Press felt for papermaking

A press felt for papermaking, comprising:

• at least one batt fiber layer;
• and
• a base fabric;
• wherein:
• the at least one batt fiber layer is integrated into the base fabric;
• the base fabric comprises a wet paper web-side surface and a roll-side surface;
• the base fabric comprises at least one ground warp yarn, at least one ground weft yarn, and at least one additional warp yarn;
• the at least one ground warp yarn and the at least one ground weft yarn comprise monofilament yarns;
• the at least one additional warp yarn comprises a material different from a material forming the at least one ground warp yarn;
• the at least one additional warp yarn is arranged so that, when the base fabric is viewed in cross-section in a warp yarn direction, the at least one additional warp yarn ascends toward the wet paper web-side surface and descends toward the roll-side surface, relative to the at least one ground warp yarn;
• the at least one additional warp yarn comprises a yarn assembly material obtained by assembling a plurality of at least one of staple yarns and filament yarns;
• the at least one ground warp yarn is folded back at an end of the base fabric in the warp yarn direction to form an end connection loop;
• and
• the at least one additional warp yarn is provided entirely on a roll-side of the end connection loop in a vicinity of the end connection loop.

A press felt for papermaking, comprising:

• at least one batt fiber layer;
• and
• a base fabric;
• wherein:
• the at least one batt fiber layer is integrated into the base fabric;
• the base fabric comprises a wet paper web-side surface and a roll-side surface;
• the base fabric comprises at least one ground warp yarn, at least one ground weft yarn, and at least one additional warp yarn;
• the at least one ground warp yarn and the at least one ground weft yarn comprise monofilament yarns;
• the at least one additional warp yarn comprises a material different from a material forming the at least one ground warp yarn;
• the at least one additional warp yarn is arranged so that, when the base fabric is viewed in cross-section in a warp yarn direction, the at least one additional warp yarn ascends toward the wet paper web-side surface and descends toward the roll-side surface, relative to the at least one ground warp yarn;
• the at least one ground warp yarn is folded back at an end of the base fabric in the warp yarn direction to form an end connection loop;
• and
• the at least one additional warp yarn is provided entirely on a wet paper web-side of the end connection loop in a vicinity of the end connection loop.

A press felt for papermaking, comprising:

• at least one batt fiber layer;
• and
• a base fabric;
• wherein:
• the at least one batt fiber layer is integrated into the base fabric;
• the base fabric comprises a wet paper web-side surface and a roll-side surface;
• the base fabric comprises at least one ground warp yarn, at least one ground weft yarn, and at least one additional warp yarn;
• the at least one ground warp yarn and the at least one ground weft yarn comprise monofilament yarns;
• the at least one additional warp yarn comprises a material different from a material forming the at least one ground warp yarn;
• the at least one additional warp yarn is arranged so that, when the base fabric is viewed in cross-section in a warp yarn direction, the at least one additional warp yarn ascends toward the wet paper web-side surface and descends toward the roll-side surface, relative to the at least one ground warp yarn;
• the at least one ground warp yarn is folded back at an end of the base fabric in the warp yarn direction to form an end connection loop;
• and
• the at least one additional warp yarn is provided entirely on a roll-side of the end connection loop in a vicinity of the end connection loop.

A press felt for papermaking, comprising:

• at least one batt fiber layer;
• and
• a base fabric;
• wherein:
• the at least one batt fiber layer is integrated into the base fabric;
• the base fabric comprises a wet paper web-side surface and a roll-side surface;
• the base fabric comprises at least one ground warp yarn, at least one ground weft yarn, and at least one additional warp yarn;
• the at least one ground warp yarn and the at least one ground well yarn comprise monofilament yarns;
• the at least one additional warp yarn comprises a material different from a material forming the at least one ground warp yarn;
• the at least one additional warp yarn is arranged so that, when the base fabric is viewed in cross-section in a warp yarn direction, the at least one additional warp yarn ascends toward the wet paper web-side surface and descends toward the roll-side surface, relative to the at least one ground warp yarn;
• the at least one additional warp yarn comprises a yarn assembly material obtained by assembling a plurality of at least one of staple yarns and filament yarns;
• and
• at least one additional warp yarn is folded back at an end of the base fabric in the warp yarn direction to form an end connection loop.

A press felt for papermaking, comprising:

• at least one batt fiber layer;
• and
• a base fabric;
• wherein:
• the at least one batt fiber layer is integrated into the base fabric;
• the base fabric comprises a wet paper web-side surface and a roll-side surface;
• the base fabric comprises at least one ground warp yarn, at least one ground weft yarn, and at least one additional warp yarn;
• the at least one ground warp yarn and the at least one ground weft yarn comprise monofilament yarns;
• the at least one additional warp yarn comprises a material different from a material forming the at least one ground warp yarn;
• the at least one additional warp yarn is arranged so that, when the base fabric is viewed in cross-section in a warp yarn direction, the at least one additional warp yarn ascends toward the wet paper web-side surface and descends toward the roll-side surface, relative to the at least one ground warp yarn;
• and
• at least one additional warp yarn is folded back at an end of the base fabric in the warp yarn direction to form an end connection loop.

A press felt for papermaking, comprising:

• at least one batt fiber layer;
• and
• a base fabric;
• wherein:
• the at least one batt fiber layer is integrated into the base fabric;
• the base fabric comprises a wet paper web-side surface and a roll-side surface;
• the base fabric comprises at least one ground warp yarn, at least one ground weft yarn, and at least one additional warp yarn;
• the at least one ground warp yarn and the at least one ground weft yarn comprise monofilament yarns;
• the at least one additional warp yarn comprises a material different from a material forming the at least one ground warp yarn;
• the at least one additional warp yarn is arranged so that, when the base fabric is viewed in cross-section in a warp yarn direction, the at least one additional warp yarn ascends toward the wet paper web-side surface and descends toward the roll-side surface, relative to the at least one ground warp yarn;
• the at least one ground warp yarn has a thickness of from 500 to 3,000 dtex;
• the at least one ground weft yarn has a thickness of from 500 to 2,700 dtex;
• and
• the at least one additional warp yarn comprises a monofilament yarn having a thickness of from 200 to 800 dtex.

A press felt for papermaking, comprising:

• at least one batt fiber layer;
• and
• a base fabric;
• wherein:
• the at least one batt fiber layer is integrated into the base fabric;
• the base fabric comprises a wet paper web-side surface and a roll-side surface;
• the base fabric comprises at least one ground warp yarn, at least one ground weft yarn, and at least one additional warp yarn;
• the at least one ground warp yarn and the at least one ground weft yarn comprise monofilament yarns;
• the at least one additional warp yarn comprises a material different from a material forming the at least one ground warp yarn;
• the at least one additional warp yarn is arranged so that, when the base fabric is viewed in cross-section in a warp yarn direction, the at least one additional warp yarn ascends toward the wet paper web-side surface and descends toward the roll-side surface, relative to the at least one ground warp yarn;
• the at least one ground warp yarn has a thickness of from 500 to 3,000 dtex;
• the at least one ground weft yarn has a thickness of from 500 to 2,700 dtex;
• and
• the at least one additional warp yarn comprises a twisted yarn comprising monofilament yarns having a thickness of from 100 to 500 dtex.

A press felt for papermaking, comprising:

• at least one batt fiber layer;
• and
• a base fabric;
• wherein:
• the at least one batt fiber layer is integrated into the base fabric;
• the base fabric comprises a wet paper web-side surface and a roll-side surface;
• the base fabric comprises at least one ground warp yarn, at least one ground weft yarn, and at least one additional warp yarn;
• the at least one ground warp yarn and the at least one ground weft yarn comprise monofilament yarns;
• the at least one additional warp yarn comprises a material different from a material forming the at least one ground warp yarn;
• the at least one additional warp yarn is arranged so that, when the base fabric is viewed in cross-section in a warp yarn direction, the at least one additional warp yarn ascends toward the wet paper web-side surface and descends toward the roll-side surface, relative to the at least one ground warp yarn;
• the at least one ground warp yarn is folded back at an end of the base fabric in the warp yarn direction to form an end connection loop;
• and
• the at least one additional warp yarn is folded back at an end of the base fabric in the warp yarn direction to form an end connection loop.