Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Clark M. Welch"'
Publikováno v:
Textile Research Journal. 64:501-507
We examined catalyrtic activities of mono- or disodium salts of fumaric, maleic, and itaconic acids for the reaction of 1,2,3,4-butanetetracarboxylic acid ( BTCA ) with cotton cellulose. Evidence for esterification and crosslinking of cellulose with
Publikováno v:
Textile Research Journal. 64:247-255
Pore structures of cotton crosslinked with butanetetracarboxylic acid (BTCA) and different catalysts were assessed. The catalysts included NaH2PO2.H 2O, Na- H2PO 3.2.5H2O, Na2HPO3.5H2O, NaH2PO4.H2O, Na2HPO4, Na4P2O7, and Na2CO3. Treatments were appli
Publikováno v:
Textile Research Journal. 63:650-657
In place of the phosphorus-containing catalysts normally required in 1,2,3,4-bu tanetetracarboxylic acid (BTCA) treatment of cotton, aromatic N-heterocyclic com pounds were used to accelerate formaldehyde-free durable press finishing. Imidazole and i
Autor:
Clark M. Welch, G. Forthright Danna
Publikováno v:
Textile Research Journal. 52:149-157
Glyoxal was found to impart a high degree of wrinkle resistance and smooth drying qualities to all-cotton printcloth. Certain aluminum salts were effective catalysts, the least fabric discoloration being produced with aluminum sulfate. Addition of et
Autor:
Clark M. Welch
Publikováno v:
Textile Research Journal. 53:181-186
The combination of aluminum sulfate and an α-hydroxy acid has proven highly effective in catalyzing the crosslinking of cotton cellulose by glyoxal under mild curing conditions. The durable press appearance ratings were increased by the presence of
Autor:
Clark M. Welch, Julie G. Peters
Publikováno v:
Textile Research Journal. 57:351-356
Improved catalyst systems have been developed for use in the glyoxal-glycol process under a wide variety of curing conditions. The mild cure process, now conducted with polyethylene as fabric softener in place of the reactive hydrophobic silicones fo
Publikováno v:
Textile Research Journal. 44:904-914
Slack mercerization of cotton, with restretching to various degrees in the mercerizing alkali, was compared to merceriza tion at constant, preselected lengths as a method of yarn pretreatment. Fabrics were woven of these pretreated 2-ply yams and wer
Autor:
Clark M. Welch, Tyrone L. Vigo
Publikováno v:
Carbohydrate Research. 32:331-338
Native cotton yarn reacts rapidly with phosphoryl chloride in N,N-dimethylformamide to produce highly chlorinated cellulose (degree of substitution of 0.5 or greater), phosphorylated cellulose, and cellulose formate. The ratio of chlorination to phos
Autor:
Clark M. Welch
Publikováno v:
Textile Research Journal. 52:529-537
A study is presented of the use of the water-soluble azo compound 4,4'-azobis(4- cyanovaleric acid) and its salts as nonoxidative free radical polymerization initiators for durable press finishing of cotton with N-methylolacrylamide. The azo initiato
Publikováno v:
Carbohydrate Research. 44:45-52
Deoxy(thiocyanato)celluloses were prepared by treating chlorodeoxycellulose fabrics with potassium thiocyanate in N,N -dimethylformamide. Under optimal reaction-conditions, more than 80% of the chlorine atoms in the cellulose derivative were replaced