Title:
HEAT-SHRINKABLE FILM AND HEAT-SHRINKAGE PACKAGING METHOD REQUIRING NO SPIKE HOLE
Document Type and Number:
Japanese Patent JP3213553
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent insects from getting in from a spike hole of a heat- shrinkage packaging film.
SOLUTION: An item to be packaged is wrapped in a film on which a part coat layer 10 is formed by applying a coating agent for heat seal, while the film is being continuously formed into a tubular shape, and under such conditions, the opposite side edges of the film are superposed one on the other to heat-seal the layer 10 by means of a rotary center sealer. The film whose center sealed portion is thermally bonded in the stripe-form is caused to shrink by heat and air within a packaged item is removed from a non-seal portion of the layer 10. An air removal hole at the non-seal portion is completely closed in the manner that the coating agent of the layer 10 is melted by the heat of the heat shrinkage in a shrinkage furnace.
Inventors:
Akio Tsujita
Yoshimasa Koshita
Takashi Sakai
Shinpei Kurokawa
Yoshimasa Koshita
Takashi Sakai
Shinpei Kurokawa
Application Number:
JP26375396A
Publication Date:
October 02, 2001
Filing Date:
September 13, 1996
Export Citation:
Assignee:
Nissin Foods Co., Ltd.
Oji Paper Co.,Ltd.
Oji Paper Co.,Ltd.
International Classes:
B65B53/00; B65B51/10; B65D65/40; B65D71/08; (IPC1-7): B65B53/00; B65B51/10; B65D71/08
Domestic Patent References:
| JP63197642A |
Attorney, Agent or Firm:
Masayuki Asakura
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