210results about How to "Improve curling effect" patented technology

The invention relates to a production method of double-component spinneret outside composite parallel self-crimping elastic short fiber. The production method includes: adopting high molecular polymer components A and B different in shrinkage characteristics as raw materials; subjecting AB melt to outside compositing through a double-passage spinneret to obtain an AB parallel composite filament bundle; subjecting the AB parallel composite filament bundle sequentially to air-blowing cooling, oiling, winding traction and filament carrying to obtain AB parallel composite fiber protofilament; subjecting the AB parallel composite fiber protofilament sequentially to inter-cluster balance, drafting, thermal setting, oiling, crimping, loosening and drying and cutting to obtain the double-component spinneret outside composite parallel self-crimping elastic fiber. The fiber has excellent and lasting crimping performance, is high in elasticity, elastic recovery rate and spinnability, wide in application range and suitable for nonwoven filling.

The invention provides a method for modifying cotton and long vegetable fiber or yarn by ammonia liquid, which comprises the following steps: firstly, drying pre-treatment of raw materials; secondly, ammonia leaching of the raw materials in a hermetical treatment tank; thirdly, spin-drying of the raw materials subjected to ammonia leaching when a creel is twirled; fourthly, drying of the raw materials subjected to spin-drying by ammonia flow when the creel rotates slowly; fifthly, flushing of the raw materials which are dried by the ammonia flow by airflow when the creel rotates slowly; and so on. The method keeps the inherent advantages of the cotton, the long vegetable fiber and the yarn, overcomes the defects of the cotton, the long vegetable fiber and the yarn, increases softness, crimp tendency and fluffiness of the cotton, the long vegetable fiber and the yarn, improves the dye-uptake rate, the leveling property and the showy dye level, and further solves the problems of energy conservation, efficiency improvement and environmental protection.

The invention provides a display device. The display device comprises a supporting layer, a first adhesive layer, a display panel, a fourth adhesive layer and cover plate glass. The supporting layer is designed into a sandwich structure; the supporting layer comprises at least two layers of metal sheets and a second adhesive layer clamped between the two layers of metal sheets; holes are dug in the two layers of metal sheets, and the two layers of metal sheets are filled with a third adhesive layer, so that the supporting layer has better curling performance and higher bonding strength, and the adhesive layer is effectively prevented from falling off in the bending process. The display panel can be well supported, and flexibility and rigidity are integrated.

The invention relates to a polylactic acid/polypropylene cigarette composite tow with a sheath-core structure and a preparation method thereof. The polylactic acid/polypropylene cigarette composite tow is prepared by a composite spinning technology in a melt spinning method, the section of a single prepared fiber is in a surface-core structure (the core is polypropylene, and the surface is polylactic acid), the linear density of the tow is 3.5-5.5 ktex, the monofilament linear density is 2-5 dtex, the crispation number is 18-28/25 mm, and the crispation index is about 0.55. Because the surface-core structure is adopted, the inside polypropylene is used as a skeleton, the composite tow can be crimped and processed for drying and shaping at the high temperature about 100 DEG C, and the cigarette tow with good crimping performance and physical and mechanical performance can be obtained; and in addition, the polylactic acid in the tow has the characteristic of biodegradation, and the environment pollution is reduced.

The invention relates to a polylactic acid filter stick paper element and a manufacturing method thereof, in particular relates to a biodegradable polylactic acid filter stick paper element and a preparation method thereof, and belongs to the technical fields of tobacco tar filter elements and manufacturing methods. The polylactic acid filter stick paper element is prepared from the following raw materials in parts by weight by virtue of melt spinning: 100 parts of polylactic acid and 5-15 parts of a bonding agent, wherein a crystallization nucleating agent accounts for 0.15-0.5% of the mass percentage of polylactic acid; the ratio of a laevo isomer in the polylactic acid is 95-99%; the crystallization nucleating agent is a mixture of a substituted aryl lithium phosphate salt Na-03 and nano calcium carbonate, the substituted aryl lithium phosphate salt Na-03 accounts for 0.10-0.30% of the mass of the polylactic acid, and the nano calcium carbonate accounts for 0.05-0.2% of the mass of the polylactic acid. The materials used by the paper element are rich in resource, the manufacturing cost is low, the curling property index, tensile strength, filtration efficiency and quality characteristic of the filter stick paper element prepared by the method are close to those of cellulose acetate smoke filter material, and the polylactic acid filter stick paper element is biodegradable.

The invention discloses a polyphenylene sulfide short fiber spinning oil and a preparation method thereof. The polyphenylene sulfide short fiber spinning oil comprises the following compound raw materials by weight percentage: 25-50 percent of antistat, 15-25 percent of smoothing agent, 18-35 percent of saturant, 5-20 percent of emulsifier and 2-8 percent of modifier. According to the weight percentage of each raw material component, the accurately metered antistat, smoothing agent, saturant, and emulsifier are pumped into a reaction pot, heated to 50-80 DEG C, and uniformly mixed; the modifier is pumped into the reaction pot, agitated for 1-3 h, cooled, filtered, unloaded and packaged. The polyphenylene sulfide short fiber spinning oil has good anti-static electricity performance, smoothness, saturation and the like, is uniform and stable in oil loading, can ensure smooth operation of spinning production and postprocessing working procedure, and satisfies production requirements on spinning effect and the mechanical performance of the fiber.

The invention discloses a method for producing PBT (Polythylene Terephthalate) color point core spun yarns. The method comprises the following steps: selecting yarn materials; performing process procedures of the PBT color point core spun yarns; implementing the specific production process. According to the method disclosed by the invention, acrylic fibers serve as raw materials of the points, the color point has rich colors, the color is bright, the stereoscopic impression is excellent, and the price can be saved by 20000 Yuan per tonnage compared with that of common chinlon points. A waterproof agent is diluted according to a ratio and uniformly sprayed onto the points, and the points are dried and roasted at a high temperature, so that the colored point achieves a water-repellent effect, the colored points are prevented from being loosened in the subsequent processing procedure, staining of dyes on the color points is reduced in the dyeing process, the shape and brightness of the color points can be guaranteed, and the quality of the yarns is improved. The PBT serves as the core yarn, viscose cotton serves as an outer packaging material, and the problems that the spandex core-spun yarns are poor in acid resistance and chlorine resistance and have non-ideal dyeing effect are solved. The color point core spun yarns produced by the method disclosed by the invention are excellent in fluffiness and crimpiness and high in elasticity and shape stability and have hand feel of cashmere.

The invention discloses a tow with a high crimp index for a polylactic acid cigarette and a preparation method for the tow. The tow is prepared from the following raw materials by a melt spinning method: 99-100 percent by weight of polylactic acid, 0.1-0.5 percent by weight of nanoscale titanium dioxide, 0.1-0.5 percent by weight of hydrated magnesium silicate ultrafine powder, wherein the linear density of the tow is 3.5-5.0 ktex, the linear density of a single filament is 2-5 dtex, the crimp number is 18-28/25 mm and the crimp index is 0.45-0.65. According to the tow and the preparation method disclosed by the invention, a nucleating agent is added into a polylactic acid raw material, so that the crystallization rate is increased and the crystallinity degree and the thermal performance of fibers are improved, and further the crimp temperature in the subsequent spinning crimp work procedures is increased to 85-95DEG C and the crimp performance is improved; and the crimp index of the whole tow is improved to about 0.55. The tow with high crimp index for the polylactic acid cigarette has better crimp performance; and under the same conditions, unit weight tows can be used for preparing more filter rods, and thus the economic benefits are increased.

The invention relates to the field of printing equipment, in particular to a digital printing machine for wide Dacron wall cloth. According to the following technical scheme, the digital printing machine for the wide Dacron wall cloth comprises a rack, a printing device arranged on the rack, a conveying device and a heating device arranged on the rack, the heating device comprises a fixing zone, a low-temperature preheating zone and a medium-temperature fixation zone, and the fixing zone, the low-temperature preheating zone and the medium-temperature fixation zone are sequentially connected to the rack in the conveying direction of the wide Dacron wall cloth and located between an unreeling roller and a reeling roller. According to the digital printing machine for the wide Dacron wall cloth, the structure is simple and implementation is facilitated; the digital printing machine comprises the conveying device and the heating device, the wide Dacron wall cloth can be conveyed flatly, force is borne evenly, and the process requirements for low-temperature color development, medium-temperature fixation and drying and heat dissipation of the wide Dacron wall cloth can be met.

A method for spinning blended yarns with Outlast air-conditioning fibers/Newdal fibers is characterized by configuring the ingredients Outlast air-conditioning fibers/Newdal fibers according to the weight ratio of 95-85:5-15; opening the Outlast air-conditioning fibers and the Newdal fibers respectively and spraying antistatic agents; processing the Outlast air-conditioning fibers in a plucker, a blender, a card wire opener, a double-hopper feeder, a lap machine, a carding machine and a pre-drawing machine, and processing the Newdal fibers in the plucker, the blender and opener, a multi-bin blender, a sawblade beater type opener, the double-hopper feeder, the lap machine, the carding machine, the pre-drawing machine, a silver lap machine and a comber; and finally feeding the processed Outlast air-conditioning fibers and Newdal fibers into a drawing machine, a roving frame, a spinning frame and a bobbin winder. The method retains the temperature regulation characteristic of the Outlast air-conditioning fibers and higher strength and wet modulus, excellent breaking elongation and unique high crimp property of the Newdal fibers and ensures the products to have better spinning processibility.

The present invention relates to a hair iron which can reduce hair damage while forming straight or curled hair. According to an aspect of the present invention, disclosed is a hair iron configured to allow hair to pass between a first heating body and a second heating body formed to extend along the front and rear direction, the hair iron comprising: a first heating body which includes a first central part configured to have a plate-shaped surface extending along the front and rear direction, and a comb tooth protrusion part in which a plurality of comb teeth protrusions having ridges which extend and protrude along the lateral direction of of the first heating body are arranged symmetrically on the left and right sides of the first central part along the front and rear direction of the first heating body; and a second heating body which includes a second central part configured to have a plate-shaped surface extending along the front and rear direction, and a receiving groove part in which a plurality of protrusion receiving grooves for receiving each of the comb teeth are arranged symmetrically on the left and right sides of the second central part along the front and rear direction of the second heating body.

The invention discloses a large-diameter polymer bent filament. The large-diameter polymer bent filament is composed of a polymer and a master batch, wherein the weight percent of the polymer is 95-100% and the weight percent of nano powder is 0-5%; the polymer is composed of one or more of polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate and polypropylene; the master batch is a nano calcium carbonate master batch or a nano titanium dioxide master batch; the filament is 0.05-2mm in diameter or equivalent diameter; the monofilament intensity is more than or equal to 3.0CN/dtex; the elongation at break of the monofilament is 15-35%; the bending rate is 25-35%; the bending stability is more than or equal to 85%. The large-diameter polymer bent filament has the advantages of simple process, convenience in operation and wide application range; the formed fiber has the characteristics of high tenacity, excellent bending performance and high uniformity and the like.

The invention relates to the field of cable manufacturing equipment, in particular to cable manufacturing equipment. The cable manufacturing equipment comprises a supporting structure, a dust removingstructure, a telescopic structure, a winding structure, a height adjusting structure, a guide structure and a conveying structure, wherein the height adjusting structure is arranged inside the supporting structure, the end part of the height adjusting structure is connected with the winding structure, the winding structure and the supporting structure are connected in a sliding mode, then the winding structure can be driven to slide on the supporting structure through the height adjusting structure, and then winding frames with different diameters can be fixed conveniently, so that winding ofcable frames with different diameters is facilitated, and the winding flexibility is greatly improved; and the dust removing structure is arranged at the end part of the telescopic structure, then after the position of the dust removing structure is adjusted, cables are limited and guided through the dust removing structure, meanwhile, cooling and dust removal of the cables can be conveniently carried out again, so that the packaging of a heat shrinkable film is influenced at the later stage caused by too high temperature is avoided, and meanwhile, the dust and sweeps are prevented from beingadhered to the cables.

Disclosed is a hairdressing agent with Chinese traditional medicine as main material and method for preparing, wherein the hair-waving agent comprises agent 1 and agent 2, the agent 1 employs cystinic acid as the reducing agent, sodium hydrogen sulfite as auxiliary reducing agent, traditional Chinese medicinal clove as penetrating agent, while the agent 2 employs hydrogen peroxide and belamcanda rhizome as combination oxidizing agent, clove as penetrating agent. The two portions of the agent are prepared separately and used in combination.

The invention discloses a cold-state curling method for producing para-position aramid short fibers. The method comprises the following steps of: bunching aramid filaments, washing by the oil washing of an oil washing tank or hot water bath or a low-pressure steam heat box, and curling the softened aramid filaments in a mechanical stuffing curling box; after curling the aramid filaments, drying the curled fibers in a drying oven at the temperature of between 80 and 140 DEG C; and performing tensioning, and cutting the fibers off in a cut-off machine to obtain the para-position aramid short fibers with high curling performance. According to the method, before entering the curling box, the fibers are not needed to be subjected to high-temperature preheating treatment at the temperature which is higher than the glass transition temperature of 340 DEG C of the fibers so as to soften molecular chain segments, the fibers are not needed to be heated at high temperature in the curling box, and the curled fibers are not needed to be subjected to high-temperature setting of about 340 DEG C.