionized water, 1-5 parts of a surfactant, 0.5-2 parts of an electrolyte, 0.5-3 parts of a solubilizer and 0.5-2 parts of a softening agent; dyeing: putting the pretreated knitted fabric into a dye solution, soaking at 20-30 DEG C, taking out, washing with water, and carrying out heat setting to obtain a dyed knitted fabric; wherein dye in the dye liquid is prepared from the following components in parts by weight: 20 to 30 parts of reactive dye, 10 to 20 parts of penetrant, 5 to 15 parts of regulator, 10 to 20 parts of reserve salt and 0.1 to 1 part of buffering agent.
Owner:HANGZHOU JIJIN PRINTING & DYEING CO LTD

Polymer printing material and synthesis method thereof

The invention discloses a polymer printing material and a synthesis method thereof. The polymer printing material comprises the following raw materials in percentage: 25% of polyether polyol, 23% of polymerase polyol, 28% of diphenylmethane diisocyanate, 5% of an organic tin catalyst, 1% of a dihydric alcohol chain extender and 15% of a solvent. The polymer printing material prepared by the invention is a polyurethane material synthesized by combining the polyether polyol, the polyester polyol, the diphenylmethane diisocyanate, the organic tin catalyst, the dihydric alcohol chain extender and the solvent, and has very high flexibility, tensile strength and tear strength; the completeness and durability of an image can be kept after printing, so that the friction resistance, the washing resistance and the light fastness after printing are improved, and an effective application effect is achieved.
Owner:XIAMEN PINDA IND TRADING CO LTD

Reactive dyeing method for spandex textiles

ActiveCN116136068BIncrease the adsorption rateHigh fastnessTextile/flexible product manufactureDyeing process
The invention provides a method for dyeing spandex textiles with reactive dyes, wherein a solvent system suitable for dyeing spandex textiles is used to uniformly disperse reactive dyes to prepare dye liquor, and then the spandex textiles treated with pre-stretching or tension relaxation are dyed. The solvent system includes a binary solvent system of a water-soluble monohydric alcohol organic solvent and water; a water-insoluble halogenated hydrocarbon organic solvent may also be added to form a ternary solvent system. The solvent system of the dye liquor of the invention can make the reactive dye molecules in the dye liquor significantly aggregate, making it easier to enter the interior of the spandex; and the solvent system has excellent wettability, which is more conducive to the combination of reactive dyes and spandex. The method has a short process time and a low dyeing temperature, and will not damage the internal structure of the spandex. The dyed spandex product has good color fastness and color uniformity; and no auxiliary agent needs to be added during the dyeing process, which reduces energy consumption and wastewater discharge, and has the advantages of being green and environmentally friendly.
Owner:WUHAN TEXTILE UNIV

Degreasing agent and fabric shaping process adopting degreasing agent

The invention relates to the technical field of dyeing and finishing, in particular to a degreasing agent and a fabric shaping process adopting the degreasing agent. The degreasing agent is prepared from a fluorocarbon surfactant, fatty alcohol-polyoxyethylene ether, modified carbon nanotubes, diethylene glycol monobutyl ether and water. The non-ionic fluorocarbon surfactant and the fatty alcohol-polyoxyethylene ether are used in a compatible mode, an oil agent wrapping the fabric in the fabric is further removed, the modified carbon nano tubes enter the fabric to adsorb the oil agent, and the influence of the residual oil agent on the fixation rate is reduced; furthermore, the active groups on the surfaces of the modified carbon nanotubes and the porous structure of the carbon nanotubes have a good fixation effect on the dye, so that the fabric treated by the degreasing agent has excellent color fastness and fixation rate.
Owner:HANGZHOU LINBO SAND WASHING CO LTD

Super wear-resistant and scratch-resistant UV coating and preparation method thereof

The invention provides a super wear-resistant and scratch-resistant UV coating. The super wear-resistant and scratch-resistant UV coating is prepared from the following components in parts by weight: 100-150 parts of modified polyurethane acrylic resin, 20-40 parts of a reactive diluent, 4-6 parts of a photoinitiator, 3-10 parts of pigment-loaded foamed aluminum oxide particles, 3-10 parts of a BYK331 leveling agent and 0.5-2 parts of an auxiliary agent, the particle size of the foamed aluminum oxide particles loaded with the pigment is 10-100 microns, and the porosity of the foamed aluminum oxide is 80-97%. According to the super wear-resistant and scratch-resistant UV coating and the preparation method thereof provided by the invention, a micro-nano structure is formed on the surface of a coating through a micro-structure of foamed aluminum oxide particles, a nano-structure of pigment and micro (nano)-meter holes of the foamed aluminum oxide particles, so that the tribological performance of the coating is improved, friction and wear are reduced, and the anti-friction and anti-drag performance of the coating is improved; foamed aluminum oxide is of a porous structure, has rich pore structures, can adsorb a large amount of pigment, enables the pigment to be uniformly dispersed, and avoids agglomeration caused by direct addition of the foamed aluminum oxide into the coating and nonuniform color of the coating.
Owner:DONGZHOU CHEM IND (KUNSHAN) CO LTD

Two-in-one vest with cups convenient to adjust

ActiveCN224140209UNot easy to twistEliminate foreign body sensationGarmentsBrassieresHuman bodyLaundry
The utility model discloses a two-in-one vest with cups convenient to adjust, which comprises a vest, an interlayer space is arranged at the position of the vest corresponding to the chest of a human body, a left cup mat and a right cup mat are arranged in the interlayer space, and the lower parts of the cup mats are connected with the vest; the two sides of the interlayer space are provided with an inner layer fabric and an outer layer fabric respectively, an opening is formed in the inner layer fabric, the interlayer space is communicated with the outside through the opening, and the position of the opening corresponds to the position between the two cup mats. According to the scheme, the cup mat is of a semi-fixed structure, it can be guaranteed that the cup mat is relatively stable during daily wearing and not prone to being twisted during clothes washing, fingers can stretch into the opening to unfold the cup mat or adjust the position and angle of the cup mat, the cup mat can better adapt to various breast shapes, different wearing requirements and body states, and personalized wearing experience is achieved.
Owner:SONGSHAN COTTON STORE (BEIJING) TECH CO LTD

Crocodile leather finishing method

The invention relates to the technical field of tanning, in particular to a crocodile leather finishing method which comprises the following steps: step 1, cleaning crocodile leather to be treated; 2, after the crocodile leather is cleaned, the surface of the crocodile leather is coated with a coating; 3, after the coating is sprayed, glazing and polishing are conducted; and 4, finishing the coating. According to the crocodile leather finishing method, micromolecular acrylic filling resin, polyurethane resin and silanized carboxyl modified nanocellulose are compounded, so that a coating is endowed with excellent peel strength, high toughness and high wear resistance, and the acrylic resin is subjected to composite enhanced modification by screening the types and median particle sizes of the nanocellulose, so that the wear resistance of the crocodile leather is improved. The coating is endowed with excellent wear resistance, toughness and color fastness, and the wear resistance of the coating is further improved by using the reinforcing auxiliary agent silanization modified carboxyl nano cellulose and carbonized collagen fiber powder.
Owner:HAINAN CROCODILE CROCODILE IND TECH CO LTD

Spinning method for improving washability of fabric and preparation method of fabric

The invention discloses a spinning method for improving washability of a fabric and a preparation method of the fabric, and relates to the technical field of preparation of the fabric, and the spinning method comprises the following steps: pretreating a spinning fiber raw material to remove impurities in the raw material; the pretreated spinning fibers are synthesized into fiber bundles, and the fiber bundles are stretched, so that the fiber bundles are refined and reach the required linear density; in the spinning nozzle, air is utilized to enable the fiber bundles to move along the spiral channel, and the fiber bundles are twisted under the action of centrifugal force; and the fiber bundles are gradually condensed and twisted into newly formed yarns under the action of specific airflow to form yarn cores. According to the spinning method, the fibers form a multi-point crossed entangled structure in the yarns under the action of airflow, so that the friction force among the fibers is enhanced, and the strength and the elasticity of the yarns are improved; the formed yarn has an open structure and has more gaps and channels, so that a path for dye to enter the interior of the fiber is provided, and the dyeing effect of the fabric is better.
Owner:MIANYANG GANLION PRINTING & DYEING +1

Dyeing method of polylactic acid / cotton blended fabric

The invention relates to the field of dyeing and finishing of bio-based fabrics by bio-based dyes, in particular to a method for dyeing polylactic acid / cotton blended fabrics, which comprises the following steps: mixing visible blue, sodium hydrosulfite, sodium carbonate, caustic soda and water, fully reducing and diluting to obtain visible blue dyeing liquid, adjusting the pH value to be acidic, then mixing with a dispersing agent and an accelerating agent, and uniformly stirring to obtain the polylactic acid / cotton blended fabrics. Immersing the polylactic acid / cotton blended fabric for dyeing treatment, and then performing color development treatment, soaping treatment and color fixation treatment. Aiming at the problem that the polylactic acid / cotton blended fabric is difficult to dye at present, the dyeing method for the polylactic acid / cotton blended fabric is provided, the microbial-sourced ornamental blue is selected as a dye, and the dyeing method has the advantages of being green, environmentally friendly and easy to combine with the polylactic acid / cotton blended fabric; meanwhile, according to the dyeing process, on one hand, the using amount of sodium hydrosulfite is reduced, so that pollution to the environment is reduced, and on the other hand, the dyeing temperature and time are reduced, the energy consumption is reduced, and the dyeing efficiency is improved.
Owner:WEIXINGLAN (JIANGSU) NEW MATERIALS CO LTD

Preparation method of easy-to-sew woven artificial blood vessel

The invention belongs to the technical field of biomedical material manufacturing, and particularly relates to a preparation method of an easy-to-suture woven artificial blood vessel. According to the invention, untwisted polyester filament yarns are used as core yarns, and water-soluble vinylon is used as wrap yarns, so that polyester wrap yarns are prepared; and then washing with water to dissolve the water-soluble vinylon filaments, then carrying out coating and densification treatment, and then carrying out coating again to prepare the easy-to-sew woven artificial blood vessel. The easy-to-suture woven artificial blood vessel prepared by the method is soft and fluffy, the surgical suture difficulty is reduced, and endothelial cell adhesion growth is facilitated. The fastness and uniformity of the coating are improved through two times of coating and densification treatment, and the permeability of the easy-to-sew woven artificial blood vessel is effectively reduced.
Owner:SHANDONG HUANGHE DELTA INST OF TEXTILE SCI & TECH RES INST +1

Modified materials for aluminum coating of multi-layer co-extruded polyethylene aluminum substrate films

The invention discloses a modified material for an aluminum coating layer of a multi-layer co-extruded polyethylene aluminum-coated substrate film, belonging to the field of thin film polymer materials. The material is used for the aluminum coating layer of a polyethylene aluminum-coated substrate film, and the aluminum coating layer material is a modified polar polyethylene modified material. The invention uses the modified polar polyethylene modified material as the aluminum coating layer material of the multi-layer co-extruded polyethylene material, thereby effectively improving the aluminum coating adhesion of the polyethylene co-extruded substrate. The invention uses the polar material as a main component to perform polarity modification on polyethylene, thereby obtaining the modified polar polyethylene modified material, which has strong versatility. In the invention, the polar material is the main component for changing the polarity of polyethylene, and the ionic polymer is used as an auxiliary material, which has low crystallinity, good transparency, very strong anti-pollution property, can promote aluminum coating adhesion, and has good film optical properties. The leveling processing aid helps the film surface to be more microscopically flat.
Owner:CHENGDU BOSHI KERUI NEW MATERIAL CO LTD

Preparation method of azo reactive dye

The invention discloses a preparation method of an azo reactive dye, which comprises the following steps: reacting cyanuric chloride with sodium 2, 5-diaminobenzene sulfonate to obtain a first condensate, diazotizing the first condensate, performing acidic coupling on the first condensate and acetyl J acid, performing alkaline coupling on the first condensate and a diazo solution of 6-beta-ethyl sulfuryl sulfate-2-naphthylamine-1-sulfonic acid, and finally performing secondary condensation on the second condensate and nicotinic acid to obtain the azo reactive dye. Reacting to obtain azo reactive dye primary pulp, wherein the structure of the dye is shown in the specification; the prepared dye is bright in color, excellent in solubility, high in storage stability, good in lifting power and good in fixation rate and color fastness.
Owner:ZHEJIANG JINGGUANG IND

Zero-formaldehyde high-fastness transparent waterproof fabric coating material and preparation method thereof

The invention provides a zero-formaldehyde high-fastness transparent waterproof fabric coating material and a preparation method thereof, and relates to the technical field of high polymer materials. The coating material is prepared from water, a compound emulsifier, a soft monomer, a hard monomer, a hydrophilic monomer, a crosslinking monomer, a crosslinking aid, an initiator, an oxidizing agent, a reducing agent, a defoaming agent, a sterilizing agent and a PH regulator. The defects in the prior art are overcome, generation of harmful substances such as formaldehyde is avoided by selecting specific environment-friendly raw materials and an innovative technological process, high fastness and good transparency of the coating are ensured, and the comprehensive requirements of modern textiles in the aspects of environmental protection, functionality and attractiveness are met.
Owner:ZHEJIANG SATELLITE PETRO CHEM CO LTD

Garment tie-dyeing process based on natural vegetable dye

The invention discloses a garment tie-dyeing process based on natural plant dye, and relates to the technical field of garment tie-dyeing, the garment tie-dyeing process comprises dye collection and preparation and garment pretreatment, during dye collection and preparation, natural plants are selected according to dyeing requirements, and the selected natural plants are treated; the ready-to-wear garment pretreatment is used for pretreating ready-to-wear garments to be tie-dyed. According to the method, the natural plant dye is extracted through synergistic use of an enzymolysis method and ultrasonic-microwave, plant cell walls are destroyed from internal and external aspects, the extraction efficiency of the dye is greatly improved, pigment components in plants can be extracted more sufficiently, more completely and more uniformly through the synergistic extraction mode, and the extraction efficiency of the dye is improved. The problem of incomplete pigment extraction possibly caused by a single extraction method is avoided, so that the extracted dye is fuller and purer in color and more stable in hue, meanwhile, the binding force between the dye and fabric fibers is favorably improved, and the color fastness to rubbing and the color fastness to washing of the dyed fabric are further enhanced.
Owner:JIANGSU HUAYI GARMENT CO LTD

Stiff, non-deformed and non-pilling woven air layer fabric and its manufacturing method

The present invention proposes a woven air layer fabric that is stiff, non-deformed and non-pilling, comprising a fabric body, the fabric body comprising a surface layer, an inner layer and an intermediate layer, the surface layer is formed by interweaving a surface warp and a surface weft in a woven manner, the inner layer is formed by interweaving a inner warp and an inner weft in a woven manner, the intermediate layer is a binding weft extending along the weft direction, the binding weft is interwoven in the surface layer and the inner layer in a sinking and floating manner, the surface warp and the inner warp are both first core-spun yarns, the first core-spun yarns are yarns formed by 75D / 72F polyester coated with 40D spandex, the surface weft and the inner weft are both second core-spun yarns, the second core-spun yarns are yarns formed by 75D / 36F polyester coated with 40D spandex, and the binding weft is 150D / 288F polyester. On the basis of having the bulkiness, skin-friendliness, air permeability and ductility of knitted plus silk cloth and air layer, it also avoids the problems of easy hair loss, easy deformation, easy pilling and easy fading, making the woven air layer more comfortable and stylish. The invention also provides a method for making the fabric.
Owner:COLIN (FUJIAN) CLOTHING CO LTD