The invention relates to the field involving the softening or lubricating of natural, synthetic or mixed textile fibres, as well as keratin fibres. The invention provides a softening composition, the rheology of which is controlled by means of a particular thickening agent. The invention also relates to the thickening agent, which is made from multiple isocyanate compounds.

The purpose of the present invention is to provide: an elastic fiber treating agent that can improve the morphological characteristics of elastic fibers; and elastic fibers that have the elastic fiber treating agent adhered thereto. This elastic fiber treating agent is characterized by containing: at least one smoothing agent (A) selected from mineral oil, silicone oil, and ester oil; and an unsaturated fatty acid metal salt (B).

Films, fibers, filaments, yarns and textiles including thermoplastic elastomeric compositions are described, as are methods of making the films, fibers, filaments, yarns and textiles. These films, fibers, filaments, yarns and textiles can be used to make articles of apparel, footwear, and sporting equipment. When thermoformed, the thermoplastic elastomeric compositions can impart abrasion resistance, traction, and other advantageous properties to the articles. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

A fiber treatment agent can provide artificial hair fiber with smooth and dry texture. A fiber treatment agent includes water; silicone oil; and ionic liquid. Content of the sum of the silicone oil and the ionic liquid with respect to the water is 2 parts by weight or more and less than 10 parts by weight. Content of the silicone oil with respect to the weight of the water is more than 0.5 parts by weight and 9.5 parts by weight or less. Content of the ionic liquid with respect to the weight of the water is 0.2 parts by weight or more and 5.0 parts by weight or less.

Provided are a sizing agent coated carbon fiber bundle that has excellent mechanical characteristics when used as a carbon fiber reinforced composite material, as well as excellent ease of handling; a method for manufacturing the same; and a prepreg and carbon fiber reinforced composite material of excellent mechanical characteristics, employing the fiber bundle. The carbon fiber bundle is coated with a sizing agent that includes a polyether aliphatic epoxy compound having two or more epoxy groups per molecule and/or a polyol aliphatic epoxy compound or a non-water-soluble compound having a glass transition temperature of −100-50° C., wherein the sizing agent coated carbon fiber bundle is characterized in that the flatness ratio (width/thickness) of the carbon fiber bundle cross section is 10-150, and a two edge part/center part sizing agent deposition ratio, obtained by dividing the carbon fiber bundle in the width direction along the fiber direction into three equal parts by mass, and computing the ratio from the ratio of the mass of the sizing agent to the mass of the carbon fiber bundle in the center part and in both end parts, is 1.05-1.5.

An oil containing an oil mist suppressant is provided herein. The oil can be a fiber treatment oil, spinning oil, or textile treatment oil. The oil mist suppressant suppresses the formation of oil mist from the oil during treatment using the oil. In general, the oil mist suppressant will not inhibit the purpose and effects of the oil treatment. A method of reducing oil mist using the oil mist suppressant is also provided herein. The oil mist suppressant is constituted by a silicone fluid composition. The silicone fluid composition is homogeneously miscible with a dimethylpolysiloxane oil having a kinematic viscosity of 10.0 mm.sup.2/s at 25° C. The silicone fluid composition also has the property of increasing the maximum lamellar length of the dimethylpolysiloxane oil by at least 5% when 1.0% by mass of the silicone fluid composition is added thereto.

The present invention relates to a bundled yarn, comprising plural fibers integrated by a sizing agent, wherein the sizing agent is a modified polyvinyl alcohol comprising a structural unit (X) derived from an unsaturated carboxylic acid or derivative thereof in an amount of 0.1 to 10% by mole, taking the amount of all monomer units as 100% by mole, which modified polyvinyl alcohol has a saponification degree of 85% by mole or higher.

The present invention relates to a surfactant composition capable of making a dimethylsiloxane highly remain the solid surface, which is a surfactant composition containing an anionic surfactant (A), a cationic surfactant (B), and a dimethylpolysiloxane (C), wherein the following molar ratio R.sub.A is 0.10 to 0.90; and the following molar ratio R.sub.b is 0.4 or more: R.sub.A: a molar ratio {(A)/[(A)+(B)]} of the amount of the anionic surfactant (A) to the total amount of the anionic surfactant (A) and the cationic surfactant (B) R.sub.b: a molar ratio {[(a1)+(b1)]/[(A)+(B)]} of the total amount of a branched-type anionic surfactant (a1) and a branched-type cationic surfactant (b1) to the total amount of the anionic surfactant (A) and the cationic surfactant (B).

A method includes charging PET bottle flakes having particular characteristics as a raw material into a crystallizer to generate a crystalline version thereof, drying the crystalline version with dehumidified air at a temperature of 160-180° C. and with a dew point of −40° C. to bring down a moisture level thereof below 100 ppm, melting the dried crystalline version through an extruder configured to have a temperature therein maintained at 285-295° C., and feeding the melted raw material into a spin beam. The method also includes generating, through a spinneret, a number of filaments based on extruding, through the spinneret, the melted raw material fed into the spin beam, forming a yarn based on combining the number of filaments, and winding the formed yarn to generate a spool of Partially Oriented Yarn (POY) configured to be utilized as another raw material to generate a Draw Texturized Yarn (DTY).

Use of a sizing agent having a heat weight loss B-1 of 65% or more as determined by a specific measurement method, or a sizing agent containing a surfactant and a compound represented by formula (1):

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