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Air-laying method and apparatus air-laying of the fiber web comprising dispersed particles

机译：包含分散颗粒的纤维网的气流成网方法和设备气流成网

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Apparatus for and methods of forming airlaid fibrous webs having a multiplicity of layers and/or discrete particles of absorbent gelling material dispersed through at least a portion of the web. The apparatus (20) is of the type which includes an airlaying means (34,46) such as a laydown drum (100,110) having a foraminous forming element; a first or primary deposition means (36) for directing a first or primary stream (54) of air-entrained fibres to the laydown drum (100); a first or primary hood (38); a dusting layer deposition means (42) for directing a dusting layer stream (56) of air-entrained fibres to the laydown drum (100) wherein the dusting layer stream is deposited onto the laydown drum (100) prior to depositing the first or primary stream (54) on the laydown drum (100) and a dusting layer hood (44). The dusting layers (1012) acts to block the passage of particles or fibres entrained in the first fibre stream (54) so as to minimize equipment plugging problems and the loss of particles or fibres through the foraminous forming element. In addition, the first vacuum chamber (126) in the laydown drum (100) spans the first hood (38) and a portion of the dusting layer hood (44) so that the dusting layer (1012) is not sheared off, damaged, or destroyed as the laydown drum (100) rotates to the position where the first fibre stream (54) is deposited over the dusting layer (1012). The method preferably comprises the steps of: a. providing multiplicity of streams (54,56,58) of air-entrained fibres: b. directing a dusting layer stream (56) of air-entrained fibres to an airlaying means (34); c. forming a dusting layer (1012) on the airlaying means (34) from the dusting layer stream (56) of air-entrained fibres; d. directing a first stream (54) of air-entrained fibres to the airlaying means (34); e. forming a first layer (1014) over the dusting layer (1012) on the airlaying means (34) from the first stream (54) of air-entrained fibres. e

机译：用于形成气流成网的纤维网的设备和方法，该气流成网的纤维网具有分散在该网的至少一部分中的多个层和/或离散的吸收性凝胶材料颗粒。设备（20）是这样的类型，其包括气垫装置（34，46），例如具有多孔形成元件的铺网鼓（100，110）。第一或主要沉积装置（36），用于将空气夹带的纤维的第一或主要流（54）引导至沉积鼓（100）;第一或第一引擎罩（38）;除尘层沉积装置（42），用于将夹带空气的纤维的除尘层流（56）引导至沉积鼓（100），其中在沉积第一或初级纤维之前，将除尘层流沉积至沉积鼓（100）上气流（54）在沉积滚筒（100）和除尘罩（44）上。除尘层（1012）用于阻止夹带在第一纤维流（54）中的颗粒或纤维通过，从而使设备堵塞问题以及颗粒或纤维通过多孔形成元件的损失最小化。另外，沉积滚筒（100）中的第一真空室（126）跨越第一罩（38）和除尘罩（44）的一部分，以使除尘层（1012）不会被剪切，损坏，当沉积滚筒（100）旋转到第一纤维流（54）沉积在除尘层（1012）上的位置时，该纤维被破坏或损坏。该方法优选地包括以下步骤：a。提供多种气流夹带的纤维流（54、56、58）：b。将夹带空气的纤维的除尘层流（56）引导至气流成网装置（34）; C。由夹带空气的纤维的除尘层流（56）在气流成网装置（34）上形成除尘层（1012）; d。将空气夹带的纤维的第一流（54）引导到气流成网装置（34）; e。由空气夹带的第一纤维流（54）在气流成网装置（34）上的除尘层（1012）上形成第一层（1014）。 Ë

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公开/公告号JP2541557B2

专利类型
公开/公告日1996-10-09

原文格式PDF
申请/专利权人 PROCTER & GAMBLE;
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申请/专利号JP19870133266
发明设计人 JON JOSEFU ANGUSUTATSUTO;
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申请日1987-05-28
分类号D04H1/40;A61F5/44;A61F13/15;D04H1/72;
国家 JP
入库时间 2022-08-22 03:57:50

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