36results about How to "Improve moisture absorption and release performance" patented technology

The invention discloses a sericin post-finishing method for cotton fabrics, which comprises the following steps: (a) configuring settling impregnation liquid: dissolving 3-5% of dissolvable sericin powder counted by mass in hot water, and then adding 1-3% of chitosan quaternary ammonium salt, fully stirring and dissolving, and adding 4-6% of cross-linking agent, and (b) completely steeping the cotton fabrics in the settling impregnation liquid at a solution bath ratio of 1:(30-50), steeping for at least 20 minutes, twice steeping and twice rolling, keeping mangle expression more than 80%, anddrying, thereby obtaining the cotton fabrics. The invention develops the post-finishing method special for the cotton fabrics. The cotton fabrics prepared according to the post-finishing method have better washing fastness and anti-bacteria rate; after the cotton fabrics are washed for five times, a dissolving loss rate is about 0.21% and the anti-bacteria rate is 93.8%; the practical use requirement is fully met; and an extraordinary technical effect is obtained.

Disclosed herein is a moisture-absorbing and desorbing polymer, characterized in that, the said polymer is an organic high-molecular substance containing 1.0-8.0 meq / g of carboxyl group of a potassium type and having a cross-linking structure.

The invention relates to the field of inorganic functional powder, in particular to a preparation method of a diatom-based hydrated calcium silicate powder moisture regulating material. Diatomaceous earth serves as a natural mineral raw material and is subjected to a combination reaction with calcium raw materials and water in high-temperature saturated steam to form the powder moisture regulatingmaterial with hydrated calcium silicate as a main component. The method is characterized by comprising the steps that (1) diatomaceous earth and the calcium raw materials are matched and evenly mixedaccording to a certain proportion, mixing water the mass of which is 20-50% of that of the dry materials is added, and mixing continues to be conducted until the materials are completely uniform; (2)the reaction mixture is subjected to a hydrothermal reaction in the saturated steam environment at 120-240 DEG C for 2-24 hours; (3) an obtained sample is dried and moderately ground to obtain the diatom-based hydrated calcium silicate powder moisture regulating material. By means of the method, the powder material with hydrated calcium silicate as the main component can be obtained, the abundantmesoporous structure of diatomaceous earth can be reserved to a certain extent, the powder material is endowed with the considerable moisture absorption and desorption capacity accordingly, and the moisture regulating performance is excellent.

The invention discloses a sericin post-finishing method for cotton fabrics, which comprises the following steps: (a) configuring settling impregnation liquid: dissolving 3-5% of dissolvable sericin powder counted by mass in hot water, and then adding 1-3% of chitosan quaternary ammonium salt, fully stirring and dissolving, and adding 4-6% of cross-linking agent, and (b) completely steeping the cotton fabrics in the settling impregnation liquid at a solution bath ratio of 1:(30-50), steeping for at least 20 minutes, twice steeping and twice rolling, keeping mangle expression more than 80%, anddrying, thereby obtaining the cotton fabrics. The invention develops the post-finishing method special for the cotton fabrics. The cotton fabrics prepared according to the post-finishing method have better washing fastness and anti-bacteria rate; after the cotton fabrics are washed for five times, a dissolving loss rate is about 0.21% and the anti-bacteria rate is 93.8%; the practical use requirement is fully met; and an extraordinary technical effect is obtained.

It is intended to provide a fabric which is comfortable for a wearer and shows neither stickiness nor stuffiness in sweating. The above object can be achieved by a cellulose fiber blended fabric characterized by containing cellulose fiber having a dimensional change rate upon water absorption of 2% or above. When employed in sport wears, inners, outers and so on, this fabric can give comfortableness to wears.

To provide a highly moisture-absorbing / desorbing black fiber having excellent processability and more excellent blackness stability than conventional fibers, while having moisture-absorbing / desorbing properties, heat-generating properties due to moisture absorption, and light-to-heat converting properties. SOLUTION: This highly moisture-absorbing / desorbing black fiber is made of a carbon black-containing acrylic fiber into which cross-links are introduced by using a hydrazine-based compound and carboxylic groups are introduced by being hydrolyzed and, if necessary, of which the ratio of protons of the carboxylic groups to metal salts is controlled, so that the fiber has a saturated moisture absorption rate of >=10 wt.%, a dry strength of >=0.8 cN / dtex, and a lightness (L-value) of <=35.

The present invention provides a humidifying device for use in a humidifying room that maintains humidifying capability even if precipitates are generated on a hygroscopic filter, and is maintenance-free for long-term use. Inorganic material (15) with a particle size of 2 μm to 55 μm is loaded on the base material (13) with air gaps (12), and the moisture absorption and desorption filter (11) whose surface is processed into unevenness (16) is due to the absorption and desorption of the surface. The hygroscopicity and desorption are good, and there is no need to absorb water by capillary action, so it is possible to provide a moisture absorbing and desorbing filter (11) that reduces the decrease in humidification capacity due to the adsorption of minerals. In addition, by using the moisture absorption and desorption filter (11), the moisture absorption and desorption filter (11) and the humidifying device are provided without maintenance for long-term use.

The invention discloses an alternate humidity control method for an energy-saving cultural relic cabinet. A humidity adjuster (1) is turned on by operating personnel when the operating personnel go to work in the morning and turned off when the operating personnel are off duty in the afternoon; the humidity of the cultural relic cabinet (3) is adjusted and controlled by the humidity adjuster (1) after the humidity adjuster (1) is turned on; and the humidity of the cultural relic cabinet (3) is adjusted and controlled by a humidity controlling agent (2) after the humidity adjuster (1) is turned off. Compared with the prior art, the method has the following advantages that: 1) by adopting the alternate humidity control method, the humidity in the cultural relic cabinet can still be adjusted and controlled within a set range after the humidity adjuster is turned off; 2) the humidity controlling agent is automatically regenerated when the humidity adjuster works, so that the additional trouble of manual regeneration treatment is saved; 3) the humidity controlling agent has higher humidity adjusting rate and higher humidity content compared with the conventional product; and 4) the energy consumption is greatly reduced.

The invention discloses an anti-oil collagen cashmere composite fabric which is prepared from the following raw materials in parts by weight: 41 to 44 parts of cashmere fiber, 21 to 22 parts of silk fiber, 10 to 12 parts of glass fiber, 0.5 to 0. 7 part of sodium alginate, 8.8 to 8.9 parts of pure collagen powder, 2.8 to 2.9 parts of ethylene glycol diglycidyl ether, 6 to 8 parts of ginkgo biloba leaves, 0.1 to 0.2 part of peppermint oil, 2. 5 to 2.9 parts of nano zeolite powder, 1 to 2 parts of ethyl orthosilicate, 1.4 to 1.8 parts of dimethyldiethoxysilane, 184 to 188 parts of allyl-3-methimidazole chloride, and an appropriate amount of water. The oxygen low temperature plasma is used for pretreatment, ethylene glycol diglycidyl ether is used as a crosslinking agent to graft the modified collagen to the surface of a cashmere composite fiber, and the obtained cashmere composite fabric is durable and resists oil, not only has a good warmth property, but also has relatively high practicality.

This invention discloses new complex cellulose pulp made from cotton, wood, hemp and bamboo and its preparation method. The new complex cellulose pulp is made from random two or more than two of the materials such as cotton, wood, hemp and bamboo. The preparation processes are as fellows: fixing, ishing, cleaning, beating and thiolysis, mixing, scouring to trash, pre-souring, pre-chloridizing, bleaching, treating with acid, scouring to trash, making. This invention advances a new viscose fibre pulp and its preparation method, and it can effectively concentrate the merits of cotton, wood, hemp and bamboo, extracts the quintessence and abandons the bad. The viscose fibre can express different performance, and it can be made from different materials.

The invention discloses an after finishing method for sericin of a cashmere product, which comprises preparation of cross linking agent and a sericin after finishing process. The preparation of cross linking agent comprises steps of pre-emulsification and polymerization, weight percentages of components of the cross linking agent include: emulsifying agent 0.5-2%, cross linking monomer 3-6%, acrylic monomer 30-40%, N-hydroxymethyl acrylamide 1-4%, initiating agent 0.1-0.4%, and deionized water 50-65%. The cashmere product obtained by the invention is excellent in property, fine in washabilityand good in hand feeling, and is novel cashmere with high additional value.

The invention relates to the field of textile natural fibers, and provides a ramie fiber softening method comprising the following step (1) of immersing ramie fibers into a sodium hydroxide solution for swelling treatment; the step (2) of taking out the swelled ramie fibers, and placing the ramie fibers into water; gradually adding acidic solutions till pH is neutral, and washing the ramie fiberswith purified water; the step (3) of freezing and drying the washed ramie fibers, so that gaps of the ramie fibers are reserved; the step (4) of immersing the frozen and dried ramie fibers into ionicliquid with a certain concentration for ultrasonic treatment; the step (5) washing and drying the treated ramie fibers to obtain softened ramie fibers. According to the ramie fiber softening method, the crystallinity and modulus of the ramie fibers can be reduced obviously; since lots of gaps are increased in the ramie fibers, the moisture absorption and release properties of the fibers are improved; and meanwhile, by this way, the chemical composition of the fibers is not damaged, and the antibacterial component of the fibers can be reserved, so that the antibacterial activity of the fibers is reserved.

The invention relates to a preparation method of a spherical composite humidity-controlling material, which comprises the following steps of: a. activating halloysite for 2-3 hours to obtain activated halloysite; b. adding polyacrylic acid into a sodium hydroxide solution obtained by mixing sodium hydroxide with distilled water for neutralization, respectively adding konjac glucomannan, the activated halloysite, potassium peroxodisulfate, N, N'-methylene bisacrylamide and a aluminum chloride solution obtained by mixing aluminum chloride and water into a reactor filled with the neutralized solution, and stirring for reaction; c. adding sodium bicarbonate into the reactor to generate aluminum hydroxide and carbon dioxide, carrying out primary foaming, and stirring for reaction to obtain a synthetic product; d. drying the synthetic product at 80 DEG C and shearing the block synthetic product into small cubic pieces; and e. heating at the temperature of 150 DEG C to decompose aluminium hydroxide and evaporate water, carrying out secondary foaming and drying to obtain the spherical composite humidity-controlling material. The spherical composite humidity-controlling material is simple and convenient to prepare, low in cost, good in effect, environment-friendly and free from pollution.

The present invention provides a humidifier capable of maintaining a humidification capacity even when there are deposits on a moisture absorbing and releasing filter, and not needing maintenance fora long period of time in regard to a humidifier humidifying a room. In the moisture absorbing and releasing filter 11, an inorganic material 15 with a particle diameter of 2-55 [mu]m is carried on a base material 13 having a void 12 allowing passage of air, and a surface is formed into an uneven part 16. Since a moisture absorbing and releasing property in the surface is superior, and sucking of water using the capillary phenomenon is not used, the moisture absorbing and releasing filter 11 with almost no deterioration in the humidification capacity due to adhesion of mineral components can beprovided. By using the moisture absorbing and releasing filter 11, the moisture absorbing and releasing filter 11 and the humidifier not needing maintenance for a long period of time can be provided.

The invention discloses a preparation method of a compound humidifying material, which comprises the following steps of: a, adding 5 parts by mass of sodium chloride and 10 parts by mass of potassium carbonate in 35 parts by mass of water, uniformly stirring to obtain a mixed solution, then adding 15 parts by mass of sodium polyacrylate resin in the mixed solution for later use; b, preparing 5 parts by mass of sepiolite roasted at a temperature of 250-300 DEG C for 2-2.5h, 6 parts by mass of polyvinyl alcohol and 2 parts by mass of urea into a solution, adding the solution into the mixture obtained in the step a, mixing and stirring; c, adding 3 parts by mass of sodium chloride and 66.7 parts by mass of potassium carbonate in 200 parts by mass of water, stirring to obtain a mixed solution; and d, adding the mixture obtained in the step b into the mixed solution obtained in the step c, mixing and uniformly stirring, then drying at 140-150 DEG C in an oven to prepare the humidifying material. The humidifying material has the advantages of low cost, high response speed, good effect and simpleness in process, is convenient to use and is harmless and non-toxic.

This invention relates to a type of compound cellulose mucilage filament and its process. The compound cellulose is arbitrarily made up by two or more native materials of follows: cotton flock, wood,flax, bamboo, straw and crust as material. The process includes follow technologies: dipping, expression, size reduction, triolation, dissolving, filtration, spinning, refining and drying. This invention expands the source of native material, solve the problem of high cost and low efficiency. It also solve the problem of low strength and whiteness when singly use bamboo viscose fiber.

The invention relates to a method for preparing a sodium polyacrylate-halloysite-konjac glucomannan composite humidity conditioning agent. The method comprises the following steps of: (a) activating halloysite at the temperature of 450 DEG C; (b) weighing polyacrylic acid, adding the weighed polyacrylic acid into sodium hydroxide liquid, prepared from sodium hydroxide and distilled water, to neutralize, weighing konjac glucomannan, activated halloysite, nano silver-loaded antimicrobial powder, potassium persulfate, N,N'-methylene-bis-acrylamide, and aluminum chloride liquid, prepared from aluminum chloride and water, respectively adding the weighed konjac glucomannan, activated halloysite, nano silver-loaded antimicrobial powder, potassium persulfate, N,N'-methylene-bis-acrylamide and aluminum chloride liquid into a reactor containing neutralized liquid, and carrying out reaction for 1-2 hours while stirring; (c) cooling a polymer obtained in the step (b) to room temperature, then drying the polymer for 2-3 hours at the temperature of 150 DEG C, and carrying out secondary foaming and pore forming; and (d) crushing a dried humidity conditioning material for 2-3 minutes by using a crusher, thereby obtaining a powdered humidity conditioning agent. According to the method for preparing the sodium polyacrylate-halloysite-konjac glucomannan composite humidity conditioning agent, the humidity conditioning agent has the advantages of rapid humidity conditioning response and moisture absorption and desorption rate, large moisture content / capacity, good relative humidity stability, simplicity and convenience in preparation, low cost, good effect, environmental friendliness, no pollution, no toxicity and harmlessness.

The invention discloses a method for manufacturing breathable moisture absorption modified polyester fibers. The method comprises the following steps of: A) adding sepiolite into a 2 mass percent hydrochloric acid solution in a mass ratio of 1: (6-10), stirring for 0.5 to 1.5 hours, dehydrating and drying, and thus obtaining activated sepiolite; B) adding the activated sepiolite into a 4 mass percent cetyl trimethyl ammonium bromide solution in a mass ratio of 1: (4-6), stirring for 2 to 3 hours, drying, and thus obtaining organic sepiolite; C) taking 0.1 to 0.5 mass parts of glycol diglycidyl diethyl ether, 0.5 to 1.5 mass parts of sodium carboxymethylcellulose, 4 to 6 mass parts of sodium polyacrylate, 0.05 to 0.15 mass part of potassium persulfate, 1 to 3 mass parts of organic sepiolite and 6 to 10 mass parts of water, performing stirring reaction for 1 to 3 hours at the temperature of between 70 and 90 DEG C, drying, grinding, and thus obtaining a modified functional material, the grain diameter of which is not more than 15 microns; and D) adding 5 to 15 parts of functional material into 85 to 95 parts of polyester melt, uniformly mixing the functional material into the polyester melt with high-speed stirring, and spinning by using a spinneret plate with 'cross' special-shaped holes.