KR970704934A - Papermaking fabric - Google Patents

Abstract

A papermakers fabric (10) is woven from machine direction yarns (11, 19, 20) and one or more layers of cross machine direction yarns (12-18). The cross machine direction yarns (12-18) in at least one of the layers comprise relatively large (12, 13, 16, 17) and small (14, 15, 18) yarns. The machine and cross machine direction yarns (11, 19, 20) are arranged such that the machine direction yarns (11, 19, 20) define outer floats or knuckles at the surfaces of the fabric and inner floats or knuckles in the body of the fabric around small cross machine direction yarns (14, 15, 18) provided in one of the cross machine direction yarn layers. The parts of the machine direction yarns provided at one surface defining the inner floats or knuckles do not extend to the plane of the obverse surface of the fabric.

Description

Papermaking fabric

Since this is a trivial issue, I did not include the contents of the text.

Figure 1 is a side view of a fabric according to the invention.

Claims (16)

Machine direction yarns and at least one machine direction yarn layer, wherein the machine direction yarns in at least one layer are composed of large and small yarns and the machine direction yarns form outer floats or knuckles on one side of the fabric A machine direction yarn and a machine transverse direction yarn arranged to form an inner float or knuckle below the one side of the small machine transverse yarn in one of the machine direction yarn layers and forming an inner float or knuckle below the one side Wherein the portion of the direction yarn does not extend to the surface of the opposite side of the fabric. The fabric of claim 1, wherein all layers of machine transverse yarns comprise large and small yarns. 3. Fabric according to claim 1 or 2, characterized in that the machine direction yarn floating on said one side of the fabric is made of the same material as the machine direction yarn floating on the opposite side of the fabric. 3. Fabric according to claim 1 or 2, characterized in that the machine direction yarn floating on said one side of the fabric is made of a material different from the machine direction yarn floating on the opposite side of the fabric. A fabric as claimed in any one of the preceding claims, wherein the fabric comprises a plurality of machine direction yarn layers and a different material is used for the machine direction yarns provided on the opposite side of said one side of the fabric. Wherein the machine direction yarn floating on one of the fabrics is comprised of polyester and the machine direction yarn floating on the opposite side of the fabric consists of PPS, PEN or PEEK. A fabric as claimed in one of the preceding claims, characterized in that the difference in diameters of the large and small machine transverse yarns is between 0.1 and 0.6 mm. Characterized in that, in one of the preceding claims, large and small machine transverse yarns are provided alternately in a single machine transverse yarn layer. 10. A fabric as claimed in any one of the preceding claims, characterized in that the fabric comprises one or more machine-direction yarn layers and wherein large and small machine-direction yarns are provided alternately in a vertical direction to the adjacent layers. 10. A fabric as claimed in any of the preceding claims, characterized in that the fabric further comprises stuffer machine transverse yarns. 11. The fabric of claim 10, wherein the cross-section of the stretcher is not circular. 6. A fabric as claimed in any one of the preceding claims, wherein the cross-section of the machine direction yarn is not circular. 13. The fabric of claim 12, wherein the machine direction yarn is a flat monofilament having an aspect ratio of from 2: 1 to 4: 1. 13. A method according to claim 12, characterized in that the machine direction yarn is D-shaped and its curved surface faces into a straight body. A fabric as claimed in any one of the preceding claims, wherein the fabric comprises different machine direction yarns having different cross-sectional sizes and / or shapes. 3. A fabric as claimed in one of the preceding claims, wherein the fabric is a dryer fabric.