公开(公告)号：WO1995018886A1

公开(公告)日：1995-07-13

申请号：PCT/DK1995000011

申请日：1995-01-06

Applicant: SCAN-WEB I/S ,  MOSGAARD CHRISTENSEN, John, Hardy ,  SCHILKOWSKI, Helmut, Erwin

Inventor： SCAN-WEB I/S

IPC: D21H23/02

CPC classification number: D04H1/425 ,  D04H1/60 ,  D04H1/68 ,  D21F9/00

Abstract: For the manufacturing of dry-formed webs of cellulose fibres there are two different ways of binding the fibres, viz. an application of glue to the web surfaces and, respectively, an admixing into the fibre charge of heat actuated binding fibres that are actuated by passing the web through a heating zone. The latter method is the better in practice, of course, in particular for liquid absorbing products, but the problem exists that the finished material is dusting with short, unbonded fibres. According to the invention it has been realized that it is possible to widely avoid this problem by auxiliary use of the first method, modified to the effect that both surfaces of the web are concurrently subjected to a supply of a very small amount of glue in foamed condition, e.g. with only 1 gram per square meter, whereby the surfaces remain permeable, but also sealing against extrusion of short fibres from inside the web.

Abstract translation: 对于纤维素纤维的干成型网的制造，有两种不同的结合纤维的方式，即 将粘合剂施加到幅材表面上，并且分别混合到通过将幅材通过加热区域而被致动的热致动结合纤维的纤维填料中。 后一种方法在实践中是更好的，当然，特别是对于液体吸收产品，但是问题存在，成品材料是用短的，未粘合的纤维喷粉的。 根据本发明，已经认识到，可以通过辅助使用第一种方法来广泛地避免这个问题，改进为纸幅的两个表面同时经受在泡沫中供应非常少量的胶 条件，例如 每平方米只有1克，由此表面保持可渗透性，而且还可防止短纤维从网内挤出。

公开(公告)号：WO1997030223A1

公开(公告)日：1997-08-21

申请号：PCT/DK1997000066

申请日：1997-02-12

Applicant: SCAN-WEB I/S ,  SCHILKOWSKI, Helmut, Erwin

Inventor： SCAN-WEB I/S

IPC: D21H27/42

CPC classification number: D04H1/425 ,  D04H1/54 ,  D04H1/542 ,  D04H5/06 ,  Y10T428/249942 ,  Y10T428/249947 ,  Y10T428/249949 ,  Y10T428/249965 ,  Y10T442/69 ,  Y10T442/692 ,  Y10T442/695 ,  Y10T442/698

Abstract: An inexpensive sheet or web shaped fibre material for use e.g. in sanitary napkins typically consists of a mixture of short cellulose fibres and some 15 % of relatively long, thermoplastic binder fibres. It is a noticeable problem that the short fibres "dust" out of the material, and according to the invention this is remedied in that the material, when made by dry forming, is provided with a surface coating of very thin layers of pure binder fibres. In addition to a marked holding back of the dust, these layers condition that the amount of binder fibres in the base material can be halved and that the breaking stress of the material is noticeably improved. Thereby the products are usable not only as inserts, but also as individual, self-contained units e.g. for wiping in domestic or industrial cleaning.

公开(公告)号：WO1996007792A1

公开(公告)日：1996-03-14

申请号：PCT/DK1995000357

申请日：1995-09-06

Applicant: SCAN-WEB I/S ,  MOSGAARD CHRISTENSEN, John, Harly

Inventor： SCAN-WEB I/S

IPC: D21H27/42

CPC classification number: D21F9/00 ,  A61F13/15658

Abstract: In the production of airlaid paper webs it is possible to add super absorbing powder materials, typically by addition either beforehand, to the fibre material to be distributed, or subsequently, viz. to the top side of an already formed web, between successively formed layers thereof. Both methods involve drawbacks, and with the invention is has been recognized that it is advantageous to introduce the powder material at an intermediate stage between the initial supply of the fibres to the airlaying unit and the final formation of the web; thus, a first coarse distribution of the powder is effected in a compulsory manner, independently of the initial supply of the fibre material, while the final distribution of the powder is effected by means of the same air flows which cause the final distribution of the fibre material for forming the even web layer. In this manner the powder is effectively mixed evenly into the fibre material.

Abstract translation: 在生产气流成网纸幅时，通常可以通过预先添加到待分配的纤维材料中或之后添加超吸收性粉末材料。 到已经形成的网的顶侧，在其相继形成的层之间。 两种方法都存在缺陷，并且已经认识到，本发明已经认识到，有利的是将粉末材料引入到初始供应到气流成型装置的纤维和纤维网的最终形成之间的中间阶段; 因此，粉末的第一粗分布是以与纤维材料的初始供应无关的方式强制实现的，而粉末的最终分布是通过使纤维最终分布的相同空气流进行的 用于形成均匀网层的材料。 以这种方式，将粉末有效地均匀地混合到纤维材料中。

公开(公告)号：WO1986000097A1

公开(公告)日：1986-01-03

申请号：PCT/DK1985000055

申请日：1985-06-12

Applicant: SCAN-WEB I/S ,  LAURSEN, Henning ,  CHRISTENSEN, John, Mosgaard ,  NIELSEN, Otto, Viggo ,  POLAND, Clark, Loring

Inventor： SCAN-WEB I/S

IPC: D04H01/00

CPC classification number: D04H1/732

Abstract: In a dry forming system for laying out a fibrous layer on a forming wire (2) a perforated pipe (12) is used, which extends crosswise over the forming wire, and through which is passed a flow of air fluidized fibers. Inside the pipe (12) is arranged a rapidly rotating needle cylinder (34), the needles (36) of which exert a transverse carding action on the fibers. For enabling a laying out of long fibers or a mixture of both long and short fibers the pipe (12) is provided with oblong perforations (50), which should, surprisingly, be oriented in the longitudinal direction of the pipe for giving rise to a considerable fiber discharge capacity. An admixture of short and long fibers may be supplied from a mixing unit, to which is fed separate air fluidized fiber flows from individual defibrators for optimally defibrating pulp materials of short and long fibers, respectively.

Abstract translation: 在用于在成形网（2）上铺设纤维层的干式成形系统中，使用穿孔管（12），穿孔管（12）在成形网上横向延伸，并通过空气流动纤维流。 在管道（12）内设置有快速旋转的针筒（34），其针（36）对纤维施加横向梳理作用。 为了能够布置长纤维或长纤维和短纤维的混合物，管（12）设置有长圆形孔（50），其应该令人惊讶地沿管的纵向取向，以产生 相当大的纤维放电容量。 可以从混合单元提供短纤维和长纤维的混合物，从混合单元中分别供给来自各个除颤器的分离的空气流化纤维流，以分别优化短纤维和长纤维的纸浆材料的解纤维。