Abstract: The removal of lint fibers from the cottonseed is facilitated by aqueous pretreatments of the cotton boll with dilute chemical substances. The wet processing of the boll renders the lint amenable to easy removal from the seedcoat in the wet or dry states.

Abstract: Improved levels of abrasion resistance, breaking strength are coupled with high levels of resilience, as measured by durable-press appearance rating and wrinkle recovery angles, by a process in which cotton or cotton-containing fabric is treated with polyfunctional N-methylol reagents, a Br.phi.nsted acidic catalyst or Br.phi.nsted acid-generating catalyst and selected phosphate salts. The fabric is impregnated with these and supplementary agents as desired and cured by conventional methods.

Abstract: Improved levels of abrasion resistance, breaking strength are coupled with high levels of resilience, as measured by durable-press appearance rating and wrinkle recovery angles, by a process in which cotton or cotton-containing fabric is treated with polyfunctional N-methylol reagents, a Bronsted acidic catalyst or Bronsted acid-generating catalyst and selected phosphate salts. The fabric is impregnated with these and supplementary agents as desired and cured by conventional methods.

Abstract: High levels of durable-press appearance rating and conditioned wrinkle recovery angle together with improved abrasion resistance, breaking strength, and tearing strength are the primary textile qualities imparted to cellulosic textile with aqueous solutions containing N-methylolacrylamide-type reagents, a salt of persulfuric acid, and an alkali metal phosphate, which may be supplemented with standard wetting agents and fabric softeners.

Abstract: High levels of durable-press appearance rating and conditioned wrinkle recovery angle together with improved abrasion-resistance, breaking strength, and tearing strength are the primary textile qualities imparted to cellulosic textile with aqueous solutions containing N-methylolacrylamide-type reagents, a salt of persulfuric acid, and an alkali metal phosphate, which may be supplemented with standard wetting agents and fabric softeners.

Abstract: Wrinkle resistance, soil release, improved breaking strength and abrasion, and durable deodorant (bacteriostatic) quality are a plurality of useful properties imparted to cotton by a process with chemicals which include polyfunctional crosslinking compounds, zinc salts of polymerizable acrylic-type acids, and basic persulfates. The fabric is impregnated, heat-fixed, and cured by conventional methods and employing conventional equipment.

Abstract: Network polymers containing phosphorus and nitrogen are deposited and fixed in cellulosic textiles by impregnating the textile with an aqueous solution of an oligomeric vinylphosphonate and a polyethyleneamine or polyethyleneimine and removing water from the impregnated textile to facilitate interaction between the chemical components, thus providing a process and a flame retarding composition for cellulosic textiles.

Abstract: Water-soluble multivalent metal salts of carboxyl-containing vinyl monomers are polymerized in situ in fibrous substrates and fixed therein as network polymeric structures. This finish is useful for development of flame retardance, sanitizing characteristics, and other special performance qualities in fibrous compositions and fabrics.

Abstract: Cellulosic textiles are impregnated with an aqueous solution containing a methylol crosslinking reagent and either a half amide of a 1,2- or 1,3-dicarboxylic acid or a half ammonium, sodium, or potassium salt of a 1,2- or 1,3-dicarboxylic acid. After the impregnated textiles are cured, they have high levels of crosslinking as indicated by high resilience and high levels of acidic groups as indicated by basic dye adsorption and the ability to form new, permanent creases when pressed at high temperatures.

Abstract: Hydroxymethylphosphorus compounds are insolubilized in and reacted with cellulosic textiles by combination with poly(ethyleneureas) and poly(N-methylolethyleneureas) to impart durable flame retardancy to the textile. The poly(ethyleneurea) or poly(N-methylolethyleneurea) may be employed as the sole coreactant for the hydroxymethyl phosphorus compound or as a supplement to urea, N-methylolureas, and the like.

Abstract: Acidic monomers are polymerized in aqueous solutions containing a free radical initiating catalyst and a methylol amide reagent or formaldehyde. The resulting acidic polymers have very high molecular weight as measured by the viscosities of dilute solutions of the acidic and neutralized polymers. The reaction solutions can be used to form tough, insoluble films, and the polymers can serve as effective thickening agents and floculating agents.

Abstract: Durable press properties are imparted to cellulosic fabrics by reacting with either of two new tertiary amino-N-methylol reagents. Autocatalysis was shown by these reagents when applied as the free bases or as hydrochlorides to cotton fabric by conventional methods. Resilience, recurability, improved scorch resistance, and enhanced dye and brightener sorptions are realized.

Abstract: Durable-press properties are imparted to cotton containing fabrics with reduced losses in strength and abrasion resistance by a process which includes (1) application of a solution containing a methylolated urea modified polyethylenimine alone or in combination with other crosslinking agents and a crosslinking catalyst, (2) drying the impregnated fabrics, and (3) curing at elevated temperatures.

Abstract: Creasability properties are imparted to cotton cellulosic and other hydroxy-containing polymeric fabrics and fibers by reacting them with N-methylol derivatives in the presence of phosphorylating agents. The resulting fabrics are both heat creasable and crease resistant.

Abstract: A fibrous material consisting of cellulosic or other natural fiber, synthetic fibers, or blends of various fibers is treated with an aqueous reagent system having a pH above 3.6 that is comprised of one or more carboxyl-containing vinyl monomers, a free-radical initiator, and a suitable base to adjust the pH. Comonomers and water-soluble di- or polyfunctional vinyl monomers may be included. Polymerization is conducted at elevated temperature in an atmosphere in which air may be diluted by steam and/or steam-nitrogen. The polymer is durably fixed to the fibrous substrate and contributes various special performance properties thereto.

Abstract: An ethylenimine prepolymer has been prepared by mixing certain alkyl halides with ethylenimine in molar ratios of about from 44:1 to 27:1, respectively, and allowing the mixture to stand for not more than about 16 hours.

Abstract: Water-soluble finishing systems that contain polymerizable vinyl monomers, reactive-or-coreactive phosphorus-containing organic compounds, and nitrogen-containing compounds are used to treat cellulose fiber and/or synthetic fiber structures to produce products that are flame resistant and have other desirable performance properties.

Abstract: Acidic monomers are polymerized in aqueous solutions containing a free radical initiating catalyst and a methylol amide reagent or formaldehyde. The resulting acidic polymers have very high molecular weight as measured by the viscosities of dilute solutions of the acidic and neutralized polymers. The reaction solutions can be used to form tough, insoluble films, and the polymers can serve as effective thickening agents and floculating agents.

Abstract: durable press properties are imparted to cellulosic fabrics by reacting with either of two new tertiary amino-N-methylol reagents. Autocatalysis was shown by these reagents when applied as the free bases or as hydrochlorides to cotton fabric by conventional methods. Resilience, recurability, improved scorch resistance, and enhanced dye and brightener sorptions are realized.