摘要:
There is provided a process for chemically pretreating reclaimed cellulose fibres to be used in the production of moulded bodies from regenerated cellulose, wherein the pretreatment includes one stage, in which stage acid metal removal and acid oxidative bleaching are carried out together. Advantages include that the propensity of the regenerated cellulose to clog when flowing in a tube and through a nozzle is reduced. This is believed to be an effect of an efficient metal removal. The need for additional bleaching steps and/or metal removing steps is reduced or even eliminated. A one-stage method is more efficient, faster and less costly compared to a multi-stage method according to the prior art. From an environmental perspective, acidic metal removal is preferred over removal by chelating agents such as EDTA.
摘要:
A process to clean carbon fiber fabric of a pre-applied sizing, while simultaneously activating or preparing the fabric to receive a polymer resin is described. The cleaning process and chemistry combines an enzymatic cleaning solution with an oxidizing agent. The enzymatic solution strips the fibers of lubricants, surfactants, and other chemicals of the sizing which might otherwise interfere with interfacial properties and bonding of the fabric to the matrix resin. The inclusion of an oxidizing agent concurrently adds hydroxyl groups to the surface of the fabric allowing for the grafting of organic copolymers to the surface of the fabric, the copolymer being chosen based upon the desired polymer resin. This process provides a customized finished carbon fiber fabric to bond to a specific polymer resin, without interference resulting from an inadequate fiber sizing chemistry. In this way, a customizable finished fabric may be manufactured.
摘要:
A method for treating a fabric for protection from ultraviolet radiation is disclosed which comprises the steps of dispensing a suspension of zinc oxide particles treated with an acid polymer into a washing machine during a time in which a fabric is being washed in the washing machine and mixing the treated zinc oxide particles and the fabric for the treated zinc oxide particles to bind to the fabric. Other methods for treating a fabric for protection from ultraviolet radiation are also disclosed.
摘要:
The present invention provides a hydrophilized cellulose fiber producing method, comprising oxidizing cellulose fibers in a reaction solution containing a N-oxyl compound, an oxidizing agent, and a co-catalyst and oxidizing other cellulose fibers using the reaction solution again. The present invention relates to a hydrophilized cellulose fiber producing method, comprising the steps of: (1a) oxidizing cellulose fibers in a reaction solution containing a N-oxyl compound, an oxidizing agent, and sodium sulfate to provide oxidized cellulose fibers; and (1b) separating the obtained oxidized cellulose fibers from the reaction solution, and then adding other additional cellulose fibers and oxidizing agent to the reaction solution to oxidize the cellulose fibers again to provide oxidized cellulose fibers.
摘要:
This Invention Patent application consists of a fabric to be used in textile applications, which makes those items more comfortable and increases their bactericidal capacity, both in the number of types that it fights, and in the time that this capacity is effective, using a mixture of fibres and performing a series of treatments prior to the final manufacture of the textile goods that reinforce the properties of the fabric.
摘要:
This invention relates to a method for fireproofing textiles based on a composition having two components comprising: a component A comprising at least one phosphorous compound; and a component B comprising urea and at least one pH buffer, optionally with an oxidising agent. Said method for fireproofing textiles includes the steps of immersing said textiles in said composition, and of heating, oxidising and then washing said textiles, which then have excellent human-ecological, comfort, and durable fireproofing properties.
摘要:
The present invention teaches a flame retardation composition. The composition comprises: Ammonium Polyphosphate, Sodium Borate, Boric Acid, 3% Hydrogen Peroxide Solution used as Biocide, and Distilled Water. A homogeneous flame retarding composition solution is processed by mixing the referenced composition compounds in distilled water. The flame retarding composition solution is coated on to be protected substrate surfaces against flame retardation. The materials coated with flame retarding composition solution fully satisfy flammability test under the Federal Aviation Regulation (FAR) 25.853(a) vertical burn test, and Federal Aviation Regulation (FAR) 25.853(d) heat release test. The utility of the present invention extends to numerous commercial and non-commercial applications.
摘要:
This invention provides a method for hydrophilic cellulose fibers capable of inhibiting decrease in the degree of polymerization and whiteness degree of oxidized cellulose fibers in oxidized cellulose in which a carbon at position 6 of each glucose unit in the cellulose fiber starting material is oxidized to a carboxyl group, the method comprising (A) the step of performing dehalogenation together with reduction, the dehalogenation comprising mixing a dehalogenation agent, a reducing agent, and oxidized cellulose fibers, and removing halogens remaining in the oxidized cellulose fibers, and the reduction comprising reducing a ketone group at position 2 and/or position 3 of each glucose unit in the oxidized cellulose fibers.
摘要:
A method for treating a fabric for protection from ultraviolet radiation is disclosed which comprises the steps of dispensing a suspension of zinc oxide particles treated with an acid polymer into a washing machine during a time in which a fabric is being washed in the washing machine and mixing the treated zinc oxide particles and the fabric for the treated zinc oxide particles to bind to the fabric. Other methods for treating a fabric for protection from ultraviolet radiation are also disclosed.
摘要:
Durable stretch fabrics are made and processed from one or more crosslinked, heat-resistant olefin elastic fibers, e.g., a substantially linear, homogeneously branched ethylene polymer. The fabrics can be made by any process, e.g., weaving, knitting, etc., and from any combination of crosslinked, heat-resistant olefin elastic and inelastic (“hard”) fibers, e.g., cotton and wool. These fabrics exhibit excellent chemical, e.g., chlorine, resistance and durability, e.g., they retain their shape and feel (“hand”) over repeated exposure to processing conditions, e.g., stone-washing, dye-stripping, PET-dyeing and the like, and service conditions, e.g., washing, drying, etc.