42results about How to "Increase sizing rate" patented technology

The invention discloses a manufacturing process of a polyester cotton yarn-dyed fabric. The manufacturing process comprises the following technological steps: selecting a polyester cotton blended yarn; sequentially performing scouring, blanching, dyeing, soap-boiling, water washing and drying, wherein beam dyeing is adopted, and in the dyeing process, the winding density of a warp of a warping machine is 0.46-0.48 g/cm<3>; before dyeing, adding 0.2-0.4 g/L sodium sulfate into water required by dyeing, performing stirring for 8-10 min; adding sodium carbonate first at the water temperature of 35-40 DEG C; after 12-15 min, adding sodium sulfate for 12-15 min; and maintaining for 42-46 min when the temperature rises to 62 DEG C. According to the manufacturing process, the dyeing effect is improved, more uniform dyeing is achieved, the dyeing freshness is guaranteed, the static property of a spun polyester thread is reduced by an anti-static agent, the static ratio of the polyester cottonyarn-dyed fabric which is woven is favorably reduced on the whole, in addition, triple-jump, yarn breakage and yarn sinking are reduced, and the sizing percentage is increased.

The invention discloses a regenerated cotton fiber and a yarn spinning method thereof and a textile weaving method. The regenerated cotton fiber is prepared by using a following preparation method including the steps that large-grained solid impurities in textile wastes are removed first, according to fiber compositions and color features, classification is conducted, and classified textile wastesare obtained; the classified textile wastes are cut into classified textile waste fragments with the length of 2-3 centimeters; a first nourishing solution and a second nourishing solution are addedto the classified textile waste fragments by using a fiber nourishing device in sequence, and a nourished textile fabric is obtained; the nourished textile fabric is subjected to multi-stage opening,the fiber with the length of 14-20 millimeters is collected, and the regenerated cotton fiber is obtained. The length of the regenerated cotton fiber is ensured, the spinnability of the regenerated cotton fiber is improved, and the regenerated cotton fiber is suitable for a ring spinning method.

The invention discloses a compound additive for textile sizing, and a preparation method thereof. The preparation method comprises the following steps: by taking glycol salicylate, fatty alcohol-polyoxyethylene ether, polyvinyl pyrrolidone and sodium dioctylsulfosuccinate as main components, adding sodium sulfite, dimethyl azobisisobutyrate, coconut oil amide propyl betaine, aluminum hydroxide, organic acid, a cross-linking agent and deionized water, and performing ball milling, stirring, emulsification, pH value adjustment, heating, holding, ultrasonic vibration, high-speed shearing and the like, so as to obtain the compound additive. After the prepared compound additive is used, textiles have the effect of remarkably increasing the sizing rate, the tensile strength of the textiles can be enhanced, the adhesion of dust can be decreased to meet the industrial demands, and thus the compound additive has better application prospects.

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 a prepolymer, which comprises the following components: (A) polyether glycol; (B) aromatic diisocyanate; wherein the weight ratio of the component (A) to the component (B) is 5.65:1 to 9.43:1; polyurethane emulsion for carbon fibers comprises the following components in parts by weight: 66.5 to 104.3 parts of prepolymer, 45 to 55 parts of organic solvent, 66 to 184 parts of deionized water, and 2 to 14 parts of processing auxiliary agent. The preparation method comprises the following steps: adding polyether glycol into a reactor, carrying out a water removing treatment at the temperature of 120 DEG C for 1 hour, cooling to 50 DEG C, stirring and heating to 70 DEG C in an oil-bath; then adding aromatic diisocyanate into the reactor, carrying out a reflux reaction for 2 hours under the protection of nitrogen gas, adding an organic solvent into the reactor, and cooling to the 40 DEG C so as to obtain the prepolymer; adding a processing auxiliary agent, dissolving the agent with an organic solvent, then adding the solution into the prepolymer, carrying out the reactions for 1 hour, then adding water to carry out emulsion reactions for 30 minutes, and finally carrying out reduced pressure distillation to remove the organic solvent so as to obtain the target product. The obtained polyurethane emulsion can reduce the surface tension of carbon fibers, improves the wettability and bundling of carbon fibers, reduces the broken filament rate, and can be applied to the fields of automobile, medicine, food processing, and chemical engineering.

The invention relates to the technical field of bandages, and discloses intelligent manufacturing equipment for increasing a sizing rate for bandage production. In the equipment, stabilizing pieces are fixedly connected to the left side and the right side of a main body. According to the intelligent manufacturing equipment for improving the sizing rate for bandage production, a solution is fed through a feeding port, original sizing in the feeding port moves to the upper end through a conveying part, the feeding port and the conveying part are not equal in height, the conveying part is lower than the feeding port, a supporting rod at the top end of the conveying part moves upwards under the gravity effect, a sliding strip synchronously operates on an internal center seat, a push rod is stressed to gradually move towards the middle, and a round rod accessory accelerates to push a bandage strip, so that the rotating speed of the center seat is increased, meanwhile, the sizing speed can be controlled by controlling the push rod, thus the equipment has the function of controlling the sizing speed, the self-adhesion is improved, the utilization rate is relatively high, and the production of the bandage is promoted.