38results about How to "Not easy to dye" patented technology

The invention discloses a chitosan modified nylon fabric, which is grafted with 0.1 to 0.2 mass percent of chitosan. The invention also discloses the manufacturing method of the fabric, which comprises: (1) weighing nylon fabric and immersing the nylon fabric in nylon oxidant aqueous solution, heating in a water bath according to a bath ratio ranging from 1:10 to 1:40, and stirring; (2) dissolving the chitosan in 1 to 6 percent of glacial acetic acid, stirring to dissolve the glacial acetic acid to form saturated solution of the glacial acetic acid; (3) weighing chitosan oxidant and adding the chitosan oxidant into the saturated solution of the chitosan prepared in the step (2), stirring uniformly and heating in a water bath; (4) adding the chitosan mixed solution obtained by the step (3)into the nylon oxidant aqueous solution in which the nylon fabric is immersed, heating in a water bath and stirring, wherein the added volume of the chitosan mixed solution is 0.5 to 3 times that of nylon oxidant aqueous solution; and (5) taking finished nylon fabric, washing with a soap, and drying in the air. The modified nylon fabric is smoother and has the effects of inhibiting bacteria, resisting static electricity and the like. The method discloses by the invention is simple, easy to implement and low in cost.

A weaving and dyeing method for unidirectional moisture-wicking elastic fabric, the weaving and dyeing method is sizing → weaving → dyeing → finished product inspection, wherein the dyeing is carried out according to the following process: cold stacking → loose desizing → presetting → dyeing → dehydration drying Dry-clear water setting; the unidirectional moisture-wicking elastic fabric is a double-layer structure, the surface layer is made of hydrophilic and easy-to-dye fibers, and the inner layer is made of polypropylene stock solution dyed yarn, and the polypropylene stock solution dyed yarn is only used as weft yarn, and the polypropylene stock solution The yarn matched with the colored yarn is made of nylon and spandex covered yarn.

The invention relates to a chemical fiber, in particular to a satellite type superfine denier polyamide short fiber as well as a production method thereof. According to the technical proposal of the invention, the fiber is a sea-island short fiber taking low density polyethylene as a sea component and polyamide as an island component, and is characterized in that: the sea component is a mixture of low density polyethylene and polyamide, the polyamide therein forms a plurality of satellite islands around the island, and the titer of the satellite islands is smaller than that of the island; andthe island component and the sea component are in a ratio of 1:0.4 to 2.3, the polyamide and low density polyethylene in the sea component are in a ratio of 1:0.667 to 4, the filament titer ranges from 0.05 to 0.3dtex after the island is separated, and the unit is weight ratio. The chemical fiber can increase the content of effective constituents; and the viscosity of the sea component can make the island difficult to be adhered, and the spinnability in the spinning process is improved, so the sea component and the island component will not be separated easily.

The invention relates to a viscose monofilament production process. Cellulose fiber pulp is adopted as a raw material, and the steps such as spinning solution preparation, spinning, and post-treatment are carried out, such that the viscose monofilament is obtained. The method specifically comprises the process steps that: (A) cellulose fiber pulp is subjected to impregnation, aging, yellowing, dissolving, defoaming, and filtering, such that the spinning solution is prepared; (B) the spinning solution is delivered into a spinning machine, and passes through a spinning hole with a single-hole nozzle under pressure, such that viscose thin stream is formed, and raw filament strip is formed after coagulation molding, wherein jet nozzle stretch is +60% to +80%, and a spinning hole inlet pore channel is in a parabolic shape; and (C) post-treatment is carried out, wherein the raw filament strip is subjected to desulfurization, bleaching, oiling, and bake-drying, such that the viscose monofilament is obtained. With the production process provided by the invention, produced viscose monofilament has fineness of 50-6000D, and high strength higher than 75CN. With the viscose monofilament, requirements by dyeing, weaving and finished garments can be satisfied.

The invention discloses a cobalt blue active dye mixture which is formed by splicing and mixing compounds shown in a structural formula (I), a structural formula (II) and / or a structural formula (III). The cobalt blue active dye mixture comprises the compounds in percentage by mass: 50-70% of the compound shown in the structural formula (I), 0-50% of the compound shown in the structural formula (II) and 0-50% of the compound shown in the structural formula (III). 65-80% of the cobalt blue active dye mixture, 5-10% of a diffuser, 0.1-0.5% of a dust preventive, 5-15% of anhydrous sodium sulphate and 5-10% of a nonionic levelling agent are mixed to prepare a commercial dye. The commercial dye is used for preventing dyeing and printing for cellulose fiber fabrics and has the advantages of bright in color and luster, no phenomenon of kiss spot of leather, high staining fastness of white cloth and clean and environmental-friendly printing process.

The invention relates to a production technology of viscose flat monofilament. The production technology takes cellulosic fiber pulp as a raw material and obtains viscose monofilament with the flatness of (10-500):1 through preparation of a spinning solution, spinning and aftertreatment, and specifically comprises the following steps of: (A) preparing the spinning solution from the cellulosic fiber pulp through steeping, ageing, yellowing, dissolving, defoaming and filtering; (B) feeding the spinning solution into a spinning machine and enabling the spinning solution to pass through a spinneret orifice of a single-hole spray head under pressure, and solidifying and molding the formed viscose trickle to form raw silk strips, wherein the spray head is stretched by +60% to +80%, an inlet channel of the spinneret orifice is in a parabola shape, the shape of the spinneret orifice is '-', 'C' and 'S', and the length-width ratio of the spinneret orifice is (100-1,500):1; and (C) performing aftertreatment: performing desulfurization, bleaching, oiling and drying on the raw silk strips to obtain the viscose flat monofilament. According to the production technology provided by the invention, the cross section of the prepared viscose flat monofilament strip is in a flat shape, and the viscose flat monofilament has an effect of natural hemp fiber and can be widely applied to weaving.

The present invention discloses a production technology of strawberry flesh suitable for hard can milk materials and an application of the strawberry flesh in cold drink products. The strawberry flesh comprises the following accessory materials in parts by weight: 70-90 parts of strawberries, 10-30 parts of white granulated sugar and 0.1-1 part of a thickening agent. The production technology comprises the following steps: all the parts by weight of the strawberries are quick-frozen, the quick-frozen strawberries are cut, the cut strawberries are mixed evenly with all the parts by weight of the thickening agent and 5-25% of all the parts by weight of the white granulated sugar to obtain the mixed materials; the mixed materials are put still for at least 30 min; and the left white granulated sugar is added into the mixed materials, and the mixture is mixed evenly, and the mixture is subjected to honey soaking. The strawberry flesh prepared by the production technology can be directly mixed with hard can milk materials at the normal viscosity without using a freezing machine, the fruit flesh is evenly distributed, the suspension is good, the fruit flesh is not easy to sink, so that the excessive precipitation of the fruit flesh soup juice can be avoided, the freshness and granule integrity of the fruit flesh are enhanced, the dyeing of the soup juice separated out by the milk materials can be reduced, and the strawberry flesh is relatively low in sugar content compared with the prior art and more suitable for the consumption of modern people.

The invention discloses a scratch-proof dyeing process for finished clothes and belongs to the field of dyeing. The process is technically characterized by mainly comprising the following steps of S1,desizing, wherein padding of the clothes is conducted in a desizing agent; S2, cleaning, wherein clean water is utilized to clean the desized clothes to remove the desizing agent in the clothes; S3,dyeing, wherein the clothes are separately loaded in protective bags with multiple through holes, then the protective bags loading the clothes are placed in a finished-clothes dyeing machine, and water mixed with dyes is introduced into the finished-clothes dyeing machine; S4, washing with water, wherein the clothes and the protective bags are cleaned with water, and then the clothes are taken outfrom the protective bags. The process has the effect of preventing the clothes from being scratched during dyeing.

The invention discloses a production method of short fiber wrapping composite yarn. The invention realizes wrapping composite spinning of short fiber and short fiber, which is completed by spinning frame and wrapping device. The production steps are as follows: raw material, cleaning Flowers, carding, drawing, roving, spinning, winding. During the spun yarn spinning process, two rovings spun from different raw materials are fed into each drafting zone. After passing through the double-hole bell mouth, they enter the drafting zone at a fixed distance. Output two strands of equal length, one is twisted to become the core yarn, and the other is in the state of free fiber on the surface of the transfer top roller, and is produced by the airflow boundary layer at the groove of the wrapping roller and the core yarn Wrapped to form wrapped yarn. By adopting the present invention, cotton fibers are used to wrap polyester staple fiber for spinning, and the surface of the fabric will be all cotton fibers, and at the same time, it has the inherent characteristics of polyester fibers, thereby solving the problems of poor wrinkle resistance of pure cotton fabrics and difficult dyeing of polyester-cotton fabrics. , the advantages of the two fibers complement each other, the wearability of the fabric is better, and the production cost is low, which is beneficial to environmental protection.