PRODUCTION METHOD FOR LONG STRETCHED FILM

The production method for a long stretched film of the present invention comprises a film-forming step, a diagonal stretching step, and a winding step. A diagonal stretching device provided with inner and outer gripping tool travel-supporting tools that comprise a gripping tool is used on both sides...

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Main Authors HATAKEYAMA, SHIMPEI, INAGAKI, SHINJI, UENO, DAISUKE, NANBU, HIROSHI, HOJO, DAISUKE
Format Patent
LanguageEnglish
French
Japanese
Published 29.08.2013
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Abstract The production method for a long stretched film of the present invention comprises a film-forming step, a diagonal stretching step, and a winding step. A diagonal stretching device provided with inner and outer gripping tool travel-supporting tools that comprise a gripping tool is used on both sides of the film. With regards to the inner and outer gripping tool travel-supporting tools, the lengths (li) and (lo) of the travel interval of the gripping tools that grip the long film and the total lengths (Li) and (Lo) of the inner and outer gripping tool travel-supporting tools are adjusted so as to satisfy general formulas (I) and (II). General formula (I): Lo-2(lo-li)<Li<Lo. General formula (II): li<lo<Lo/2. Le procédé de production pour un film étiré long selon la présente invention comprend une étape de formation de film, une étape d'étirage diagonal et une étape d'enroulement. Un dispositif d'étirage diagonal comprenant des outils d'aide au déplacement d'un outil de préhension interne et externe comportant un outil de préhension est utilisé des deux côtés du film. En ce qui concerne les outils d'aide au déplacement d'un outil de préhension interne et externe, les longueurs (li) et (lo) de l'intervalle de déplacement des outils de préhension qui saisissent le film long et les longueurs totales (Li) et (Lo) des outils d'aide au déplacement d'un outil de préhension interne et externe sont réglées de manière à correspondre aux formules générales (I) et (II). Formule générale (I) : Lo-2(lo-li)<Li<Lo. Formule générale (II) : li<lo<Lo/2.
AbstractList The production method for a long stretched film of the present invention comprises a film-forming step, a diagonal stretching step, and a winding step. A diagonal stretching device provided with inner and outer gripping tool travel-supporting tools that comprise a gripping tool is used on both sides of the film. With regards to the inner and outer gripping tool travel-supporting tools, the lengths (li) and (lo) of the travel interval of the gripping tools that grip the long film and the total lengths (Li) and (Lo) of the inner and outer gripping tool travel-supporting tools are adjusted so as to satisfy general formulas (I) and (II). General formula (I): Lo-2(lo-li)<Li<Lo. General formula (II): li<lo<Lo/2. Le procédé de production pour un film étiré long selon la présente invention comprend une étape de formation de film, une étape d'étirage diagonal et une étape d'enroulement. Un dispositif d'étirage diagonal comprenant des outils d'aide au déplacement d'un outil de préhension interne et externe comportant un outil de préhension est utilisé des deux côtés du film. En ce qui concerne les outils d'aide au déplacement d'un outil de préhension interne et externe, les longueurs (li) et (lo) de l'intervalle de déplacement des outils de préhension qui saisissent le film long et les longueurs totales (Li) et (Lo) des outils d'aide au déplacement d'un outil de préhension interne et externe sont réglées de manière à correspondre aux formules générales (I) et (II). Formule générale (I) : Lo-2(lo-li)<Li<Lo. Formule générale (II) : li<lo<Lo/2.
Author HOJO, DAISUKE
NANBU, HIROSHI
UENO, DAISUKE
INAGAKI, SHINJI
HATAKEYAMA, SHIMPEI
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– fullname: HOJO, DAISUKE
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RelatedCompanies KONICA MINOLTA, INC
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Snippet The production method for a long stretched film of the present invention comprises a film-forming step, a diagonal stretching step, and a winding step. A...
SourceID epo
SourceType Open Access Repository
SubjectTerms AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES
INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS
PERFORMING OPERATIONS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Title PRODUCTION METHOD FOR LONG STRETCHED FILM
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