Method for manufacturing particle deposited body

• US 6,706,129 B2
• Filed: 12/01/2000
• Issued: 03/16/2004
• Est. Priority Date: 12/22/1999
• Status: Expired due to Fees

• Current Assignee: KAO Corporation
• Original Assignee: KAO Corporation
• Inventors: Maeda, Kazuyuki, Sato, Kenichi, Umeki, Yasuhiro, Ando, Kenji, Hirasawa, Hiroshi
• Primary Examiner(s): Aftergut, Jeff H.
• Assistant Examiner(s): Musser, Barbara J
• Application Number:
  US09/726,493
• Publication Number:
  US 20010006089A1
• Time in Patent Office: 1,201 Days
• Field of Search: 264/517, 264/518, 264/122, 264/121, 264/119, 264/112, 156/62.2, 156/62.8, 156/285, 156/296, 156/276, 156/324, 156/209, 191/45, 193/01
• US Class Current: 156/62.2
• CPC Class Codes: A61F 13/15658 Forming continuous, e.g. composite, fibrous webs, e.g. involving the application of pulverulent material on parts thereof
• CPC Class Codes: A61F 13/15707 Mechanical treatment, e.g. notching, twisting, compressing, shaping
• CPC Class Codes: Y10T 156/1018 Subsequent to assembly of laminae
• CPC Class Codes: Y10T 156/1023 Surface deformation only [e.g., embossing]

Abstract

There is disclosed a method for manufacturing particle deposited body comprising supplying, under sucking condition, particles entrained by air on a continuous carrier sheet which is running at a prescribed direction to deposit the particles on the carrier sheet, thereby obtaining a particle deposited body comprising the particles and the carrier sheet, the carrier sheet having an air-permeability of 4.0 seconds/(300 ml·32 pcs.) or less.

Claims

1. A method for manufacturing a particle deposited body, comprising:

supplying a continuous carrier sheet which is running in a prescribed direction and having a tensile strength in the MD direction of 500 cN/25 mm or more;

supplying a retaining sheet onto said carrier sheet;

providing a partial vacuum behind said carrier sheet and retaining sheet so as to draw air therethrough in a thickness direction of the retaining sheet, said carrier sheet having an air-permeability of 4.0 seconds/(300 ml·

32 pcs.) or less;

entraining particles by air so as to deposit said particles into said retaining sheet to obtain a particle deposited body in which the particles are retained throughout the thickness direction of said retaining sheet.

2. The method for manufacturing a particle deposited body according to claim 1 wherein said air is sucked by a particle sucking portion which is formed in a predetermined configuration and the particles are deposited such that a contour of a deposited portion of the particles has a generally same configuration as said particle sucking portion.

3. The method for manufacturing a particle deposited body according to claim 1 wherein after the particles are deposited on said carrier sheet, dissipation preventing means for preventing dissipation and dropping of the particles is applied.

4. The method for manufacturing a particle deposited body according to claim 3, wherein after said dissipation preventing means is applied, said particle deposited body is subjected to embossing treatment and materials composing said particle deposited body are integrated.