72results about How to "Good bulkiness" patented technology

A spontaneously degradable fiber excellent in bulkiness, softness, stretchability and feeling, which comprises (A) a low heat-shrinkable fiber component comprising a high crystalline aliphatic polyester and (B) a high heat-shrinkable fiber component comprising an aliphatic polyester, e.g., a low crystalline or non-crystalline aliphatic polyester, and a block copolymer or a mixture the main component of which is an aliphatic polyester and which comprises a high-melting component and a low-melting component. Further, fibers excellent in self-crimpability or self-adhesion property and dividable fibers are obtained by suitably combining the fiber components (A) and (B) to form conjugated fibers or composite yarns.

A spontaneously degradable fiber excellent in bulkiness, softness, stretchability and feeling, which comprises (A) a low heat-shrinkable fiber component comprising a high crystalline aliphatic polyester and (B) a high heat-shrinkable fiber component comprising an aliphatic polyester, e.g., a low crystalline or non-crystalline aliphatic polyester, and a block copolymer or a mixture the main component of which is an aliphatic polyester and which comprises a high-melting component and a low-melting component. Further, fibers excellent in self-crimpability or self-adhesion property and dividable fibers are obtained by suitably combining the fiber components (A) and (B) to form conjugated fibers or composite yarns.

A crimped polyester fiber which is made of a polytrimethylene terephthalate polyester, is three-dimensionally crimped so as to have a number of crimps of 9 to 30 per 25 mm and a percentage crimp of 20 to 50%, and has a crimp elasticity of 80% or higher; and a fibrous structure which comprises short fibers of the crimped polyester fiber and short heat-bondable composite fibers in a weight ratio of from 30/70 to 95/5 and in which at least part of the points where the two kinds of short fibers are in contact with each other and/or the points where the short heat-bondable composite fibers are in contact with each other have been thermally fixed.

The invention discloses a preparing method of a novel flame-retardant heat-insulation elastic polyester material. The preparing method includes the steps that phosphorus co-polymerized permanent flame-retardant polyester chips are pre-crystalized and dried, and then the water content is smaller than or equal to 30 ppm; spun filaments are obtained through spinning, and after the spun filaments are balanced and bundled, 2-10 D flame-retardant three-dimensional spiral crimped hollow polyester fibers are obtained through drafting, crimping, cutting-off and relaxation heat setting; 85-95wt% of flame-retardant three-dimensional spiral crimped hollow polyester fibers and 15-5wt% of low-melting-point polyester staple fibers are mixed evenly, treated in the mode of blowing, carding and lapping and then thermally bonded through a hot mill or a hot air dryer. The material is superior in performance and can replace polyurethane foaming plastic to be used as a furniture pad material, a vehicle seat pad material and various soft pad laminated composite materials.

It is a problem of the present invention to provide a normal pressure cationic dyeable polyester being cationic dyeable under normal pressure, and having high strength. The problem can be solved by a normal pressure cationic dyeable polyester, characterized by being a copolymerized polyester having a main repeating unit including ethylene terephthalate, and including, in an acid component forming the copolymerized polyester, a metal salt of sulfoisophthalic acid (A) and a compound (B) which is a phosphonium salt of sulfoisophthalic acid or the like in such a state as to simultaneously satisfy the two mathematical expressions. Preferably, the glass transition temperature of the copolymerized polyester is within the range of 70 to 85° C., and the intrinsic viscosity of the copolymerized polyester is within the range of 0.55 to 1.00 dL/g. Further, by melt spinning the copolymerized polyester, it is possible to provide a polyester fiber.

The invention discloses a far infrared finishing method of negative ions of silk floss quilts, which is characterized in that the method comprises respectively preparing finishing maceration extract A and B, and finishing maceration extract A comprises nanometer negative-ions far-infrared radiating body and dispersing agent and water, and finishing maceration extract B comprises low temperature cementing compound and silk cotton softening agent, placing finishing maceration extract A in dry silk cotton after heating, dipping for at least 40 minutes, dewatering, and drying to the wet containing rate which is 8-12%, utilizing finishing maceration extract B to dip and handle for 30-40 minutes, producing a silk floss quilt with a conventional method after centrifugally dewatering and drying. The silk floss quilt of the invention can effectively release negative ions, omnidirectional emission rate of the far infrared method can reach 88%, and the invention can effectively improve qi-blood circulation of human bodies, which plays an excellent health care effect, meanwhile, the invention is soft, whose bulkiness property is excellent, and has excellent performance property.

According to the present invention, it is possible to obtain a non-woven fabric that is excellent in bulkiness, flexibility, and feeling, in which less fibers drop out even in the case wherein the non-woven fabric is used for an application such as clothing items and a wiping cloth in which a surface of a non-woven fabric is rubbed, that is, excellent in a lint-free property.

A mixed continuous fiber non-woven fabric in accordance with the present invention is characterized by comprising a split continuous fiber and a crimped continuous fiber, and is preferably characterized in that a total amount of the crimped continuous fiber is in the range of 10 to 90% by weight (where a total weight of a split continuous fiber and a crimped continuous fiber is 100% by weight).

The present invention generally relates to a process for the extraction and preparation of bast fibers with high quality and high counts. The process is suitable for ramie, hemp and flax. The present invention also relates to bast fibers with high counts produced according to the process, as well as pure yarns and mixed, blended yarns made from said bast fibers.

The invention provides an injected melt direct-spinning production process for PET-PTT composite elastic fibers. The process is characterized in that PET is subjected to the polymer-melt directly spinning treatment and PET is subjected to the slice screw melting treatment. After that, the melted PTT is injected into a spinning manifold and then is subjected to the jet spinning treatment at a spinneret orifice together with the PET melt side by side to form a side-by-side wire structure. Finally, composite elastic fibers are prepared and the mass ratio of PET to PTT in the eventually produced composite elastic fibers is 1:1. According to the technical scheme of the invention, the melt direct-spinning treatment of the PET is adopted, so that the special melting process is avoided. The slice screw melting treatment of the PTT is adopted, and the melted PTT is injected into the spinning manifold to be sprayed out as spun fibers together with the PET melt at the injected into a spinning manifold side by side so as to form the side-by-side wire structure. Therefore, the energy is saved, and the melt degradation is reduced. The eventually produced composite elastic fibers are good in quality and the fiber breakage strength thereof is larger than or equal to 2.5 CN/dtex. Meanwhile, the breakage elongation of the composite elastic fibers is larger than or equal to 20%, and the crimp elasticity thereof is larger than or equal to 90%. Therefore, the composite elastic fibers are good in quality.

The invention discloses a method for preparing low-gel-strength eucheuma carrageenan, and belongs to the field of fine chemical engineering. The method comprises the following steps of: cleaning eucheuma, cutting, and grinding; performing two-stage hydrolysis by using acid liquor; saponifying for degreasing by using alkali liquor; and drying, grinding, and sieving to obtain a low-gel-strength eucheuma carrageenan product. Processes of boiling and pulping, performing pressure filtration on sol, extracting and separating, and the like in the traditional process are not needed, so that the production process has the advantages that: the process is simple and convenient, the period is shortened, energy consumption is reduced, and the like; the molecular weight, viscosity and gel strength of the low-gel-strength carrageenan product produced by the method are reduced, the solubility, dissolvability and dissolution rate of the carrageenan product are improved, and the dissolution temperature of the carrageenan product is reduced; and when foods such as pastries, steamed buns and the like are processed, a large amount of carrageenan product can be directly added into flour and is not required to be dissolved in advance, the edible value of the foods is not influenced, and the foods cannot be hardened, are low in heat and can be used as high-quality diet foods and health-care foods for patients with diabetes.

The invention discloses a grilled fish bone swelling agent which comprises the following components by mass percentage: 30-40% of sodium bicarbonate, 10-15% of monocalcium phosphate, 0.5-1% of xanthan gum, 40-50% of gluconic acid-delta-lactone, and 5-9% of soybean phosphatide powder. The swelling agent is reasonable in formula, and good in swelling effect and storability, and can allow a grilled fish bone to have a loose structure and a crispy taste and be easy to chew. The invention further discloses a preparation method of the grilled fish bone swelling agent. The method comprises the step of uniformly mixing sodium bicarbonate, xanthan gum, gluconic acid-delta-lactone and soybean phosphatide in proportion. The preparation method is simple in processing step, high in operability and low in cost, and is suitable for industrial production.

The invention relates to an alloy fiber and a preparing method thereof, in particular to an alloy fiber of polyethylene terephthalate and polyethyleneglycol-2-6-naphthalene and a preparing method thereof. The alloy fiber of polyethylene terephthalate and polyethyleneglycol-2-6-naphthalene is prepared by melting, blending and spinning the polyethylene terephthalate and the polyethyleneglycol-2-6-naphthalene, and the polyethyleneglycol-2-6-naphthalene accounts for 1-15% of the weight of the alloy fiber. The invention also discloses a preparation technique of the alloy fiber. The invention well solve the problem of the blending condition of PEN and PET and provides good foundation for producing high-quality spinning melt. The alloy fiber prepared by the method has the characteristics of good rigidity (reflected by the supporting performance of the fiber) and bulkiness, and provides wider development space for the production of distinct chemical fiber.

Disclosed is a 3-D crimp polyethylene terephthalate multifilament (BCF) having a stress-strain curve that (a) it elongates less than 5.0% when subjected to an initial stress of 1.0 g/d, (b) it has an initial modulus of 20 to 60 g/d, (c) it elongates at least 20% when subjected to a stress region of 1.0 to 2.5 g/d and (d) it elongates from a tensile strength of at least 3.0 g/d to the tensile strength at break. The BCF has improved physical properties such as excellent flame retardancy, high toughness, improved crimp uniformity and improved compressive elasticity modulus.

The invention relates to a manufacturing method of a hollow regenerated cellulose fiber. The manufacturing method comprises the following steps of: preparing a spinning viscose solution through working procedures of soaking, squeezing, grinding, aging, yellowing, dissolving, filtering and defoaming on cellulose pulp, then spinning, in the dissolving step out of the working procedures for the preparation of the spinning viscose solution, adding one or mixture of water-soluble vinylon, a denaturing agent and a crosslinking agent, and then spinning to prepare the hollow regenerated cellulose fiber, wherein the fineness of the hollow regenerated cellulose fiber is 2.22-3.33 dtex, the dry strength of the hollow regenerated cellulose fiber is 2.2-2.6 cN/dtex, the wet strength of the hollow regenerated cellulose fiber is 1.2-2.0 cN/dtex, the degree of hollowness of the hollow regenerated cellulose fiber is greater than or equal to 70%, and the dry elongation is 10-20%. The manufacturing method is simple to operate, does not need special processing technology or equipment, does not release gas in a spinning process, and solves the problems such as reduction of the end breakage rate in spinning. The produced hollow fiber not only has high degree of hollowness, but also cannot collapse or deform due to after finishing and machining.

The invention relates to a far-infrared radiation hollow three-dimensional crimped polyester fiber in the fields of chemical engineering, polymer and chemical fiber manufacturing and a manufacturing method thereof, which combines 0.3-0.5 μm composite inorganic far-infrared ultrafine The coupling agent and surfactant are added into the high-speed mixer together for dry surface treatment. The superfine material powder after surface treatment is mixed with the polyester carrier in the high-speed mixer, and the mixed powder obtained is sent to the twin-screw extruder. Co-extrusion, its working temperature is 10-30°C lower than that of conventional color masterbatch. The far-infrared masterbatch and polyester chips obtained above are fed to the mixer through the metering feeder for mixing, and then sent to the production of hollow three-dimensional The crimped fiber is spun by a screw spinning machine, and the final product obtained is the far-infrared radiation hollow three-dimensional crimped polyester fiber of the present invention.