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US 9,427,923 B2Granted
Food packing material having hydrophobicity, manufacturing method and mold thereof
AssigneesCj Cheiljedang Corporation, Korea Advanced Institute of Science and Technology
InventorsJin Hwan Lee, Kyoung Sik Jo, Sang Wook Lee, Min Young Park, Sang Eon Lee, Kang Won Lee, Jin Ha Kim, Heon Kwang Lim, Seung Seob Lee
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Abstract
Provided is an food packing material, manufacturing method and mold thereof having hydrophobicity including a number of columns formed in one side of food packing material. The disclosure may provide food packing material, manufacturing method and mold thereof in which an amount of contents off a wall of the food packing material may be minimized by hydrophobicity.
Claims7
The manufacturing method of food packing material having hydrophobicity, comprising:
- (a) preparing a mold in which a number of grooves are formed, and
- (b) forming a number of the columns corresponding to the groove in one side of the food packing material by pressurizing the mold to the food packing material,
- wherein (a) the preparing of the mold includes:
- (a-1) preparing a first metal layer;
- (a-2) laminating a photoresist film at a top of the first metal layer;
- (a-3) patterning the photoresist film and forming a number of the photoresist patterns to be spaced at a predetermined interval each other;
- and
- (a-4) forming the mold by laminating a second metal layer at the first metal layer.
5 more elements
Dependencies are inferred from the claim text.