FIBER SIZING AGENT

• Main Authors: UEDA Ryoji, SHIREN Minari, MIZUKAMI Shinya
• Format: Patent
• Language: English; French; Japanese
• Published: 15.02.2024
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; COMPOSITIONS BASED THEREON; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; LAUNDERING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MINERAL OR SLAG WOOL; ORGANIC MACROMOLECULAR COMPOUNDS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS

Provided is a technology that realizes sizing performance and storage stability for a polyurethane resin aqueous dispersion used for a fiber sizing agent. This fiber sizing agent includes aqueous dispersion of a polyurethane resin. The polyurethane resin includes, as constituting components, a polyol (a) component that does not have either a sulfonic acid group or a sulphonic acid salt group; a polyisocyanate (b) component; and a compound (c) component that has at least one of a sulfonic acid group and a sulfonic acid salt group, and that has an active hydrogen group. The polyol (a) component includes polyester polyol (a1) and polyether polyol (a2). The content of the polyether polyol (a2) component is 10-30 parts by mass with respect to the combined amount, which is 100 parts by mass, of the polyol (a) component, the polyisocyanate (b) component, and the compound (c) component. L'invention concerne une technologie qui permet une performance d'encollage et une stabilité de stockage pour une dispersion aqueuse de résine de polyuréthane utilisée pour un agent d'encollage de fibre. Cet agent d'encollage de fibre inclut une dispersion aqueuse d'une résine de polyuréthane. La résine de polyuréthane inclut, en tant que composants constitutifs, un composant polyol (a) qui n'a pas soit un groupe acide sulfonique, soit un groupe sel d'acide sulfonique ; un composant polyisocyanate (b) ; et un composant composé (c) qui a au moins l'un d'un groupe acide sulfonique et d'un groupe sel d'acide sulfonique, et qui a un groupe hydrogène actif. Le composant polyol (a) inclut un polyester-polyol (a1) et un polyéther-polyol (a2). La teneur du composant polyéther-polyol (a2) est de 10 à 30 parties en masse par rapport à la quantité combinée, qui est de 100 parties en masse, du composant polyol (a), du composant polyisocyanate (b) et du composant composé (c). 集束性と、繊維集束剤に用いるポリウレタン樹脂水分散体の貯蔵安定性とを両立させる技術を提供する。 繊維集束剤は、ポリウレタン樹脂の水分散体を含む繊維集束剤であって、前記ポリウレタン樹脂は、構成成分として、スルホン酸基とスルホン酸塩基とのいずれも有しないポリオール（ａ）成分と、ポリイソシアネート（ｂ）成分と、スルホン酸基とスルホン酸塩基との少なくとも一方を有し、かつ、活性水素基を有する化合物（ｃ）成分と、を備え、前記ポリオール（ａ）成分は、ポリエステルポリオール（ａ１）と、ポリエーテルポリオール（ａ２）と、を含み、前記ポリエーテルポリオール（ａ２）の成分は、前記ポリオール（ａ）成分と前記ポリイソシアネート（ｂ）成分と前記化合物（ｃ）成分との合計量１００質量部に対して、１０質量部以上３０質量部以下である。