公开(公告)号：US20030070270A1

公开(公告)日：2003-04-17

申请号：US10244683

申请日：2002-09-17

Inventor： Gunnar Edvardsson ,  Claes Goransson

IPC: B31F001/00 ,  D04H001/44

CPC classification number: D04H1/44 ,  Y10T156/1002

Abstract: The present invention relates to a method of compressing fibrous bodies which are held in place on a perforated support (1, 3) by means of negative pressure. According to the invention, each fibrous body to be compressed is first arranged on a first support (1) which comprises parts with (8) and without (7) perforations within the region covered by the fibrous body. A first compression of the fibrous body is then brought about in those portions thereof which cover the part (7) or parts without perforations of the first support (1). The partly compressed fibrous body is then transferred to a second support (3) which comprises perforations in the part (11) or parts covered by compressed portions of the fibrous body but is without perforations within one or more parts (12) covered by uncompressed portions of the fibrous body, and a second compression of the fibrous body is brought about when the latter is placed on the second support (3) in those portions of the body which cover the part or parts (12) without perforations of the second support. If required, similar compression steps are repeated until all portions of the fibrous body have been compressed. The invention also relates to an arrangement for implementing the method.

Abstract translation: 本发明涉及一种通过负压将纤维体压缩在多孔支撑体（1,3）上的位置的方法。 根据本发明，待压缩的每个纤维体首先被布置在第一支撑件（1）上，该第一支撑件（1）包括在由纤维体覆盖的区域内具有（8）且没有（7）穿孔的部分。 然后在覆盖部分（7）的部分或第一部分没有第一支撑（1）的穿孔的情况下将纤维体的第一压缩带入。 然后将部分压缩的纤维体转移到第二支撑件（3），第二支撑件（3）包括部分（11）中的穿孔或由纤维体的压缩部分覆盖的部分，但是在由未压缩部分覆盖的一个或多个部分（12）内没有穿孔 并且当所述纤维体在所述主体的覆盖所述部分或部分（12）的那些部分中放置在所述第二支撑件（3）上而没有所述第二支撑件的穿孔时，所述纤维体的第二压缩。 如果需要，重复类似的压缩步骤，直到纤维体的所有部分都被压缩。 本发明还涉及一种用于实现该方法的装置。

公开(公告)号：US20020144384A1

公开(公告)日：2002-10-10

申请号：US10013875

申请日：2001-12-11

Applicant: The Dow Chemical Company

Inventor： Rexford A. Maugans

IPC: D04H001/44

CPC classification number: D04H1/544 ,  D04H3/14

Abstract: A method for producing a nonwoven fabric comprises passing a fiber web through a pair of rollers to obtain a thermally bonded fabric with a high percentage of bond areas. The high percentage of bond areas is formed by an engraved pattern on at least one of the rollers. The engraved pattern has a high percentage of bond point areas and wide bond point angles. The nonwoven fabric has increased tensile strength, elongation, abrasion resistance, flexural rigidity, and/or softness.

Abstract translation: 一种无纺布的制造方法，其特征在于，使纤维网通过一对辊，得到粘合面积比例高的热粘合织物。 粘合区域的高百分比由至少一个辊子上的雕刻图案形成。 雕刻图案具有高百分比的粘合点区域和较宽的粘合点角度。 非织造布具有增加的拉伸强度，伸长率，耐磨性，抗弯刚度和/或柔软度。