Permanent press

Partially polymerized resins of urea are used by the textile industry to impart permanent-press properties to fabrics (see also Textiles, finishing). 

Another textile use of acryUc polymers is fabric finishing, to impart a desired hand or feel, or to aid soil release, or for permanent-press features. Copolymers of acrylate esters with acryUc or methacrylic acid serve as thickeners for a variety of textile coating formulations (see Textiles, finishing). 

Miscellaneous. Flame-resistant cross-linked polyethylene can be made with a number of fluoroborates and antimony oxide. This self-extinguishing material may contain the fluoroborates of NH, Na", K", Ca ", Mg ", Sr ", or Ba " in amounts of 4—20% (76). Magnesium fluoroborate cataly2es the epoxy treatment of cotton fabrics for permanent-press finishes (77) (see Textiles). 

Studies on the detergency performance and cost optimization of the LAS/AS/ AES have been published [42,43]. Figure 19 shows the performance optimization on sebum soil on cotton cloth and a cotton/polyester permanent press cloth. 

Amino resins are often used to modify the properties of others materials. These resins are added during the processing of diverse products such as textiles (to impart permanent press... 

The thermoplastic fiber is tough, with relatively high temperature resistance. It can be processed into yams that maintain their properties at elevated environmental temperatures, e.g. in tire reinforcement or for permanent-press fabrics. 

Uses. About 35-40% of the methanol made is converted to formaldehyde. That s not because the embalming business is so good. Formaldehyde is a feedstock for amino and phenolic resins, which are used as adhesives in plywood, and in the automotive and appliance industry to make parts (all the agitators in washing machines used to be made out of phenolic resins). It is used as feedstock for hexamethylene tetramine, used in electronic plastics for pentaerythritol, used for making enamel coatings and for floor polish and inks for butanediol, a chemical intermediate and for acetic acid, which is widely used itself as a feedstock and solvent and warrants its own treatrnent later on. In the textile business, formaldehyde is used to make fire retardants, mildew resistant linens, and permanent press clothing. 

Extensive use of these resins is found in textile and paper-treating and surface coatings. Many types of clothing also can be given a permanent press by an amino resin treatment. Amino resins can be molded and are used for radio cabinets, buttons, switch plate covers, dishware, and Formica. 

One of the larger uses of nylon fibers is tire cord. In apparel applications, which are another major area, permanent press can be achieved by heat treatment. This crease resistance lasts until abrasion, hear, or pressure wears down the molecule orientation. Since it is strong and lightweight, nylon also is used for rope, parachutes, and some undergarments. 

Uses Synthesis of dyes flocculants polymers or copolymers (ployacrylamides) as plastics, adhesives, soil conditioning agents sewage and waste treatment ore processing permanent press fabrics. 

Uses. Manufacture of formaldehyde resins, which are used as adhesives in particle board, plywood, and insulating materials countertops and wall paneling coating to fabrics to impart permanent press characteristics manufacture of rubber, photographic film, leather, cosmetics, embalming fluids, insulation disinfectants and fumigants... 

Fibers—garments, permanent press and wash wear garments, felts, tire cord film—magnetic recording tape, high-grade film... 

Along with nylons, polyester fibers approach and exceed common natural fibers such as cotton and wool in heat stability, wash-and-wear properties, and wrinkle resistance. Blended textiles from polyester, cotton, and wool also can be made to be permanent-press and... 

Polyester Dihydric acid- Strong, resistant to stretching and Permanent press Vycron,... 

Some polymer deterioration reactions occur without loss in molecular weight. These include a wide variety of reactions where free radicals (most typical) or ions are formed and cross-linking or other nonchain session reaction occurs. Cross-linking discourages chain and segmental chain movement. At times this cross-link is desired such as in permanent press fabric and in elastomeric materials. Often the cross-links bring about an increased brittleness beyond that desired. 

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