摘要:
Improved dyeing processes for yarn and fabric materials are described. Dye pattern definition on a textile material is enhanced by treating the fabric or the fibers from which it is made with a quaternary ammonium compound and by including in the dye composition a gum which will react with the quaternary ammonium compound to form a viscous gel. The gel minimizes migration of the dye prior to fixation of the dye, and therefore pattern definition is improved. Similar improvements can be obtained when space dyeing yarn that comprises fibers that have been so treated.
摘要:
An aqueous, coatable, thermally condensable composition is disclosed. The coating is based on dispersions of vinyl acetate polymers in water. Uniquely, the coating can be advantageously used for both nylon and polyester yarns. The coated yarns exhibit performance equivalent to or better than coated yarns based on traditional compositions.
摘要:
Making suitable nonwoven webs requires good adhesion between the binder and the absorbent material. The present invention relates to a nonwoven web having improved adhesion based on tackifiers present in the binder. Optionally, the binder with tackifier may also contain an adhesion promoter, usually grafted polyolefins, and an enhancement agent, usually inactive inorganic compounds in powder form. The web comprises from about 5 to about 25% by weight binder fiber and from about 75 to 95% by weight absorbent. The absorbent may be a natural absorbent or a super absorbent polymer or a combination of these. The binder fiber contains less than about 40% by weight tackifier. Tackifier is selected from the class of rosin, rosin esters, terpene based, piperylene based, and hydrocarbon based compounds.
摘要:
Aqueous paper size dispersions comprising: a) at least one paper sizing compound, and b) a water-soluble dispersant containing at least two hydrophilic groups and at least one hydrophobic group. Processes for sizing paper utilizing the aqueous paper size dispersions, and paper made by the processes.
摘要:
Embodiments of the present invention relate to sizing compositions, glass fibers, and fabrics. For example, some embodiments provide a composition that includes: (a) a cooked starch comprising fluid-swollen starch particles and (b) a film forming polymer. The film forming polymer, in some embodiments, has a glass transition temperature from about −50° C. to about 150° C. The fluid-swollen starch particles, in some embodiments, exhibit a granular swelling power (GSP) from about 1 to about 20.
摘要:
The present invention comprises a binder fiber containing a metallocene catalyzed polyethylene (mPE) and an adhesion promoters. A web comprising the binder fiber and absorbent is also contemplated. The present invention also comprises a binder fiber containing polyolefin, an adhesion promoter, and an enhancement agent. The polyolefin may be polypropylene, high density polyethylene, medium density polyethylene, low density polyethylene, linear low density polyethylene, or ultra low density polyethylene, manufactured with either Ziegler-Natta or metallocene catalysts. A web comprising this binder fiber and absorbent is also contemplated. The adhesion promoter may be maleic anhydride grafted polyolefins, or ethylene-acrylic copolymers, or a combination of these. The enhancement agent may be one or more of titanium dioxide, talc, silica, alum, calcium carbonate, calcium oxide, and magnesium oxide.
摘要:
A carpet having pile which is made up of fibers adhered to each other at points along their lengths with a chemically activated adhesive, as well as a process for treating a carpet, are disclosed. The carpet of the present invention is characterized by improved initial appearance and superior wear resistance when compared to prior art carpet constructions.