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다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0043931 (2013-10-02) |
등록번호 | US-9492328 (2016-11-15) |
우선권정보 | EP-11169396 (2011-06-10) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 1 인용 특허 : 628 |
Apparatus and method for producing absorbent structures with absorbent layers with channel(s) without absorbent material, using a first moving endless surface with specific raised strip(s) and a second moving endless surface with specific mating strip(s).
1. An apparatus for making an absorbent structure for an absorbent article, the absorbent structure comprising a supporting sheet and an absorbent layer on the supporting sheet, the absorbent layer comprising absorbent material and a channel that is substantially free of absorbent material, the appa
1. An apparatus for making an absorbent structure for an absorbent article, the absorbent structure comprising a supporting sheet and an absorbent layer on the supporting sheet, the absorbent layer comprising absorbent material and a channel that is substantially free of absorbent material, the apparatus comprising: a first moving endless surface having an absorbent layer-forming reservoir defining a void volume for receiving absorbent material therein, the reservoir comprising a substantially longitudinally extending raised strip;a feeder for feeding absorbent material to the first moving endless surface;a second moving endless surface having an outer shell including an air permeable receptacle for receiving a supporting sheet, the receptacle having a substantially longitudinally extending mating stripa vacuum system connected to the outer shell, the vacuum system adapted to facilitate retention of the supporting sheet and the absorbent material on the outer shell; andwherein, in a meeting point, the first moving endless surface and the second moving endless surface are adjacent and in close proximity of one another during transfer of absorbent material from the first moving endless surface to the second moving endless surface;wherein the mating strip is arranged to mate with the raised strip during transfer of the absorbent material; anda downstream pressure roll with a raised pressure pattern substantially corresponding to the mating strip, for contacting the supporting sheet in an area thereof corresponding to a channel. 2. The apparatus of claim 1, wherein the reservoir is formed by a multitude of cavities with a void volume for receiving the absorbent material therein. 3. The apparatus of claim 1, wherein the reservoir, excluding the raised strips, has apertures to be partially air permeable and wherein the first moving endless surface has a cylindrical surface with the reservoir rotatably moving around a stator comprising a vacuum chamber connected to the vacuum system; and wherein the second outershell is cylindrical rotatably moving around a stator comprising a vacuum chamber connected to the vacuum system. 4. The apparatus of claim 1, comprising: at least two mating strips the at least two mating strips are mirror images of one another with respect to a longitudinal axis of the receptacle; andat least two raised strips being mirror images of one another with respect to a longitudinal axis of the reservoir. 5. The apparatus of claim 1, wherein the receptacle further comprises a multitude of substantially longitudinally extending rods spaced apart from one another in transverse direction, and wherein top surfaces of the rods and the mating strips in the same plane of the receptacle. 6. The apparatus of claim 1, wherein the reservoir is formed by a plurality of cavities, and wherein cavities that are directly adjacent the raised strip have volumes that are greater than volumes of cavities that are not directly adjacent the raised strip. 7. The apparatus of claim 1, comprising an adhesive application unit positioned upstream from the meeting point. 8. The apparatus of claim 1, comprising downstream from the meeting point a unit to cover the absorbent layer with a further material, selected from a unit for folding the supporting sheet over the absorbent layer; a unit for applying a further supporting sheet; a unit for applying a further layered material, for example an acquisition material; a unit for combining the structure with a further absorbent structure.
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