Paper material and flexible packaging material using the same
A paper material and coating layer technology, which is applied in the field of fluorine-free paper and flexible packaging materials using it, can solve the problems of cumbersome three-layer coating process, avoid adverse effects, improve recovery rate, reduce processing costs and Process effect
Active Publication Date: 2021-12-24
SUSTAINABLE CARBOHYDRATE INNOVATION CO LTD
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Problems solved by technology
CN102177296B provides a kind of coated paper with multi-layer coating, including: a first water vapor barrier layer formed with latex, a biopolymer barrier layer and a second water vapor barrier layer, although with improved grease resistance properties, oxygen barrier properties and water vapor barrier properties, but the process of coating three layers is cumbersome, and this case only teaches the function of blocking water vapor and oxygen
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[0022] Hereinafter, embodiments of the present invention will be described in detail. However, these embodiments are illustrative, and the present disclosure is not limited thereto.
[0023] Herein, a range indicated by "one value to another value" is a general representation to avoid enumerating all values in the range in the specification. Therefore, the description of a specific numerical range covers any numerical value within the numerical range and the smaller numerical range bounded by any numerical value within the numerical range, as if the arbitrary numerical value and the smaller numerical value are written in the specification. same range.
[0024] The invention provides a paper material and a flexible packaging material using the paper material. At least one surface of the paper is coated with a first coating layer and a second coating layer, wherein the second coating layer is a pre-coating layer between the surface of the paper and the first coating layer. ...
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Abstract
A paper material and a flexible packaging material using the same are provided. At least one surface of the paper material is coated with a first coating layer and a second coating layer. The paper has an air permeability greater than 45200 sec and a dyne value less than 40 dyn / cm. The first coating layer includes an inorganic filler and a first water-based heat-sealable coating, and the first water-based heat-sealable coating includes a polyolefin dispersion, an ethylene acrylic acid copolymer, or a styrene acrylate emulsion. The second coating layer includes an inorganic filler and a second water-based heat-sealable coating, and the second water-based heat-sealable coating includes a polyolefin dispersion, an ethylene acrylic acid copolymer, a styrene acrylate emulsion, or polyvinyl alcohol.
Description
technical field [0001] The invention relates to a paper material and a flexible packaging material using the same, and in particular to a fluorine-free paper material and a flexible packaging material using the same, which have both water resistance, oil resistance, high gas barrier properties, redispersible pulp properties, and Advantages of heat sealing and low surface energy. Background technique [0002] The form of packaging is ever-changing. It can not only attract the attention of consumers, but also provide protection and facilitate the circulation of products. It is widely used in food, electronics, medical care, daily necessities, and home appliances. It is an indispensable part of commodity circulation. . In recent years, with the development of the food industry, flexible packaging materials with high practicability have been widely used in food packaging, but the existing flexible packaging materials generally have the disadvantage of being difficult to recycle...
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IPC IPC(8): D21H27/10D21H19/56D21H19/64D21H19/58D21H21/16D21H21/14B65D65/42
CPCD21H27/10D21H19/56D21H19/64D21H19/58D21H21/16D21H21/14B65D65/42D21H19/822D21H19/60D21H19/38D21H19/385D21H19/40B65D65/40Y02W90/10D21H19/44
Inventor 黄雅惠杨茜谕郑朝育
Owner SUSTAINABLE CARBOHYDRATE INNOVATION CO LTD