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1. 发明授权

US3519470A Method for treating packaging material with a hydrocolloid release coating 失效
标题翻译：用水解释放涂层处理包装材料的方法
公开(公告)号：US3519470A
公开(公告)日：1970-07-07
申请号：US3519470D
申请日：1967-07-10
申请人： KRAFTCO CORP
发明人： GORDON ARTHUR L , WARWICK LEONARD A
IPC分类号： B65D65/40 , B65D65/42 , B44D5/08
CPC分类号： B65D65/42 , Y02A40/961 , Y02W90/11
摘要： 1,239,626. Coated packaging material. KRAFTCO CORP. 9 July, 1968 [10 July, 1967], No. 32741/68. Heading B2E. Surfaces of food-packaging materials are treated to provide a release coating thereon by applying a coating of a hydrated hydrocolloid in amount 0.5-5.0 pounds on a dry basis per ream of packaging material. (A "ream" is defined as an area of 3000 square feet). Examples of suitable release agents are corn starch, wheat flour, Guar gum, carrageenan, carboxymethyl cellulose and combinations thereof. The hydrocolloid may first be mixed with cold water to form a paste or suspension and the suspension then heated to promote hydration of the hydrocolloid. The suspension is maintained at elevated temperature under stirring conditions until the hydration is completed and a colloidal solution of gel is formed. The hydrocolloid gel is then applied to the packaging materials by, say, gravure cylinders and knife combination to apply a thin film layer of the hydrocolloid to a continuous web of packaging material. Certain readily hydrated hydrocolloid material such as pre-gelatinized starch, dextrin, and non-ionic water-soluble cellulose ethers may be applied to the surface of the packaging material in a substantially dry condition, the hydrocolloid materials being hydrated in situ by absorption of moisture from the packaged product to form a thin film. Application of these readily hydrated hydrocolloid materials may be by dusting, or in the form of a slurry in an inert organic carrier such as isopropanol or ethanol. The packaging material is suitable for wrapping processed cheese, cream cheese, margarine, caramels or toffee. The packaging material may be a cellulose nitrate/aluminium foil/wax-resin blend lamination.

2. 发明授权

US3900574A Treatment of cheese slices to prevent sticking together 失效
标题翻译：处理单张图，以防止挂钩
公开(公告)号：US3900574A
公开(公告)日：1975-08-19
申请号：US40289273
申请日：1973-10-03
申请人： KRAFTCO CORP
发明人： WARWICK LEONARD A
IPC分类号： A01J27/04 , A23C19/09 , A23C19/16 , A23C19/00 , A23C19/02 , A23C19/14
CPC分类号： A01J27/04 , A23C19/0908 , A23C19/16
摘要： A stack of individual slices of cheese product is provided. At least one surface of every individual slice in the stack is provided with a thin coating of starch or mixtures of starch and a gum. The invention further provides a method for applying the starch or starch mixture to a cheese product during the highspeed manufacture of individual slices of the cheese product.

3. 发明授权

US3645757A Food packaging method employing release agent coated packaging material 失效
标题翻译：食品包装方法采用脱模剂涂层包装材料
公开(公告)号：US3645757A
公开(公告)日：1972-02-29
申请号：US3645757D
申请日：1970-05-28
申请人： KRAFTCO CORP
发明人： GORDON ARTHUR L , WARWICK LEONARD A
IPC分类号： B65B25/06
CPC分类号： B65D81/24 , Y10S426/811
摘要： An improved package for moisture-containing food products and a method for providing improved release properties for such food products is provided. The release properties are provided by a thin film or layer of a suitable readily hydrated hydrocolloid. Suitable hydrocolloids may be selected from pregelatinized starches, modified cellulose materials or mixtures thereof.
摘要翻译：提供了一种用于含水分食品的改进包装以及用于提供这种食品改进的脱模性能的方法。释放性质由适当容易水合的水胶体的薄膜或层提供。合适的水胶体可以选自预胶化淀粉，改性纤维素材料或其混合物。

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