Abstract: The present invention provides a pre-coating agent capable of, without containing a polyvalent metal salt, preventing or reducing mottling and bleeding to improve the print image quality and preventing or reducing strike-through of an ink composition for inkjet recording during printing using the ink composition for inkjet recording, as well as being capable of preventing or reducing peeling and a decrease in hardness of an overcoat layer in the post-process (formation of the overcoat layer). Provided is a pre-coating agent for forming a precoat layer to receive an ink composition for inkjet recording, the pre-coating agent containing inorganic particles, an amine salt of an organic acid, a resin emulsion, and water, the inorganic particles having a particle size of 1 ?m to 10 ?m, the pre-coating agent being free from a polyvalent metal salt.

Abstract: Provided is a method for manufacturing a laminated rubber hose that includes a first layer and a second layer laminated on an outer surface of the first layer, the first layer containing a thermosetting resin in an amount of 4.5 parts by mass or less relative to 100 parts by mass of a rubber component, the method including laminating the second layer on the outer surface of the first layer with the outer surface of the first layer maintained at a temperature range of 65° C. or more and 105° C. or less.

Abstract: A flush toilet includes a bowl part, a drainage water trap part that is connected to a bottom part thereof, and a water drainage socket that is connected thereto and includes a back side R part that changes a flow channel so that washing water flowing from an upper side is directed to a front side, a front side R part that is provided on a downstream side of the back side R part and changes a flow channel so that washing water flowing from a back side is directed to a lower side, a water storage part that stores a part of washing water on a flow channel from the back side R part to the front side R part, and a throttle part that is provided on a downstream side of the front side R part and decreases a cross-sectional area of a flow channel thereof.

Abstract: Provided is a method for manufacturing a laminated rubber hose that includes a first layer and a second layer laminated on an outer surface of the first layer, the first layer containing a thermosetting resin in an amount of 4.5 parts by mass or less relative to 100 parts by mass of a rubber component, the method including laminating the second layer on the outer surface of the first layer with the outer surface of the first layer maintained at a temperature range of 65° C. or more and 105° C. or less.