Back-coatings

A acrylonitrile potassium salts of dispro-portionated resin acids and fatty acid 31 9.5 41 maximum hot-oil and plasticizer resistance asbestos binder, back coatings... 

Textiles Coatings (e.g., back coatings, impregnation, carpets, automotive sealing, furniture ri homes and office buildings, aircraft, subways, tents, trains, and military safety clothing) ... 

There are three primary methods for controlling the flammability of textile products. These include the following incorporation of the fire retardant into the fiber during production, wet treatment of the fabric after production, or back-coating the fabric. 

Back-coating is the major area where bromine-based flame-retardant compounds are used for textiles. This technique is applied primarily in applications such as upholstery and wall coverings. The system would comprise an FR additive with a latex binder, the latter often based on acrylic or ethylene vinylacetate. Use of vinylidene chloride-modified acrylics reduce the amount of tire-retardant additive required. 

Cyclic oligomeric phosphonates with the varying degrees of structural complexity (Structure 5.4) are also available in the market.25 They are widely used as flame-retardant finishes for polyester fabrics. After the phosphonate is applied from an aqueous solution, the fabric is heated to swell and soften the fibers, thus allowing the phosphonate to be absorbed and strongly held. It is also a useful retardant in polyester resins, polyurethanes, polycarbonates, polyamide-6, and in textile back coatings. A bicyclic pentaerythritol phosphate has been more recently introduced into the market for use in thermosets as well as for polyolefins (preferably, in combination with melamine or ammonium polyphosphate)... 

Cotton, viscose, nylon, polypropylene, acrylic, polyester, or wool are generally used in carpets as the face or pile fabric over Neoprene latex. Carpets are usually flame retarded by back-coating with antimony-halogen system. The primary U.K. tests for carpet are BS 6307 198237 and BS 4790 1987,38... 

At Bolton, we also have attempted to introduce volatile and possible vapor phase-active, phosphorus-based FR components in back-coating formulations.60 62 The selected FRs included tributyl phosphate (TBP), a monomeric cyclic phosphate Antiblaze CU (Rhodia Specialties) and the oligomeric phosphate-phosphonate Fyrol 51 (Akzo). When combined with an intumescent char-forming pentaerythritol (PER) derivative (NH1197, Chemtura) and applied as a back-coating on to cotton and polypropylene substrates, significant improvements in overall flame retardancy were observed. 

In a recently published work by Bourbigot et al.,63-65 microencapsulation of ammonium phosphate with PU and polyurea shells has been carried out to make an intrinsic intumescent system compatible in normal PU coating for textiles. Microencapsulation of ammonium phosphate helps in reducing the water solubility of the phosphate and hence, increases the durability of the textile back-coating. 

Horrocks, A.R., Wang, M.Y., Hall, M.E., Sunmonu, E, and Pearson, J.S. 2000. Flame retardant textile back-coatings. Part 2. Effectiveness of phosphorus-containing flame retardants in textile back-coating formulations. Polym. Int., 49 1079-1091. 

Horrocks, A.R., Davies, P., Alderson, A., and Kandola, B.K. 2007. The potential for volatile phosphorus-containing flame retardants in textile back-coatings. J. Fire Sci., 25(6) 523-540. 

Back Coat. A coating applied as a protection over second-surface metallized films. 

Particularities Very effective because dehydration and carbonisation decrease the formation of burnable volatiles Fixation with binder changes textile properties such as handle and drape, preferably for back coating, for example of furnishing fabrics and carpets... 

Furniture fabrics are back-coated with non-slip finishes, often with polymer-based ones. The formulation may include thickeners and flame retardants. Back-coating is mostly achieved by nip-padding or using a doctor (squeegee) or by foam application or spray techniques (for a lower add-on). Another one-side application is rotary printing (screens with regular perforation). 

CNC FLEX H can be added to water at any concentration necessary to provide the required hand to a fabric. CNC FLEX R can also be thickened using the conventional thickeners for back coating purposes. The film can be softened by incorporating a synthetic softener or plasticizer into the thickened product. 

Suitable for a wide variety of nonwoven end-use applications. SUNCRYL CP-75 is also used as a back coating binder for stabilizing corduroy woven fabrics. SUNCRYL CP-75 is a soft, selfcrosslinking vinyl acetate-acrylic copolymer emulsion which forms a soft, flexible film. 

Deca-BDE is the most common of all the commercial BDE flame retardants. The commercial Deca is generally 95% or more of the BDE-209 congener. It is primarily used as a flame retardant in the hard, dense plastics of consumer electronics products and in the latex back coating of flame retardant upholstery textiles. It can be found in many different polymers including polycarbonates, polyesters, polyolefins, ABS, Polyamides, PVC and rubbers. 

Used to keep plastics soft and more flexible. This type of plastic can be used for medical tubing and blood storage bags, wire and cables, carpet back coating, floor tile, and adhesives. It is also used in cosmetics and pesticides. 

MAJOR PRODUCT APPLICATIONS carpet backing, coatings, PU-foam, pultrusion, laminates, composites, conveyor belts, cables, flooring, chipboard, tub and shower stalls, coated fabrics, electrical products, polishing, exterior cladding, tiles, synthetic marble, adliesives, coatings and sealants, sheet molding compounds, toothpaste... 

Electroless deposition, or autocatalytic plating, may be defined as deposition of a metal coating by a controlled chemical reduction, catalyzed by the metal or alloy being deposited. Electroless deposition has been known for a long time. One of its early uses was the deposition of a mirror-like layer of silver on the internal surfaces of Dewar flasks for improved thermal isolation, and as the back coating of mirrors. Later, it was used for deposition of different metals and alloys, and even for induced codeposition of alloys. 

Results are presented of studies of three products for healthcare applications which include anti-microbial finishes or additives in the product. These products are upholstery fabrics coated with a clear coating that includes an anti-microbial additive, a fluid barrier system that involves a 2 mil film laminated to the back of an upholstery fabric that incorporates an anti-microbial additive in its adhesive system, and wallcoverings that include an anti-microbial additive in the back-coating. 

Chemfrofli. [Chem-Tex Labs] Frothing auxiliary and stabilizer for foam finishing, dyeing and latex back coating. 

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