11 results about "Modacrylic" patented technology

The application relates to the field of fabrics, in particular to a flame-retardant non-fusible non-shrinking fabric as well as a preparation method and application thereof. The flame-retardant heat-insulating fabric contains modacrylic, bamboo lyocell, flame-retardant polyester and polyamide; the addition amount of the modacrylic is 45-60% of the total weight of the flame-retardant heat-insulating fabric. The application can realize good flame-retardant effect by only relying on the proportioning control among several different fiber materials, and does not need to use complex treatment means. In addition to the flame-retardant effect, the fabric in the application also has excellent comfort, durability and dyeing performance.

This invention belongs to the field of dyeing technology, and specifically relates to a flame-retardant needle-punched felt made of oxidized fiber / acrylic chlorofiber and a non-aqueous medium dyeing method with cationic dyes. This method addresses the problems of difficult dyeing and limited color options associated with oxidized fibers. By blending acrylic chlorofiber with oxidized fibers, this invention ensures the flame-retardant properties of the needle-punched felt while allowing it to be dyed with cationic dyes in a non-aqueous medium. This solves the dyeing problem of oxidized fibers while being environmentally friendly and water-saving.

The present application relates to a kind of comfortable air layer three-dimensional structure flame-retardant heat-insulating anti-arcing fabric, including outer layer, middle layer and inner layer;Wherein, the outer layer yarn is high-performance protective yarn, including at least 2 kinds of fiber in modacrylic, flame-retardant viscose, aramid 1414, aramid 1313, polyimide, polyphenylene sulfide fiber composition;The middle layer uses high-temperature resistant monofilament or multifilament;The inner layer is processed using flame-retardant comfort yarn, including at least 2 kinds of fiber in modacrylic, flame-retardant viscose, aramid 1414, aramid 1313, polyimide, polyphenylene sulfide fiber composition.The present application flame-retardant heat-insulating anti-arcing fabric production is efficient and simple, structure is realized conveniently and concisely, three-dimensional structure is complete and clear, fabric hand feeling is soft, comfortable and breathable, with high thermal resistance and high dielectric properties, protect human body from the impact of external heat and arc, effectively protect the life safety of wearing personnel.

A fabric material comprising a blend of nylon, cotton, and modacrylic fibres, the fabric material comprising less than or equal to 10% nylon, between 60% and 65% modacrylic, and between 26% and 32% cotton, wherein a warp yarn comprises the nylon and cotton, and a weft yarn comprises the modacrylic.

One or more embodiments of the present invention relate to a modacrylic fiber comprising a magnesium compound and a disperse dye. The magnesium compound is present inside the modacrylic fiber. The number of magnesium-containing particles located on the surface of the modacrylic fiber and having a particle diameter of 50 nm or greater is 5 / 10 μm2 or less. One or more embodiments of the present invention relate to a method for producing a modacrylic fiber comprising a step for dying a modacrylic fiber containing a magnesium compound in a dyebath containing a disperse dye., the pH of the dyebath being 6.5-10. As a result, provided are: a modacrylic fiber that provides good color development properties and texture and has superior fire resistance; and a method for producing the modacrylic fiber.

The present application relates to a kind of high-strength flame-retardant fabric and its preparation method, the high-strength flame-retardant fabric includes modified aramid fiber, modified flame-retardant cotton fiber, flame-retardant viscose fiber and modacrylic fiber, the modified aramid fiber includes modified meta-aramid fiber and modified para-aramid, according to percentage by weight:modified meta-aramid fiber 50-55%, modified flame-retardant cotton fiber 20-25%, flame-retardant viscose fiber 8-10%, modacrylic fiber 10-15% and para-aramid fiber 3-5%.The present application uses the combination of modified aramid fiber, modified flame-retardant cotton fiber, flame-retardant viscose fiber and modacrylic fiber, can effectively improve the tear strength of meta-aramid fiber by modification, using the combination of the above fiber, can effectively improve the dyeing property and comfort of flame-retardant fabric, the color fastness grade of the high-strength flame-retardant fiber prepared in the present application is 5 levels, the air permeability and moisture absorption have greatly improved, effectively improve the comfort of fabric.

A modacrylic fiber includes a modacrylic polymer, an epoxy group-containing compound, and a compound containing tin and zinc. The modacrylic polymer contains a vinylidene halide as a constitutional unit. The modacrylic fiber contains the epoxy group-containing compound in an amount of 1 to 4 parts by mass with respect to 100 parts by mass of the modacrylic polymer.

A manufacturing process for viscose / polyimide / acrylic chlorofiber / aramid / nylon blended flame-retardant yarn relates to the field of textile production technology. This invention involves processes such as opening, carding, drawing, roving, spinning, and winding. Hydrophilic and moisture-absorbing viscose fiber, skin-friendly and soft acrylic chlorofiber fiber, and strong and abrasion-resistant nylon fiber are blended to form a sliver. Then, polyimide fiber (good flame retardancy, poor spinnability) and aramid fiber (low thermal decomposition, good spinnability) are complementary and made into a sliver. The two different slivers are blended on a drawing frame in three stages, resulting in minimal differences in fiber count and fiber type, good color consistency, and uniform flame retardancy in the blended yarn. The fire-fighting suits made from this viscose / polyimide / acrylic chlorofiber / aramid / nylon blended flame-retardant yarn offer superior comfort compared to existing flame-retardant fabrics on the market, avoiding homogeneous competition and providing the textile industry with a fully functional and comfortable flame-retardant textile product.

The invention relates to the technical field of building materials, in particular to an A2-grade fireproof core material and a preparation method thereof. Glass fibers are purely adopted as reinforcing fibers of an A2-level fireproof core material, and the core material is insufficient in toughness and difficult to roll and form. In order to solve the problems, the A2-grade fireproof core material is provided, hard glass fibers and flexible modacrylic are compounded to form a framework structure of the A2-grade fireproof core material, the glass fibers and the modacrylic can be evenly distributed in the core material under the dispersion effect of water-based emulsion, a three-dimensional reinforced network is formed, balance of the rigidity and the flexibility of the core material is considered, and the fireproof performance of the A2-grade fireproof core material is improved. And due to the addition of the flexible modacrylic, the processing requirements of high toughness and rolling of the core material are met. The core material skeleton structure cooperates with the activated slag, the quartz sand and other inorganic mineral powder, so that the A2-level flame retardance of the obtained fireproof core material is effectively ensured.

A modacrylic fiber includes a modacrylic polymer, a halogen-containing compound other than the modacrylic polymer, and a compound containing tin and zinc. The halogen-containing compound contains halogen in an amount of 50 mass % or more. The modacrylic fiber contains halogen in an amount of 40 mass % or more with respect to a total of 100 mass % of the modacrylic polymer and the halogen-containing compound. A molar ratio (halogen / tin) of halogen element derived from the modacrylic polymer and the halogen-containing compound to tin element derived from the compound containing tin and zinc is 32 or more.

The invention discloses a high-flame-retardancy modacrylic composite fiber and a preparation method thereof, and belongs to the technical field of high polymer materials. The composite fiber is prepared from the following components in parts by weight: 80-95 parts of modacrylic, 5-15 parts of a modified DOPO (9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide) derivative, 3-10 parts of a phosphate layered double hydroxide, 1-5 parts of a dispersing agent, 0.5-3 parts of a heat stabilizer, 2-8 parts of a plasticizer and 300-500 parts of a solvent. The preparation method comprises the following steps: synthesizing a modified DOPO derivative; preparing a phosphating layered double hydroxide; preparing a spinning solution and performing electrostatic spinning; and carrying out heat treatment on the nascent fiber felt, so that the DOPO derivative is grafted to the modacrylic molecular chain through a covalent bond. Permanent fixation of flame-retardant components is achieved through chemical grafting, the problem of migration of the flame-retardant components is solved, and by means of the gas-solid phase synergistic flame-retardant effect of the DOPO derivative and the phosphating layered double hydroxide, the fiber has high flame retardance, excellent durability and good mechanical performance.