Abstract: A water repellent composition containing: (A) water repellent particles in which the number of surface alkyl groups on the water repellent particles is 600×1018-50,000×1018 per 1 g of water repellent particles; (B) a water-repellent resin which is a polymer having a long-chain C7-40 hydrocarbon group; and (C) a liquid medium. The water-repellent particles preferably have an average primary particle size of 1-100 nm. Also disclosed is a method for treating a fiber using the water repellent composition, a method for producing a treated textile product, a film formed from the water repellent composition, and a textile product treated with a treatment liquid containing the water-repellent composition.

Abstract: Provided is a packaging bag which can prevent a colorant contained in a multilayer film from staining a packaged object, as well as has high mechanical strengths such as high impact resistance and high pinhole resistance. In a packaging bag formed by forming a multifold film into a bag shape, the multifold film being formed by stacking a plurality of multilayer films, a colorant is contained in a layer of the multilayer films, the layer containing the colorant being not in contact with an object to be packaged. For example, the multifold film comprises two stacked multilayer film formed by flattening a tubular multilayer film. For example, the colorant is an inorganic pigment.

Abstract: Provided is a packaging bag which can prevent the entry of water between a handle and a body, as well as can maintain proper degrees of easy-opening properties and bag-break strength. A packaging bag includes an easy-peel seal. The seal includes first regions in which multiple belt-shaped seals are spaced from each other in the width direction and second regions in which a single belt-shaped seal is disposed. The first regions and second regions are alternately disposed adjacent to each other in the length direction of the belt-shaped seals. The single belt-shaped seal in each second region has a wide width so that the multiple belt-shaped seals in the adjacent first regions can be connected to the single belt-shaped seal.

Abstract: Provided is a packaging bag which can prevent a colorant contained in a multilayer film from staining a packaged object, as well as has high mechanical strengths such as high impact resistance and high pinhole resistance. In a packaging bag formed by forming a multifold film into a bag shape, the multifold film being formed by stacking a plurality of multilayer films, a colorant is contained in a layer of the multilayer films, the layer containing the colorant being not in contact with an object to be packaged. For example, the multifold film includes two stacked multilayer film formed by flattening a tubular multilayer film. For example, the colorant can be an inorganic pigment.

Abstract: Provided is a packaging bag which can prevent the entry of water between a handle and a body, as well as can maintain proper degrees of easy-opening properties and bag-break strength. A packaging bag includes an easy-peel seal. The seal includes first regions in which multiple belt-shaped seals are spaced from each other in the width direction and second regions in which a single belt-shaped seal is disposed. The first regions and second regions are alternately disposed adjacent to each other in the length direction of the belt-shaped seals. The single belt-shaped seal in each second region has a wide width so that the multiple belt-shaped seals in the adjacent first regions can be connected to the single belt-shaped seal.