Fastening systems comprising nonwoven substrates with hooks formed integrally thereon
a technology of nonwoven substrates and hooks, which is applied in the field of fastening systems comprising nonwoven substrates with hooks formed integrally thereon, can solve the problems that the techniques and the benefits they may provide in a variety of particular applications have not been fully developed or appreciated
Pending Publication Date: 2020-04-16
PROCTER & GAMBLE CO
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Benefits of technology
The patent describes a wearable article, such as a diaper, that includes a section of nonwoven material with hooks and loops for fastening. The nonwoven material is made of filaments of polymeric material and the hooks are formed by integrating the polymeric material into the nonwoven material. The nonwoven material also contains a section of loops made of the same material. The method for producing the nonwoven material involves spinning filaments, depositing them onto a belt, and bonding them together in a pattern of thermal bonds. The technical effects of this patent are improved fastening for wearable articles that is comfortable, durable, and easy to use.
Problems solved by technology
However, it is believed that these techniques and the benefits they may provide in a variety of particular applications have not been fully developed or appreciated.
Method used
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[0034]“Elastic” or “elastomeric” refers to the property of a material such as a stretch laminate material that elongates, without substantial rupture or breakage, by at least 50% at a load of between 0.1 and 10 N / cm in the Hysteresis Test. Rupture or breakage having a dimension less than 5 mm in any direction is not considered substantial rupture or breakage. However, ruptures through the structure having a dimension greater than 5 mm in any direction, breaks, ruptures or tears into two or more pieces, or breaks, ruptures or tears resulting in significant structural degradation which render the material unusable for its intended purpose, are considered substantial ruptures or breakage. Further, upon release of the load, the elastic material has a set less than or equal to 20% as measured by the Hysteresis Test. For example, an elastic material that has an initial length of 25 millimeters can elongate to at least 37.5 millimeters (50% elongation) and, upon removal of the f...
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Abstract
A wearable article includes hook-and-loop fastening components. The hook-and-loop fastening components have a section of nonwoven web material on which an array of hooks is formed. At least some of the hooks may be integrally formed from the nonwoven material. The section of nonwoven web material may also include a section of loops material, wherein at least some of the loops may be integrally formed from the web material. The section of loops material may have a machine direction dimension of at least 20 mm and a cross direction dimension of at least 20 mm, and a surface area of at least 314 mm2. The article may further include an identifiable linear path, the identifiable linear path having a width greater than 2 mm and forming an angle with the machine direction of 45 degrees or less. Any such identifiable path at least partially overlies the loops-forming bond(s), at a plurality of locations along the identifiable linear path.
Description
BACKGROUND[0001]Hook-and-loop fastening systems have been used in a variety of applications for a number of years. Such applications have included fastening systems for wearable garments and articles, including but not limited to disposable diapers. One currently popular configuration of disposable diaper / fastening system includes an absorbent chassis having a front waist region, crotch region and rear waist region, with a pair of fastening members each extending respectively laterally from left and right longitudinal edges of the chassis in the rear waist region. In a typical configuration, each fastening member includes a patch of material bearing hooks, affixed to the wearer-facing side of the fastening member. A patch or section of cooperating loops material is typically disposed on the outward-facing side of the front waist region. In this configuration, the chassis may be wrapped through the wearer's crotch area with the back waist region placed across the wearer's lower back ...
Claims
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IPC IPC(8): A61F13/56A44B18/00A61F13/62
CPCA61F13/625A61F13/627A44B18/0011A44B18/0015A61F13/5633A44B18/0049
Inventor SURUSHE, ABHISHEK PRAKASHHAYDEN, RUSSELL ANDREWLANDGREBE, JAMES DAVIDRAYCHECK, JEROMY THOMASRAMOS MEDINA, NAYDA LIZ
Owner PROCTER & GAMBLE CO