Sulfur dioxide fresh-keeping laminate, preparation method and application

A technology of sulfur dioxide and laminates, which is applied in chemical instruments and methods, applications, and preservation of fruits and vegetables. Complicated and other issues, to achieve easy quality control, low production cost, and good fresh-keeping effect
CN110447710AInactive Publication Date: 2019-11-15山东营养源食品科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
山东营养源食品科技有限公司
Publication Date
2019-11-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a sulfur dioxide fresh-keeping laminate. The laminate at least comprises a first base material, a second base material, an adhesive and a sulfur dioxide releasing agent, whereina mixture of the adhesive and the sulfur dioxide releasing agent is uniformly distributed between the first base material and the second base material, the first base material and the second base material tightly adhere to each other under the action of the adhesive through heating and pressurizing, and the sulfur dioxide releasing agent tightly adheres to the adhesive through heating and pressurizing; the first base material is a breathable material; the sulfur dioxide releasing agent comprises one or more of sodium pyrosulfite, potassium metabisulfite, sodium hydrogen sulfite and potassiumhydrogen sulfite; the amount of sulfur dioxide in the laminate is 3-40 g per square meter. The laminate has is simple in process, the quality is easy to control, continuous production can be achieved,the production efficiency is high, the labor consumption is low, and the production cost is low.
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Description

technical field

[0001] The invention relates to the technical field of fruit preservation, and more specifically, relates to a sulfur dioxide preservation layer, a preparation method, and an application for fruit preservation. Background technique

[0002] Grape is one of the important fruit varieties in my country and is deeply loved by the people. According to statistics, by the end of 2015, China's grape cultivation area was close to 12 million mu, with an output of 13.669 million tons. Since 2011, the production of table grapes has ranked first in the world, and since 2014, the grape cultivation area has jumped to the second place in the world. , wine production ranks eighth in the world, China has become the world's largest producer of grapes. According to statistics, due to the impact of post-harvest transportation and preservation factors, the loss of grapes after harvest is as high as 15% to 25%.

[0003] At present, sulfur dioxide is widely used as a grape preserv...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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