47results about How to "Retain natural properties" patented technology

The invention discloses dry heat transfer printing paper and a preparation method thereof for textiles. The method includes preparing viscous fluid with a solid content of 2-10% w/w from a high polymer thickener and a water-soluble hot melt adhesive according to a mass ratio of (1:5)-(5:1); adding assistants such as acid, alkali, an absorbent and a fixing agent into the viscous fluid according to categories of fabric and dye so as to produce a transfer substrate; and subjecting the transfer substrate to coating, drying and press polishing processing for the paper to obtain the dry heat transfer printing paper for the textiles. The paper can generate strong adhesive force on the surface under a certain temperature and pressure and can be tightly attached to the fabric. If the paper is used for printing of non-thermoplastic fabric, modified or dewing treatment is not required any more before the printing, transfer printing can be directly performed on dry-state fabric, the dye transfer stability is guaranteed, and clean and high-quality printed patterns can be obtained; and simultaneously, the processing time is shortened, waste water emission of the printing and dyeing industry is reduced, and energy saving and environment protection are facilitated.

A method for preparing a bamboo fiber by a compound bio-enzyme belongs to the technical field of manufacturing the natural cellulose fiber used for weaving. Bamboo linen is used as raw material; the bamboo linen normally processed is treated in the water liquid of the compound bio-enzyme for 1 to 5 hours, then is treated in a pectase liquid for 1 to 5 hours, then the bamboo fiber is obtained after normal processing; the water liquid of the compound bio-enzyme is any single or mixture of laccase, xylanase, the mixture of the laccase and the xylanase, the mixture of the laccase and cellulose, the mixture of the xylanase and the cellulose as well as the mixture of the laccase, the xylanase and the cellulose; the concentration of the laccase and the xylanase are respectively 20 to 50g/L; the concentration of the cellulose is 2 to 6g/L; the concentration of the pectase in the pectase liquid is 10 to 25g/L. The technique of the method is reasonably designed; the fineness, the intensity and the softness of the prepared bamboo fiber can all meet the weaving requirements.

The invention relates to fructus momordicae sweet and fragrant flavoured decolored condensed juice and a preparation method thereof. The fructus momordicae sweet and fragrant flavoured decolored condensed juice consists of fructus momordicae aromatic volatile oil and sweet and fragrant decoloured condensed juice extracted from peeled baked fruits. The preparation method comprises the following steps of (1) performing saccharification on fructus momordicae and performing after-ripening; (2) peeling the fructus momordicae and performing baking; (3) collecting the aromatic volatile oil in the baking process; (4) extracting the peeled and baked fructus momordicae; (5) performing centrifugal filtering and performing clarification with a ceramic membrane; (6) performing membrane separation, refining and concentration; (7) performing resin decoloring; (8) performing resin debitterizing, removing pesticide residues and removing heavy metals; (9) removing peculiar smell with activated carbon; (10) performing clarification with the ceramic membrane; (11) performing concentration; and (12) performing blending. The fructus momordicae sweet and fragrant flavoured decolored condensed juice is free from bitter substances, has rich fruit flavor and scorch aroma, has refreshing sweet taste and pure mouth feel being similar to cane sugar when being drunk, and is short in sweet taste duration, and high in sweet taste saturation degree. The preparation method is simple to operate, low in cost and suitable for industrial production.

The invention discloses an efficient crushing and separating method for eggshells and shell membranes obtained by incubation and hatching of hatching eggs of poultry. The efficient crushing and separating method comprises the following step: performing suffumigating, drying, primary crushing, vibration screening, electric windwill separation and the like on a complete eggshell (including inner and outer layers of shell membranes) obtained by incubation and hatching. The method is high in crushing and separating efficiency, and the purity of obtained products, i.e. eggshell powder and shell membrane powder, is 98 percent or above, and the moisture content is less than 8 percent; the obtained products are free of pathogenic bacteria, nontoxic, harmless, pollution-free and safe; furthermore, the natural attributes of the eggshells and shell membranes which are obtained by incubation are retained, and the products meet the feed level standard; and the method is suitable for batch processing of breeding poultry incubation fields of different scales, and the eggshells and the shell membranes can be separately used or combined for use so as to develop the breeding value of the nutrition and the functionality of the eggshells and the shell membranes, improve the productivity of the poultry and the disease resistance of livestock, realize reuse of complete eggshell resources obtained by the incubation and reduce the pollution to the environment.

The transferring print carrier has one color pattern layer of water thinned printing ink comprising color material 10-20 wt%, adhesive 50-85 wt% and additive 2-25 wt%. The present invention can transfer color pattern to natural fiber material in one step, and the transferring process has simple operation, low cost, no influence on the property, hand feeling, softness and ventilation of the fiber material and no environmental pollution, and the transferred pattern is clear and bright.

The invention discloses a mogroside sweetness and flavor composition and a preparation method and application thereof. The composition comprises at least one of momordica grosvenori aromatic volatileoil, momordica grosvenori sweet-aroma decolorized concentrated juice, momordica grosvenori pure-flavor decolorized concentrated juice and a mogroside sweet component, wherein the momordica grosvenorisweet-aroma decolorized concentrated juice, the momordica grosvenori pure-flavor decolorized concentrated juice and the mogroside sweet component are not equal to 0. The invention also comprises a preparation method of the composition. The composition does not contain bitter substances, retains the flavor and nutritional ingredients of momordica grosvenori, has rich fruit fragrance and scorch aroma, has refreshing sweetness and pure taste close to sucrose, is short in sweetness duration and high in sweetness saturation, and integrates fragrance, sweetness, taste and nutrients of the momordicagrosvenori; and the preparation process is simple, and the cost is low. The mogroside sweetness and flavor composition disclosed by the invention can be widely applied to the fields of foods, beverages, dairy products, health-care products, medicines and the like.

The invention provides purple composite instant powder. The purple composite instant powder is prepared from the following components in parts by mass: 10-15 parts of blueberry fruit powder, 10-15 parts of waxberry fruit powder, 20-25 parts of purple sweet potato powder, 20-25 parts of purple corn powder, 5-10 parts of purple lily powder and 15-35 parts of auxiliaries. The invention further provides a preparation method for the purple composite instant powder. The purple composite instant powder has the advantages of being rich in nutrient, simple to prepare, and the like.

The invention provides a chitin silk fabric and a processing technology thereof. The processing technology comprises the following steps that S1, spinning is conducted, specifically, 40%-60% of tenceland 40%-60% of chitin fibers are blended to serve as weft yarns; and mulberry silk fibers are used as warp yarns; S2, weaving is conducted; S3, dyeing is conducted, specifically, a treatment solutionis added for pretreatment, a leveling agent is added for dyeing, and a color fixing agent is added for color fixation; and S4, fabric after-treatment is conducted. According to the processing method,the chitin fibers and the tencel fibers are blended and then woven with the mulberry silk, and the obtained fabric has the softness of the real silk, the strength is improved, and the antibacterial effect is achieved.

In order to fully utilize the fast growing wood resources of poplar and eucalyptus, and reduce the production cost of a wooden stair railing, the invention provides a production technology method of a poplar-eucalyptus laminated veneer lumber (LVL) stair railing; and the method comprises the steps of: respectively cutting the poplar and the eucalyptus into more than 3mm of veneers in a rotary way; carrying out enzyme treatment on the veneers; after that, drying the veneers, and controlling the water content to be 10-12%; carrying out gluing assembly on the veneers; carrying out hot-press treatment, wherein the pressure is about 1.2MPa, the temperature is 100-150 DEG C, and the time is controlled to be 1min/ mm; making strips by a multiple-blade saw; carrying out profile milling; and finally, polishing and assembling.

The invention belongs to the field of food processing, and particularly relates to a 9C production method of functional edible vegetable oil. The production method comprises the following steps: cleaning, shelling and crushing an oil material, squeezing the oil material by an ultrasonic aqueous enzymatic method to prepare oil, centrifugally separating, degumming by a cold separation method, dewaxing, ultrasonically esterifying and deacidifying by enzyme, dehydrating, carrying out adsorbing and decolorizing, deodorizing by molecular distillation, deacidifying, and filtering. According to the invention, the finished product functional edible oil is obtained through nine key control points from raw materials; and in order to guarantee the quality of grease, the whole processing procedure is not subjected to ultra-high temperature treatment, so that harmful substances such as benzopyrene, polymers and the like of the grease are reduced to the maximum extent, oil loss is reduced, energy consumption is reduced, the grease yield is high, the color is light, pollution of acid-base chemical reagents is avoided, and the natural property of grease is reserved to the greatest extent.

The invention discloses a production method for separating wood fibers. The method is characterized by comprising the following steps of: 1) peeling solid wood serving as raw materials, and performing initial processing to form a sheet; 2) soaking the sheet in water at the temperature of between 10 and 60 DEG C for 8 to 24 hours to fully soften the sheet; and 3) brushing and cutting the surface of the fully softened sheet by using a brushing and cutting mechanism to obtain brush scraps, namely wood fibers. The process does not pollute environment, is low in cost and energy consumption; and the fibers obtained by separating wood keep the natural chemical properties of the wood fibers, and the process is a real environment-friendly processing technology.

The invention relates to a preparation method of CMCLi and an application thereof, which belong to the field of a lithium battery material. The method comprises the following steps: step 1) dissolvingthe cellulose by using ionic liquid, adding lithium hydroxide and uniformly mixing the materials to obtain first mixed liquid; and step 2: adding an acetylating reagent to the first mixed liquid, andafter the reaction is finished, performing post-treatment to obtain CMCLi. The ionic liquid is selected as a solvent, and then alkalized and acetylated to generate the CMCLi. The generated CMCLi hasa controllable structure, uniform distribution of substituents, high substitution degree of cellulose branch, high flexibility, and high purity.

The invention provides hyperelastic silk fibroin micro-nano hybrid fiber aerogel and a preparation method and application thereof.The preparation method includes the steps that stable silk fibroin micro-nano hybrid fiber dispersion liquid is obtained through non-alkali degumming, deep-eutectic solvent multi-scale stripping, suction filtration washing and ultrasonic dispersion; a faintly acid eutectic solvent system-urea/guanidine hydrochloride and choline chloride/lactic acid system is adopted in stripping; the method is beneficial to protecting the long chain and protein aggregation state structure of the silk, meanwhile, the weak acid system is closer to the isoelectric point of the silk, the silk has the charge neutralization characteristic, the contact area with the deep eutectic solvent system is increased, and the swelling degree is increased. The silk fibroin micro-nano hybrid fiber dispersion liquid is poured into a customized mold and then subjected to freeze-induced self-assembly and freeze-drying, and the silk fibroin micro-nano hybrid fiber aerogel is obtained and has excellent heat insulation and particle filtering performance.

The invention discloses a method for extracting tea polyphenol through using a mixed solvent and relates to the technical field of biological medicines. The method comprises the following preparation processes of A, material preparation; B, juicing; C, coarse powder preparation; D, extraction through using the mixed solvent for first time; E, dry powder I preparation; F, extraction through using the mixed solvent for the second time; G, column passing for first time; H, concentration for first time; I, dry powder II preparation; J, extraction through using the mixed solvent for the third time; K, extraction through using the mixed solvent for the fourth time; L, concentration for second time; M, column passing for second time; N, concentration for the third time; and O, drying. The method has the characteristics of simple operation technology, relatively low cost, relatively high extraction rate, relatively high product purity and the like and is suitable for the extraction of the tea polyphenol in tea and also suitable for the extraction of the tea polyphenol in camellia japonica.

The invention discloses straight-chain terminal cystamine heparin and a biotype artificial blood vessel modified by the same. The structural formula of the terminal cystamine heparin provided by the invention is shown as a formula I. A preparation method of the straight-chain heparin modified biotype artificial blood vessel comprises the following steps of: cutting the disulfide bond in the terminal cystamine heparin by a reducing agent to obtain a sulfydryl locus capable of reacting with a blood vessel stent material; activating the inner surface of the blood vessel by a coupling agent with a bidirectional functional group; and fixing the heparin in a straight-chain shape on the inner surface of the blood vessel material through a chemical bond in a covalent manner so as to obtain a compound type artificial blood vessel with an anticoagulation effect. Compared with the existing method for modifying material surface through heparin carboxyl, the terminal locus reaction maintains the natural characters of heparin molecules to the greatest extent. When the straight-chain heparin is modified on the inner surface of the blood vessel, the resistance of the inner wall of the blood vessel against the platelet adhesion is improved, the anticoagulation performance of the blood vessel is obviously enhanced, and thus the biotype artificial blood vessel is superior to the blood vessel before modification.