Furniture nitrocellulose

Nitrocellulose based lacquers often contain short or medium oil alkyds to improve flexibiUty and adhesion. The most commonly used are short oil non drying alkyds. Amino resins or urethane resins with residual isocyanate functional groups may be added to cross-link the coating film for improved solvent and chemical resistance. The principal appHcations are furniture coatings, top lacquer for printed paper, and automotive refinishing primers. 

Many alternatives to nitrocellulose lacquers for top coats have been investigated and some are used commercially. Especially for lower cost furniture exposed to hard use such as motel and institutional furniture, alkyd—urea top coats are used. Urea—formaldehyde resins, in contrast to... 

Coating materials may be based on short or medium-oil alkyds (e.g. primers for door and window frames) nitrocellulose or thermoplastic acrylics (e.g. lacquers for paper or furniture finishes) amino resin-alkyd coatings, with or without nitrocellulose inclusions, but with a strong acid catalyst to promote low temperature cure (furniture finishes) two-pack polyurethanes (furniture, flat boards) unsaturated polyester resins in styrene with free-radical cure initiated by peroxides (furniture) or unsaturated acrylic oligomers and monomers cured by u.v. radiation or electron beams (coatings for record sleeves paperback covers, knock-down furniture or flush interior doors). 

Nitrocellulose-based lacquers often contain short or medium oil alkyds to improve flexibility and adhesion. The principal applications are furniture coalings, top lacquer for printed paper, and automotive refinishing primers. 

TBC is used as a plasticizer that does not support fungal growth in cellulosic and vinyl resins (especially PVC), polyactic acid resins (as a biodegradable component), and furniture coatings. Also used as a solvent for nitrocellulose and lacquers intended for food contact applications. Additional applications include a defoaming agent in proteinaceous solutions. 

Resins, types of polymers, are the thickening and hardening agents that, without pigments, serve as colorless nail protectors resembling clear furniture lacquer. These agents include nitrocellulose (collodion) and different acrylate and polyester/polyurethane copolymers. Copolymers include chemicals such as methacrylic acid, isobutyl methacrylate, toluenesulfona-mide formaldehyde resin, phthallic anhydride/trimellitic anhydride/glycol copolymer, tosylamide/formaldehyde resin, and dimethicone copolyol. 

Butoxyethanol and, to a lesser extent, 2-butoxyethanol acetate are found in a wide variety of industrial and consumer products. For 2-butoxyethanol, the exposure scenario of most concern to the general public is inhalation or dennal absorption while using household cleaners, metal cleaners, spray lacquers, quick-dry lacquers, enamels, varnishes, varnish removers, and latex paints. 2-Butoxyethanol acetate is used in nitrocellulose lacquer, epoxy and acrylic enamels, latex coatings, and some ink and spot remover formulations. Individuals employed in industries that make or use 2-butoxyethanol or 2-butoxyethanol acetate (e.g., hospitals and medical facilities, silk screen shops, furniture finishers, print shops, paint manufacture) are probably exposed to the highest concentrations of atmospheric 2-butoxyethanol or 2-butoxyethanol acetate. In the general population, people residing around certain chemical... 

Table VII, Solvent Systems for Nitrocellulose Furniture Lacquer...

The medium-viscosity nitrocelluloses have the broadest application range, a major field being furniture lacquers. They are also employed in paper and metal coatings as well as in reaction lacquers (e.g., acid-catalyzed lacquers and polyurethane paints). 

Aqueous nitrocellulose lacquers that contain small amounts of solvent are used in the form of emulsions or dispersions to coat leather [2.4] and decorative foils. Solvent-free dispersions are cured by UV radiation after evaporation of the water and are used to coat furniture, profiled boards, and paper. 

Short oil alkyd resins can also be combined with nitrocellulose. They are readily soluble in typical nitrocellulose solvents (esters and ketones). Special short oil alkyd resins that are soluble in lower alcohols are often processed into furniture lacquers and acid-curing paints, and are also used in paper (spray) coatings and in flexoprint-... 

For many years, nitrocellulose coating systems were preferred for indoor furniture and other wood parts. These systems are still used on low-price furniture, but are... 

In other industrial application sectors there is an increasing tendency to employ low-solvent paints. In furniture production, for example, waterborne, UV-curing paints are superceding high-solvent nitrocellulose lacquers. 

Chem. Descrip. Benzophenone 6 CAS 131-54-4 EINECS/ELINCS 205-027-3 Uses UV stabilizer for polyester film and rubber, PU coatings, furniture stains and varnishes, nitrocellulose lacquers, fluorescent pigments, photographic emulsions, dyed polyester fabrics, and acrylic adhesives Properties Pale yel. powd. insol. in water sol. < 1% In methanol, 5% in ethyl acetate, 5% in MEK, and 5% in toluene mass dens. 1.34 g/cm m.p. 130-132 C Maxgard 400 [Lycus Ltd]... 

Chem. Descrip. Butylated melamine-formaldehyde resin in n-butanol Uses Crosslinking agent for low temp, or ambient acid cured systems for kitchen cabinet and wood furniture finishes, metal coatings modifying resin for fast curing nitrocellulose coatings Properties APHA 30 max. color dens. 8.55-8.85 Ib/gal vise. (Gardner-Holdt) Y-Zj flash pt. (PMCC) 42 C 64.5-68.5% solids Resimene 7512 [Solutia]... 

Nitrocellulose (high nitrogen grades) Car re-finishing Clear coating for wooden furniture Ketones Esters Glycol ethers Aromatic and aliphatic hydrocarbons Mainly low and medium boiling solvents. Alcohols act as latent solvents. 

They may also be combined with urea resin for acid curing wood varnishes and mixed with nitrocellulose for inexpensive, easily applied furniture lacquers and refinishes. 

The first 50 years of the twentieth century were the decades of discovery. Significant changes were made in the vehicles, which are the liquid portions of the coatings composed of binder and thinner. Since the 1900s and the introduction of phenolic synthetic resin vehicles, coatings have been designed to increase production and meet performance requirements at lower costs. These developments were highlighted by the introduction of nitrocellulose lacquers for the automotive and furniture industries followed by the alkyds, epoxies, vinyls, polyesters, acrylics, and a host of other resins and finally the polyurethanes. 

Uses. Although no longer used extensively by the automotive industry, nitrocellulose lacquers are still used by the furniture industry because of their fast-drying and hand-rubbing properties. Cellulose acetate butyrate has been used for coating metal in numerous applications. In 1959 one of the first conveyorized powder coating lines in the United States coated distribution transformer lids and hand-hole covers with a cellulose acetate butyrate powder coating. 

Wood furniture coatings usually contain urethane/isocyanates in addition to UF, volatile plasticisers, residual solvents and free monomers from incomplete polymerisation of the coating. Nitrocellulose lacquer, acrylic, cellulose acetate butyrate and polynrethane (with plasticisers like epoxy, di-bntyl phthalate, butyl benzyl phthalate and isopropyl myristate) are the coatings commonly nsed on clear finished wood furniture. In these, the amonnts and... 

Isobutanol is used as a chemical intermediate in the preparation of isobutyl esters, isobutyl amines, and in isobutylated urea or melamine-coating resins. Isobutanol is used as a solvent in coating formulations with or without the cosolvent n-butanol. Nitrocellulose lacquers use isobutanol as a latent solvent, while the alcohol is an active solvent in automotive and furniture finishes, lacquers thinners, and hot spray lacquers. 

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