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Bonding by induced high-rate of shear deformation

A technology of bonding fibers and bonding materials, applied in the direction of mechanical processing/deformation, household components, applications, etc., can solve the problems of no target material providing bonding speed and bonding strength, difficulties, etc.

Inactive Publication Date: 2008-05-21
KIMBERLY-CLARK WORLDWIDE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] [3] Conventional bonding processes, such as those described above, do not provide the desired combination of bonding speed and bond strength between target materials
Additionally, non-adhesive bonding processes have difficulty forming sufficiently strong bonds between materials with large differences in melting point temperature

Method used

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  • Bonding by induced high-rate of shear deformation
  • Bonding by induced high-rate of shear deformation
  • Bonding by induced high-rate of shear deformation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0196] [131] Additional examples provide data related to the following process variables: bonder temperature, bonding speed, and bonding pressure value in the nip area between bonding rolls. The data also relates to the possible impact of these variables on the bond strength between different combinations of target web materials.

[0197] [132] It is desirable to eliminate the preheat function from the bonding system. Therefore, the effect of bonder temperature on the results of pressure bonding was studied in order to fully understand the basic mechanism of non-glued mechanical bonding. A JOA pressure bonder (CURT G. JOA, inc., Sheboygan Falls, Wiscons in, U.S.A) was used for the rotation pressure bond test. The patterned roller used has the characteristics and parameters described in Table 4 below.

[0198] [133] Table 4 JOA pressure bonder and needle pattern parameters.

[0199] Adhesive

Pneumatic cylinder

Needle pattern (round needle)

D 1

mm

D 2...

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Abstract

The bonding method and apparatus ( 20 ) includes a delivering of a target web ( 26 ) having one or more selected bonding materials through a nip region ( 30 ) between at least one cooperating pair of rotatable bonding rollers ( 32, 34 ), thereby forming and producing a bonded web ( 28 ). In a particular aspect, a pattern roller ( 32 ) can be configured to provide a distinctively high, pattern surface speed. In another aspect, the pair of bonding rollers can be configured to provide a distinctively low, bonding pressure value. In further aspects, an anvil roller ( 34 ) can be provided with an anvil surface speed, and the anvil surface speed can be configured to be substantially equal to the pattern surface speed.

Description

Technical field [0001] [1] The present invention relates to a technique for forming a bonded fiber web. More specifically, the present invention relates to a technique for forming a bonded fiber web by inducing deformation at a high shear rate. Background technique [0002] [2] By using traditional methods such as glue bonding, thermal bonding, and ultrasonic bonding, polymer films and fabrics have been bonded together. The bonding process conveys the target web material through the nip formed between a pair of inverted bonding rollers, and includes a bonding roller with a smooth surface, a bonding roller with a surface including a distributed pattern of bonding elements, And the combination of rollers with smooth and patterned surfaces. The bonding process uses a combination of heat and pressure to achieve the desired bonding. In a particular configuration, the bonding rollers have been configured differently or rotated differently to create a surface speed difference between th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C65/00B29C65/02B29C65/06B29C65/56B31F5/02
CPCB29K2023/06B31F5/022B29C65/02B29C65/0681B29C65/8223B29C66/73116B29C66/8242B29K2067/046B29C65/8207B29K2023/0625B29C66/344B29C66/21B29C66/81433B29K2105/0854B29K2023/00B29C66/939B29C66/93B29L2031/4878B29K2077/00B29K2067/00B29C65/8215B31F5/008B29C66/83413B29K2023/12B29C66/93451B29C66/93411B29C66/71B29C66/7294B29C66/432B29C66/43B29C66/41B29C66/8122B29C66/81261B29C66/8248B29C66/8161B29C66/723B29C66/1122B29C66/0242B29K2023/14B29K2023/08B29K2905/12B29K2905/10
Inventor N·塞纳帕蒂庄仕明
Owner KIMBERLY-CLARK WORLDWIDE INC
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