PROBLEM TO BE SOLVED: To develop a nipple pack material for livestock in which (a) film-forming ability is high, (b) the adhesion to the nipple surface is large while having superior elasticity, (c) a mechanical strength capable of sufficiently enduring impact caused after mounting a pack is provided, particularly, even if a water-kneaded material is a material of low viscosity in high water content having superior coatability for the nipple of the livestock, the gelatinized substance superior in the mechanical strength can be obtained, and (d) elasticity is hard to be lost by drying and the maintenance property of the superior mechanical strength is superior.SOLUTION: A livestock nipple pack material is characterized by containing (A) alginate, (B) a gelling reaction agent, and (C) non-reducing sugar. Preferably, it is a gelling material containing a trehalose, and the (A) alginate is a material in which the M/G ratio being a mole fraction of a β-D mannuronic acid to α-L guluronic acid is in a range of 0.4-0.7.COPYRIGHT: (C)2015,JPO&INPIT【課題】(イ)皮膜形成力が高く、(ロ)優れた弾性を有し、乳頭表面に対する密着性が大きく、(ハ)パック装着後に生じる衝撃等に十分耐えうる機械的強度を有していること、特に、水練和物が、家畜の乳頭の被覆性に優れる高含水で低粘度のものであっても、上記機械的強度に優れるゲル化物が得られること、(ニ)乾燥によって弾性が失われ難く、上記優れた機械的強度の維持性に優れる、家畜用乳頭パック材を開発すること。【解決手段】(A)アルギン酸塩、(B)ゲル化反応剤、および(C)非還元糖、好適にはトレハロースを含むゲル化性材料であって、該(A)アルギン酸塩が、α-Lグルロン酸に対するβ-Dマンヌロン酸のモル比率であるM/G比率が0.4~0.7の範囲のものであることを特徴とする家畜用乳頭パック材。【選択図】 なし
