Water-soluble film roll and method for paying out water-soluble film
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B29D-022/00
B65D-085/672
C08J-005/18
출원번호
US-0345186
(2012-01-06)
등록번호
US-9340352
(2016-05-17)
우선권정보
JP-2004-339083 (2004-11-24)
발명자
/ 주소
Hosoda, Naohiro
Hikasa, Shintaro
출원인 / 주소
KURARAY CO., LTD.
대리인 / 주소
Oblon, McClelland, Maier & Neustadt, L.L.P.
인용정보
피인용 횟수 :
0인용 특허 :
3
초록▼
To provide a water-soluble film roll 3 having end faces 4 with masking materials 5 adhered thereto. By using the water-soluble film roll 3 and paying out a water-soluble film 1 while holding the masking materials 5 adhered to the end faces 4, it is possible to prevent moisture from adhering to the e
To provide a water-soluble film roll 3 having end faces 4 with masking materials 5 adhered thereto. By using the water-soluble film roll 3 and paying out a water-soluble film 1 while holding the masking materials 5 adhered to the end faces 4, it is possible to prevent moisture from adhering to the end faces 4 and to prevent the water-soluble film 1 from rupturing due to welding of the film 1 with itself. In this connection, the masking materials 5 are preferably a plastic film capable of being adhered to the end faces 4 with a pressure-sensitive adhesive.
대표청구항▼
1. A method for paying out a water-soluble polyvinyl alcohol film, comprising paying out the water-soluble polyvinyl alcohol film from a roll of the water-soluble polyvinyl alcohol film while a masking material is adhered to an end face of the roll of the water-soluble polyvinyl alcohol film, wherei
1. A method for paying out a water-soluble polyvinyl alcohol film, comprising paying out the water-soluble polyvinyl alcohol film from a roll of the water-soluble polyvinyl alcohol film while a masking material is adhered to an end face of the roll of the water-soluble polyvinyl alcohol film, wherein the masking material prevents moisture from permeating the end face of the roll of the water-soluble polyvinyl alcohol film and reduces the amount of rupture of the water-soluble polyvinyl alcohol film during the paying out,the masking material is adhered to an end face of the roll of the water-soluble polyvinyl alcohol film with a pressure-sensitive adhesive,the pressure-sensitive adhesive has an adhesion of 0.01 to 5 N/cm, andthe paying out speed is 1 to 100 m/min. 2. The method according to claim 1, wherein the pressure-sensitive adhesive has an adhesion of 0.01 to 2 N/cm. 3. The method according to claim 1, wherein the paying out speed is 1 to 80 m/min. 4. The method according to claim 1, wherein the paying out speed is 1 to 60 m/min. 5. The method according to claim 1, wherein the water-soluble polyvinyl alcohol film has a thickness of 10 to 200 μm. 6. The method according to claim 1, wherein the water-soluble polyvinyl alcohol film has a water content of 1 to 6% by weight. 7. The method according to claim 1, wherein the water-soluble polyvinyl alcohol film has a Young's modulus of 50 to 500 MPa. 8. The method according to claim 1, wherein the masking material is composed of a plastic film. 9. The method according to claim 1, wherein the water-soluble polyvinyl alcohol film is a hydraulic transfer base film. 10. The method according to claim 1, wherein the roll comprises the water-soluble polyvinyl alcohol film wound around a core. 11. The method according to claim 1, wherein the masking material is composed of plastic film, paper, plate, nonwoven fabric, woven fabric or knit. 12. The method according to claim 1, wherein the masking material consists of a plastic film. 13. The method according to claim 1, wherein the masking material is composed of a film of polyester, polyolefin, polyvinyl chloride, cellophane or acetate. 14. The method according to claim 1, wherein the masking material is composed of a film of polyolefin. 15. The method according to claim 1, wherein the masking material eliminates rupture of the water-soluble polyvinyl alcohol film during the paying out. 16. The method according to claim 1, wherein the masking material is adhered to each end face of the roll of the water-soluble polyvinyl alcohol film. 17. The method according to claim 1, wherein the water-soluble polyvinyl alcohol film is a single layer film. 18. The method according to claim 1, wherein a wound film of the roll consists essentially of the water-soluble polyvinyl alcohol film. 19. The method according to claim 1, wherein a wound film of the roll consists of the water-soluble polyvinyl alcohol film. 20. The method according to claim 1, wherein a wound film of the roll consists essentially of the water-soluble polyvinyl alcohol film and wherein the water-soluble polyvinyl alcohol film is a single layer film. 21. A method for producing a printed film, the method comprising applying print to the water-soluble film while paying out the water-soluble film by the method according to claim 1.
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