Ichikawa Co., Ltd.

Takashi Oouchi

Yasuhiko Kobayashi

Yasuyuki Ogiwara

Shigeyuki Okamoto

Masashi Kato

A felt that further equalizes a pressure state under pressurization by a press so as to smooth the surface of a wet paper web without causing marking on the surface thereof and allow water to be uniformly squeezed out from the wet paper web without crushing the wet paper web is provided by a papermaking press felt wherein a difference between a maximum value and a minimum value of an interval between an upper knuckle portion and an upper knuckle portion, an interval between upper and lower knuckle portions, or an interval between a lower knuckle portion and a lower knuckle portion is arranged to be a value corresponding to 1.0 piece or less of an upper warp yarn in a base fabric.

Press felt for papermaking

A felt () for papermaking according to the present invention has a batt fiber layer comprising batt fibers contained in and integrally combined with a high-polymer elastic material (). The batt fiber layer contained in the high-polymer elastic material () includes hydrophilic 1-methyl-2-pyrrolidone. The felt () for papermaking exhibits a hydrophilic capability as a felt structure from an initial phase of use. The felt has a sustained ability to be compressed and recovered for a long period of time and maintains water squeezing function, a wet paper web smoothing function, and a wet paper web feeding function until the end of the period in which the felt is used.

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Tokyo-to, Japan

Takashi Oouchi