METHOD AND APPARATUS FOR MANUFACTURING DEHYDRATED SHEET

PROBLEM TO BE SOLVED: To provide a method and an apparatus for manufacturing a dehydrated sheet capable of stably ultrasonic welding for a long time. SOLUTION: The method for manufacturing the dehydrated sheet comprises a laminate forming step of forming a laminate in which a high osmotic pressure l...

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Bibliographische Detailangaben
Hauptverfasser:	SAITO TOSHINORI, ISHIWATARI KIYOKAZU
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMICAL RIPENING OF FRUIT OR VEGETABLES FOODS OR FOODSTUFFS HUMAN NECESSITIES PERFORMING OPERATIONS PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT,VEGETABLES, EDIBLE SEEDS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THE PRESERVED, RIPENED, OR CANNED PRODUCTS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method and an apparatus for manufacturing a dehydrated sheet capable of stably ultrasonic welding for a long time. SOLUTION: The method for manufacturing the dehydrated sheet comprises a laminate forming step of forming a laminate in which a high osmotic pressure layer is interposed between a pair of films of at least one being a water permeable film, and a welding step of sealing parts to be sealed of the laminate by welding. In the welding step, an ultrasonic welder having an ultrasonic oscillator for generating an ultrasonic wave, a horn for emitting the wave generated from the oscillator to the parts to be sealed of the laminate, and a horn receiving jig disposed oppositely to the horn is used, the parts to be sealed of the laminate are welded in a state in which an interval of the horn and the jig is regulated to 5 to 90% of a total sum of the thicknesses of the pair of the films. COPYRIGHT: (C)2003,JPO