31results about How to "Meet spinning requirements" patented technology

The invention discloses a fiber pretreatment device and method. The fiber pretreatment device comprises a cotton feeder, a wool mixer, a fan, a cotton conveying channel, an automatic humidification device and a wool bin which are connected in sequence by pipes; the automatic humidification device is connected with the cotton conveying channel; the fiber pretreatment device further comprises a reflow fan; the reflow fan is connected with the wool mixer and the wool bin through pipes; the wool bin is provided with an air blowing device; and the air blowing device is a ventilating pipe which is connected with an air blower. The method for humidifying manually for fiber pretreatment for a long time is changed, the working labor intensity is reduced, the defect of incontinuous production caused by manual humidification is overcome, and the reflow step, namely the secondary humidification step is adopted so that the fiber pretreatment can further meet the yarn spinning requirement and the fiber spinnability is improved.

The invention relates to an industrial purification method for fiber-grade methanol proteins and effectively solves the problems of difficult wall breaking of pichia pastoris cells, low breaking rate,easy deactivation and difficult methanol protein purification. The industrial purification method comprises the following steps: performing centrifugal separation on fermentation liquid twice to obtain a heavy phase B; preparing a lysate, adding the lysate in the heavy phase B and adding desalting water to obtain a heavy phase C with a mass concentration of 30 percent; performing high-pressure homogenization to obtain a cell breaking liquid; cooling, regulating a pH value, centrifuging with a centrifugal machine and collecting liquid supernatant to obtain a protein solution; regulating a pH value, performing static precipitation, separating a precipitate with the centrifugal machine and collecting to obtain heavy-phase proteins D; adding desalting water, mixing and centrifuging to obtaineluted re-phase proteins E; regulating pH to obtain a protein alkali solution; drying to obtain the fiber-grade methanol proteins. The industrial purification method provided by the invention has thebenefits that the efficient wall breaking of the pichia pastoris cells as well as the isolation and the purification of the proteins with specific molecular weights are realized, the yield is high, the protein molecular weight distribution is concentrated, the content of crude proteins is above 90 percent, and the requirements for wet spinning of protein fibers can be met.

The invention discloses a water treatment sponge material. Modified polyester undergoes melt-blown spinning and is braided to obtain water treatment sponge, and a modifier is added to regulate the structure of a fiber and improve the strength of the fiber; a cross-linking layer is formed on the surface of the fiber through rapid cross-linking, and nano-particles are introduced to further guarantee the strength of the fiber and improve the adsorption capacity of the water treatment sponge. The above water treatment fiber disclosed in the invention has a large content of oil suction groups, the application range of the water treatment sponge made by using the water treatment fiber can be greatly widened, and the water treatment sponge plays a positive role in the field of organic liquid pollution treatment; and a preparation method of the water treatment sponge material has the advantages of simplicity, easy operation and short preparation time, and the water treatment sponge prepared through the method has the characteristics of excellent adsorption performance, good strength, small density and repeated use, and is suitable for industrial production.

The invention provides a method for preparing stock solution dyed elastomeric polyester fiber. The method includes: preparing a colorant and an elastomer toughening agent into PET (polyester) masterbatch; then adding the PET masterbatch into a PET spinning stock solution for stock solution dyeing to obtain the dyed elastomeric polyester fiber directly by spinning. In the method, the colorant and the elastomer toughening agent are taken as the masterbatch and added to the spinning stock solution of the polyester fiber, and technical problems existing in dyeing properties and resilience broughtby the fact that traditional fiber needs to be dyed with dyes after forming are solved; the method is simple in operation and favorable for environmental friendliness, and the obtained polyester fiberis high in color fastness, bright in color, soft in handfeel and good in resilience.

The invention discloses a production method of a yakwool and spun silk blended yarn, and belongs to the technical field of spinning. The yakwool and spun silk blended yarn is prepared through the process of wool blending, wool carding, spinning, spooling, doubling and two-for-one twisting. Compared with the prior art, the yakwool and spun silk blended yarn is added in the method, through the highstrength advantage of spun silk, in cooperation of a small ratio of spun silk, the spinning requirements can be met, the style of yakwool is kept to the maximum extent, and meanwhile the specific color, luster and hand feel of spun silk can be embodied, the application range of yakwool fibers is expanded, and the current situation that a yakwool product is monotonous is broken.

The invention relates to a stock solution for spinning phenolic fibers (PFs). The stock solution comprises the following raw materials: phenol, a 30 to 40 weight percent formaldehyde solution, a 6 to 18 weight percent polyvinyl alcohol (PVA) solution and a catalyst in a mass ratio of 100:(90-200):(40-250):(8-40). The stock solution has the advantages that: spinnability is high, the spinnable viscosity interval is wide, and the intrinsic properties of the PFs are not influenced by an additive.