SURFACE TREATING AGENT FOR FIBERS, METHOD FOR TREATING SURFACE OF FIBER, AND SURFACE-TREATED FIBER

• Main Authors: UCHIDA JUNICHI, KAWAKAMI REI, KOYAMA ERINA, YOROZU TAKAYUKI, TSUCHIYA HIROSHI, KARASAWA SATOKI
• Format: Patent
• Language: English; Japanese
• Published: 18.10.2023
• Subjects: FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; LAUNDERING; TEXTILES; 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

To provide a surface treating agent for fibers, which has excellent antibacterial properties and durability, hardly affects the water absorbability of fibers, enables the formation of a coating film that is less likely to degrade fibers, and has high liquid stability.SOLUTION: Provided is a surface treating agent for fibers, which comprises (A) a silane compound that is a hydrolysate and/or a condensation reaction product of a tetraalkoxysilane (A1) and a silane coupling agent (A2), (B) a silver salt and/or a silver complex, (C) an organic acid having at least two carboxyl groups, and (E) water, and which is prepared so as to satisfy the following blend requirements (1) and (2). (1) The molar ratio {(A1+A2)/B} of the total (A1+A2) of the tetraalkoxysilane (A1) and the silane coupling agent (A2) to the silver salt and/or the silver complex (B) is 100 to 500. (2) The molar ratio (C/B) of the carboxyl groups in the organic acid (C) to the silver salt and/or the silver complex (B) is 5 to 25.SELECTED DRAWING: None 【課題】抗菌性および耐久性に優れ、繊維の吸水性に対する影響が少なく、繊維が変質しにくい皮膜を形成可能であり、且つ、高い液安定性を有する繊維用表面処理剤を提供する。【解決手段】テトラアルコキシシラン（Ａ１）とシランカップリング剤（Ａ２）の加水分解物および／または縮合反応物であるシラン化合物（Ａ）と、銀塩および／または銀錯体（Ｂ）と、カルボキシル基を２個以上有する有機酸（Ｃ）と、水（Ｅ）と、を含み、以下の１）および２）の配合条件を満足するように調製した繊維用表面処理剤。１）前記銀塩および／または銀錯体（Ｂ）に対する前記テトラアルコキシシラン（Ａ１）と前記シランカップリング剤（Ａ２）の合計（Ａ１＋Ａ２）のモル比｛（Ａ１＋Ａ２）／Ｂ｝が１００～５００。２）前記銀塩および／または銀錯体（Ｂ）に対する前記有機酸（Ｃ）のカルボキシル基のモル比（Ｃ／Ｂ）が５～２５。【選択図】なし