[특허]Papermaking belt and method of making the same using a textured casting surface

Papermaking belt and method of making the same using a textured casting surface 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G03F-007/00
출원번호	US-0812193 (1991-12-20)
발명자 / 주소	Smurkoski John A. (Meshoppen PA) Leggitt Gary L. (Springville PA) Wilson Gregory L. (Cincinnati OH)
출원인 / 주소	The Procter & Gamble Company (Cincinnati OH 02)
인용정보	피인용 횟수 : 133 인용 특허 : 0

초록 ▼

A backside textured papermaking belt is disclosed which is comprised of a framework and a reinforcing structure. The framework has a first surface which defines the paper-contacting side of the belt, a second surface opposite the first surface, and conduits which extend between first and second surfaces of the belt. The first surface of the framework has a paper side network formed therein which defines the conduits. The second surface of the framework has a backside network with passageways that provide surface texture irregularities in the backside network. The papermaking belt is made by casting a photosensitive resinous material over and through the reinforcing structure while the reinforcing structure travels over a textured surface, and then exposing the photosensitive resinous material to light of an activating wavelength through a mask which has transparent and opaque regions. A process for making paper products is also disclosed which involves applying a fluid pressure differential from a vacuum source through the belt to a partially-formed embryonic web of papermaking fibers. The fibers in the embryonic web are deflected into the conduits of the papermaking belt by the vacuum pressure while the papermaking belt and the embryonic web travel over the vacuum source. Following the deflection, the paper web is impressed with the paper side network of the belt, and dried to form the final product.

대표청구항 ▼

A method of making a papermaking belt for use in a papermaking machine and having a textured backside, said papermaking belt comprising a reinforcing structure and a resinous framework having a first surface, a second surface opposite said first surface, and conduits extending between said first surface and said second surface, said first surface having a paper side network formed therein defining said conduits, said second surface having a backside network with passageways, distinct from said conduits, that provide surface texture irregularities in said backside network to reduce build-up of paper fibers on said papermaking machine, the method comprising the steps of: (a) providing a forming unit with a textured working surface; (b) providing a reinforcing structure having a paper-facing side, a machine-facing side opposite said paper-facing side, and interstices; (c) bringing at least a portion of said machine-facing side of said reinforcing structure into contact with said working surface of said forming unit; (d) applying a coating of liquid photosensitive resin to at least one side of said reinforcing structure, said coating being applied so that at least a portion of said second surface of said coating is positioned adjacent said working surface of said forming unit, said paper-facing side of said reinforcing structure is positioned between said first and second surfaces of said coating, and the portion of said coating which is positioned between said first surface of said coating and said paper-facing side of said reinforcing structure forms a resinous overburden, wherein at least a portion of said coating penetrates into the texture of the working surface of said forming unit, said texture creating areas in said second surface of said coating which are defined by said textured surface; (e) controlling the thickness of said overburden to a preselected value; (f) providing a mask having opaque and transparent regions, said opaque regions together with said transparent regions defining a preselected pattern in said mask; (g) positioning said mask between said coating of liquid photosensitive resin and an actinic light source so that said mask is in contacting relation with said first surface of said coating, said opaque regions of said mask protecting a portion of said coating from the light rays of said light source and said transparent regions leaving other portions of said coating unprotected; (h) curing said unprotected portions of said coating of liquid photosensitive resin and leaving said protected portions uncured by exposing said coating of liquid photosensitive resin to said light source through said mask to form a partially-formed composite belt; and (i) removing substantially all uncured liquid photosensitive resin from said partially-formed composite belt to leave a hardened resin framework around at least a portion of said reinforcing structure, which framework has a plurality of conduits in those regions which were protected from said light rays by the opaque regions of the mask and passageways that provide surface texture irregularities in the backside network of said framework corresponding to the places where the second surface of the coating penetrated into the texture of the working surface of the forming unit.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
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안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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Papermaking belt and method of making the same using a textured casting surface 원문보기

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