35results about How to "Excellent liquid absorption" patented technology

The invention provides absorbent hydrogel compositions and hydrogel-containing structures. Typically, a first portion of the novel materials comprises a porous flexible plasticised hydrophilic polymer matrix having an internal cellular structure, and a second portion is relatively non-porous, e.g. comprises a flexible plasticised hydrophilic polymer matrix having relatively continuous internal structure. Methods for the manufacture or such hydrogels and structures are provided, as well as uses thereof.

The invention discloses polymer electrospun fibers, which comprise the following components in percentage by mass: 80 to 100 percent of polymer and 0 to 20 percent of pH regulator, wherein the polymer is a hydrophilic polymer and/or slightly hydrophilic polymer. The fibers have better liquid absorptivity than the traditional fibers and can be widely used. The preparation method is simple in operation, can be adjusted according to actual needs and is suitable for industrial production. The invention also discloses a medicinal compound or fiber dressing prepared by using the polymer electrospun fibers, and the medicinal compound or the fiber dressing can be directly used for treating wounds and/or protecting the wounded from pollution. Compared with the traditional dressing, the medicinal compound or the fiber dressing have the advantages of reducing pains in the wounded, along with convenient removal.

The invention provides a preparation method of an absorption material with high absorption capacity and an application of the absorption material in medical and health products. The preparation methodof the absorption material with high absorption capacity comprises the following steps: 1) preparing an aqueous phase solution containing a surfactant; 2) preparing a polyurethane prepolymer which contains a super-water absorbent polymer and is terminated by an isocyanate group; 3) mixing the aqueous phase solution with the polyurethane prepolymer at a high speed, and quickly transferring the mixture to a mold or release paper to obtain a composite foam body; and (4) drying the composite foam obtained in the step (3) to remove moisture, so as to obtain the absorption material with a foam porestructure and high absorption capacity. The absorption material is particularly suitable for being used in the medical and health products, can be produced in a safe, simple and convenient mode, is high in biological safety, has good liquid absorption performance and low shrinkage rate, and can meet the dry and wet mechanical properties required by application.

The present invention provides: an absorbent structure and an absorbent article, which are excellent in both liquid diffusion ability and liquid storage ability, and which are excellent in the dry feeling and the amount of wet back of the aqueous liquid, and which can realize the thinning and lightening more; and a water-absorbent resin fitly usable for the above absorbent structure and absorbent article. The absorbent structure, according to the present invention, comprises a liquid-diffusing member and a water-absorbent resin, with the absorbent structure being characterized in that when the capillary absorption index of the liquid-diffusing member at a height of 40 cm is referred to as A (A≧0.10), the capillary absorption index B of the water-absorbent resin at a height of 40 cm satisfies the following equation: B/A≧0.7 (equation 1).

The invention discloses an electrostatic spinning device, comprising a liquid storage pot, a power supply and a spinning device, wherein, the liquid storage pot is provided with a liquid inlet and a liquid outlet, the power supply is connected with the liquid storage pot by a circuit, the spinning device is communicated with the liquid outlet of the liquid storage pot, and the anode of the power supply is connected with the liquid storage pot and the spinning device by a lead wire. The device can take a wound as a receiving device while preparing polymer electrospun fiber by electrostatic spinning and directly forms a film on the wound to obtain a medical compound; and the obtained compound can be directly applied to the surface of the wound and stably covers the wound.

The oriented resin film is obtained by forming an aqueous heat-sealable resin coat layer (E) on a base material film having a liquid absorption coefficient of >=5ml/m2(ms)1/2.

The invention discloses novel oil absorbing cotton. The novel oil absorbing cotton comprises an oil absorbing cotton body, wherein the oil absorbing cotton body comprises an oil absorbing layer and a hydrophilic film layer fixed on the oil absorbing layer, the hydrophilic film layer is made of non-woven fabric formed by compounding viscose and polypropylene, the oil absorbing layer is made of polypropylene, and a plurality of oil seepage holes are formed in the hydrophilic film layer. The hydrophilic film layer is arranged on the oil absorbing layer and can quickly and completely absorb oil floating on a water surface; the novel oil absorbing cotton replaces current oil spill chemical dispersants, causes no pollution to water while absorbing oil on the water surface and is efficient and environment-friendly. The oil seepage holes are formed in the hydrophilic film layer and can effectively absorb oil on the water surface by guiding the oil into the oil absorbing layer, and the oil absorbing efficiency is greatly improved.

The invention discloses thin dust-free paper for liquid absorption and a preparation method of the thin dust-free paper. The thin dust-free paper is prepared from, by weight, 10-40 parts of an upper isolation layer, 20-50 parts of a water absorption layer and 10-40 parts of a lower isolation layer, wherein the upper isolation layer is prepared from, by weight, 50-80% of wood pulp fiber and 20-50%of ES fiber, the water absorption layer is prepared from, by weight, 50-80% of wood pulp fiber, 1-5% of polymer water absorbing resin and 10-30 % of ES fiber, and the lower isolation layer is preparedfrom, by weight, 50-80% of wood pulp fiber and 20-50% ES fiber. The dust-free paper has the advantages that no adhesive is added, the dust-free paper is directly heated for formation, not only is thecost saved, but also the thickness is lower, the weight is lower, the water absorption is faster and the drainage effect is better.

The invention discloses a collagen-loaded alginate medical dressing and a preparing method thereof, and belongs to the technical field of medical dressings. Firstly, collagen is added into a certain amount of pure water, and the mixture is fully stirred to completely dissolve the collagen into the water; then a certain amount of ethanol is added into the aqueous collagen solution, and the mixtureis fully stirred and uniformly dispersed; and finally the obtained collagen solution with a water-ethanol mixture system is added into a mist spraying device and an alginate non-woven fabric is sprayed uniformly with the solution, and aired naturally to obtain the medical dressing. The prepared medical dressing when used for wound nursing has excellent properties of alginate medical dressings andthe collagen, and has advantages of capabilities of accelerating wound healing, reducing scar formation, relieving wound pain, preventing adhesion with wounds, and the like.

The invention provides a preparation method of a high-concentration essence master batch, relates to a master batch capable of continuously releasing fragrance, in particular to a preparation method of a high-concentration essence master batch, and belongs to the field of high polymer material processing. The perfume is prepared from the following raw materials in parts by weight: 50-70 parts of carrier resin, 10-20 parts of a flavor enhancer and 20-30 parts of a flavor enhancing absorbent. The essence master batch prepared by the invention can be applied to various thermoplastic resin carriers; compatibility with substrate, the preparation method is simple, the mechanical property of the material is not influenced, the prepared material has lasting pure fragrance and is environmentally friendly and non-toxic, the service life of a fragrant plastic product is prolonged, the process steps in the prior art are simplified under the condition that the quality is not influenced, meanwhile,the process flow in the prior art is optimized, the perfuming effect is better, and the fragrance preservation time is long.

The invention discloses composite oil absorbing cotton for cleaning oil on a water surface. The composite oil absorbing cotton comprises an oil absorbing cotton body, wherein the oil absorbing cotton body comprises an oil absorbing layer and a hydrophilic film layer fixed on the oil absorbing layer, the hydrophilic film layer is made of non-woven fabric formed by compounding polyester and wood pulp cellulose, the oil absorbing layer is made of polypropylene, and a plurality of oil seepage holes are formed in the hydrophilic film layer. The hydrophilic film layer is arranged on the oil absorbing layer and can quickly and completely absorb oil floating on the water surface; the composite oil absorbing cotton replaces current oil spill chemical dispersants, causes no pollution to water while absorbing oil on the water surface and is efficient and environment-friendly. The oil seepage holes are formed in the hydrophilic film layer and can effectively absorb oil on the water surface by guiding the oil into the oil absorbing layer, and the oil absorbing efficiency is greatly improved.

The invention discloses a light incontinence pad for an adult. Two ends of the light incontinence pad for the adult are of sector structures. The light incontinence pad for the adult is characterizedin that the light incontinence pad for the adult is formed by compounding a flow guide layer, an absorption layer and a bottom layer from top to bottom, wherein the flow guide layer is made of dacronwoven fabric with fragrance, and the surface density of the dacron woven fabric with fragrance is 37g/m<2>; the absorption layer is formed by vertically compounding two layers of needle punched non-woven fabrics, the two layers of needle punched non-woven fabrics are made of viscose and polypropylene, and holes are formed in the upper-layer needle punched non-woven fabric; the bottom layer is formed by compounding a PE breathable film and a needle punched non-woven fabric, and the material of the needle punched non-woven fabric is the same as that of the needle punched non-woven fabrics of theabsorption layer; the flow guide layer, the absorption layer and the bottom layer are sewn by adopting thread overlocking, and the overlocking thread adopts polypropylene fiber silks. The light incontinence pad for the adult provided by the invention is good in water absorption, can be repeatedly washed, has good functions of resisting bacteria, removing odor, preventing leakage, preventing sideleakage and the like, is attractive in appearance, is comfortable in wearing, and is economical and environmentally friendly.

A hydrophilized cellulose acetate tow band according to the present invention includes a crimped cellulose acetate tow band, and a hydrophilizing component having an HLB value of 16 or more. The cellulose acetate tow band includes a cellulose acetate having a degree of substitution of 2.0 to 2.6. The cellulose acetate tow band has a total denier of 10000 to 40000 and is crimped in a number of crimps of 30 to 60 per inch. The hydrophilizing component is impregnated on the cellulose acetate tow band in an amount of 0.2 to 2 weight percent relative to the cellulose acetate tow band. The hydrophilized cellulose acetate tow band may further include a textile oil, where the textile oil is impregnated on the crimped cellulose acetate tow band in an amount of 0.2 to 2 weight percent relative to the cellulose acetate tow band, in addition to the hydrophilizing component having an HLB value of 16 or more.

The invention discloses a wound surface liquid dressing and a preparation method thereof; the liquid dressing comprises bleached shellac, a plasticizer, gallate octacosyl ester (GA-C28) and a solvent system; the liquid dressing disclosed by the invention is a spraying type GA-C28/bleached shellac wound surface liquid dressing prepared by taking the GA-C28 as an active component and taking the natural, nontoxic and degradable bleached shellac as a film-forming matrix; and the spraying type GA-C28/bleached shellac wound surface liquid dressing can quickly form a film on the surface of skin, has good film permeability and liquid absorbability, has certain deformation resistance, has good anti-inflammatory and healing effects on wounds, is high in wound surface healing speed and healing rate, meets relevant requirements of national standards, satisfies the requirements on the wound surface liquid dressing in daily life and medical treatment, and has better the application prospect. The preparation method of the liquid dressing disclosed by the invention is simple to operate, mild in process condition and suitable for industrial large-scale production.

A subject of the invention is to provide a fiber and a fibrous formed body, particularly, a nonwoven fabric all having an exceptional color fastness and high liquid absorption properties and high durable hydrophilic properties. This is attained by a fiber essentially based on at least one kind of thermoplastic resin, wherein a fiber treating agent containing component (A) to (D) described below is attached to the fiber, with specific ratio of each of component (A) to (D), wherein (A) is an alkyl phosphate metal salt in which the number of carbons of an alkyl group is less than 10; (B) is a trialkylglycine derivative; (C) is a hydroxycarboxylic acid; and (D) is an alkyl phosphate metal salt in which the number of carbons of alkyl group is in the range of 10 to 14.

A nonwoven fabric composite includes a spunbond nonwoven fabric layer having a plurality of bonded fibers, an air-laid nonwoven pulp web layer having a plurality of pulp fibers and overlying the spunbond nonwoven fabric layer to cooperatively form an inner laminate with the pulp web layer, and a pair of nonwoven carded fiber web layers each having a plurality of carded fibers. The nonwoven carded fiber web layers sandwich the inner laminate therebetween. The bonded fibers, the pulp fibers, and the carded fibers are entangled with one another. A ratio of tensile strength of the nonwoven fabric composite in a machine direction to tensile strength of the nonwoven fabric composite in a cross-machine direction is not greater than 4.