Patent Application
20190358094
The present invention relates generally to a system of producing a disposable absorbent article comprising a top sheet, a back sheet, an absorbent core positioned between said top sheet and said back sheet wherein said absorbent core having a core wrap that fully envelopes said absorbent core; said absorbent core comprises a mixture of fluff pulp and superabsorbent polymer (SAP) wherein said absorbent core having composition of SAP higher than composition of fluff pulp, and said SAP is having an Absorbency Under Load (AUL) above 17 g/g at 0.7 psi.
Absorbent articles, such as diapers, adult incontinence products, and training pants are designed to absorb and retain body fluids or liquids such as urine, feces or the like. Nevertheless, absorbent pad which is made of polyurethane foam having a structure that is relatively bulky and might cause a bigger size of absorbent articles.
Tanzer, U.S. Pat. No. 5,411,497 A disclosed an absorbent article comprises a first, liquid-permeable carrier layer and at least a second carrier layer. A water sensitive attaching mechanism secures together the carrier layers to provide substantially attached zones and substantially unattached zones thereof. The substantially unattached zones provide a plurality of pocket regions, and a high absorbency material is located within the pocket regions to provide an absorbent laminate. However, due to the construction of the pockets, and specifically due to the selection of the water-sensitive attachment means, these pockets are not maintained when the article is fully or partially loaded with liquids. Hence, this absorbent article does not provide a satisfactory immobilization of the absorbent material in the fully or partially urine loaded state.
Holmes et. al., US 20020115971 A1, discloses a thin, high capacity, multi-layer absorbent material. An upper layer displays intake property while a lower layer displays distribution property. The upper and lower layers are both high density combinations of fluff pulp and superabsorbent material, with the lower layer having a higher density than the upper layer. The upper layer is suitably drum-formed, the lower layer is suitably air-laid, and additional layers can be either inserted between the upper and lower layers or added on top of the upper layer. The absorbent material can be used to provide discreet absorbent protection in absorbent articles, such as diapers, training pants, feminine hygiene products, incontinence products, and swim wear. However, said prior art does not disclosed thin absorbent core with high absorbency.
Hence, it would be advantageous to alleviate the shortcomings by having a system and method of producing thin absorbent core with high level of superabsorbent polymer (SAP) and Absorbency Under Load (AUL).
Accordingly, it is the primary aim of the present invention to provide a disposable absorbent article with high level of superabsorbent polymer (SAP).
It is yet another object of the present invention to provide a disposable absorbent article having thin absorbent core with high absorbency.
It is yet another object of the present invention is to provide a disposable absorbent article which is environmental friendly.
It is yet another object of the present invention is to provide a disposable absorbent article which is user friendly.
Other further objects of the invention will become apparent with an understanding of the following detailed description of the invention or upon employment of the invention in practice.
According to the preferred embodiment of the present invention the following is provided:
A disposable absorbent article comprising:
characterized in that;
A method (3) of producing absorbent core comprising the steps of:
Other aspect of the present invention and their advantages will be discerned after studying the Detailed Description in conjunction with the accompanying drawings in which:
In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the invention. However, it will be understood by those with ordinary skill in the art that the invention may be practiced without these specific details. In other instances, well known methods, procedures and/or components have not been described in detail so as not to obscure the invention.
The invention will be more clearly understood from the following description of the embodiments thereof, given by way of example only with reference to the accompanying drawings, which are not drawn to scale.
As used in this disclosure and the appended claims herein, the singular forms “a”, “an”, and “the” include plural referents unless the context clearly dictates or denotes otherwise.
Throughout the disclosure and claims of this specification, the word “comprise” and variations of the word, such as “comprising” and “comprises,” means “including but not limited to,” and is not intended to exclude, for example, other components, integers or steps. “Exemplary” means “an example of” and is not intended to convey an indication of a preferred or ideal embodiment, “such as” is not used in a restrictive sense, but for explanatory purposes.
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In addition, said system (2) further comprises of a core integrity glue station (221) positioned substantially nearby said core wrap station (211) wherein said core integrity glue station (221) providing glue to the surface of a wrap facing mixture of fluff pulp and SAP particles. Said core wrap station (211) comprises of at least one rotatable roller (223). A wrap (225) is moving continuously between said rotatable roller (223) of said core wrap station (211) and said rotatable roller (209) of said rotary suction mechanism (201). Said core wrap station (211) further comprises of a web guide (227) for alignment of said wrap (225). Said rotatable roller (223) of said core wrap station (211) is guiding said wrap (225) toward a conveyor (208) and said rotatable roller (209) of said rotary suction mechanism (201) to enable the wrapping process of said absorbent core (103). Besides, said rotatable roller (209) of said rotary suction mechanism (201) is guiding said absorbent core (103) to a conveyor (208) to enable said absorbent core (103) to be fully enveloped by said wrap (225).
Referring to
While the present invention has been shown and described herein in what are considered to be the preferred embodiments thereof, illustrating the results and advantages over the prior art obtained through the present invention, and the invention is not limited to those specific embodiments. Thus, the forms of the invention shown and described herein are to be taken as illustrative only and other embodiments may be selected without departing from the scope of the present invention, as set forth in the claims appended hereto.
| Number | Date | Country | Kind |
|---|---|---|---|
| PI2018702040 | May 2018 | MY | national |
