Method for production of disposable absorbent articles

a technology of absorbent articles and disposables, which is applied in the direction of personal care, lamination, application, etc., can solve the problems of inconvenient handling of finished articles, large area of production facilities, and inability to secure elastic components to running material webs in continuous processes, and achieve the effect of efficient production of articles

US20150313765A1Inactive Publication Date: 2015-11-05ESSITY HYGIENE & HEALTH AB
5 Cites 0 Cited by

Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
Publication Date
2015-11-05
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A method for production of disposable pant diapers, the method including providing a length of a substantially homogeneous elastic laminate web having a maximum elastic extensibility in a first direction of at least 40% under a peak load Fp; advancing the length of the substantially homogeneous elastic laminate web in the first direction; attaching individual absorbent cores to the length of the elastic laminate web during the advancing to create a strip, while maintaining the length of the substantially homogeneous elastic laminate web under a tensioning load Ft in the first direction; folding the strip onto itself; maintaining the length of the substantially homogeneous elastic laminate web under the tensioning load Ft in the first direction during the folding; the tensioning load Ft satisfying the condition: 0.03 Fp≦Ft≦0.25 Fp; and welding the substantially homogeneous elastic laminate web and severing the individual pant diapers along the weld lines.
Need to check novelty before this filing date? Find Prior Art

Description

[0001] The present application is a continuation of U.S. Ser. No. 11 / 658,539, filed on Jan. 25, 2007, which is a national stage application of PCT / SE2004 / 001384, filed on Sep. 29, 2004. The entire contents of U.S. Ser. No. 11 / 658,539 and PCT / SE2004 / 001384 are incorporated herein by reference.TECHNICAL FIELD

[0002] The present invention relates to a method for production of disposable hygienic absorbent articles such as pants-type absorbent articles.BACKGROUND OF THE INVENTION

[0003] In order to improve comfort and fit, disposable hygienic articles, and particularly those which are intended to be worn around the waist of a user, are commonly provided with elastic components in selected regions of the article. In a pants-type absorbent article, i.e. an article which is pulled on in the same manner as a traditional pair of pants, the selected regions comprise the waist opening and the leg openings. Conventionally, the elastic components used in these regions are in the form of elastic threa...

Examples

Embodiment Construction

[0022]In FIG. 1, reference numeral 10 generally denotes length of a production line for the production of a disposable hygienic absorbent article 12. In the present example, the absorbent article is a pull-up pants-type diaper.

[0023]The various components of the absorbent article are united on a (not shown) continuous conveyor belt running in a direction of travel denoted by arrow A. In the broadest form of the invention, a continuous length of a substantially homogenous elastic laminate web 14 is placed on the conveyor belt and maintained under a tensioning load Ft. The elastic laminate web has a maximum extensibility in a first direction corresponding to the direction of travel denoted by arrow A of at least 40%, preferably at least 60%, and most preferably at least 80%, under a peak load Fp. The continuous length of the elastic laminate web 14 is advanced in the direction of travel A to a station at which individual absorbent cores 16 are attached to the continuous length of the ...