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Photocatalytic self-controlled-atmosphere fruit and vegetable fresh-keeping bag

A fruit and vegetable fresh-keeping and photocatalytic technology, which is applied in the field of fruit and vegetable fresh-keeping bags and photocatalytic self-adjusting atmosphere fruit and vegetable fresh-keeping bags, can solve the problems of no effect of bacteria and microorganisms, easy breeding of bacteria, and troublesome production, so as to extend the fresh-keeping period of fruits and vegetables and solve the problem of catalytic Decreased effect, avoid dehydration and drying effect

Pending Publication Date: 2021-02-19
鲸果科技(杭州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN205240214U discloses a fresh-keeping bag for fruits. This fresh-keeping bag is divided into 5-layer structure, and two kinds of slow-release chemical preservatives are sandwiched in the middle of the structure. Not only the structure is complicated, but also the production is very troublesome.
CN201923431U discloses a fresh-keeping bag for fruits and vegetables, which consists of two layers, the inner water-absorbing layer is used to absorb the moisture released by the respiration of fruits and vegetables, and the outer water-permeable layer allows the moisture absorbed inside to be discharged in time. This structure has no effect on bacteria and microorganisms , especially in a humid environment, the bacteria inside it are very easy to breed

Method used

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  • Photocatalytic self-controlled-atmosphere fruit and vegetable fresh-keeping bag
  • Photocatalytic self-controlled-atmosphere fruit and vegetable fresh-keeping bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1) Preparation of waterproof functional layer:

[0029] Take polypropylene spun-bonded non-woven fabric as the main support layer 1, and then coat PP or PE on the side of the main support layer 1 close to the outside through the coating process to form a waterproof functional layer 3 to realize the single-sided surface of the main support layer 1. closed. The coating thickness is 0.03-0.05mm. 0.01-0.1% by weight of soluble polymers are added to the PP film or PE film. The soluble polymer is one or a combination of PEO or PVA.

[0030] Wherein, the bag body of the fresh-keeping bag is provided with a first thickening portion 11, and the first thickening portion 11 is located at the main support layer 1 in the middle and lower part of the bag body of the fresh-keeping bag. The bag body of the fresh-keeping bag is provided with a second thickening portion 12, and the second thickening portion 12 is located at the main support layer 1 on the left and right sides of the b...

Embodiment 2

[0037] 5 parts by weight of photocatalytic nano-titanium dioxide particles with a coating layer on the surface, 0.1 part of slow-release ethylene inhibitor and 5 parts of binder were weighed.

[0038] The cladding layer is montmorillonite. Preparation method: First, add 0.8ml of titanium tetrachloride to 40ml of hydrochloric acid solution with a concentration of 1mol / L and stir for 40min to obtain a light yellow transparent acidic sol of titanium dioxide, then add 1% sodium base to 25ml of acidic sol of titanium dioxide Montmorillonite solution (1g of montmorillonite was added to 50mL of deionized water and 50mL of absolute ethanol mixture and stirred for 10min) and stirred at 60°C for 4h, then centrifugally filtered, fully washed with deionized water for 3 times until no Cl - (using 1% AgNO, solution detection), and then roasting at 500° C. for 2 h to obtain nanometer titanium dioxide particles coated with montmorillonite.

[0039] Others are the same as embodiment one.

Embodiment 3

[0041] 9.5 parts by weight of photocatalytic nano-titanium dioxide particles with a coating layer on the surface, 0.18 parts of slow-release ethylene inhibitor and 9.5 parts of binder were weighed. Others are the same as embodiment one.

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Abstract

The invention discloses a photocatalytic self-controlled-atmosphere fruit and vegetable fresh-keeping bag. A bag body of the fresh-keeping bag comprises a main body supporting layer and a photocatalytic functional layer loaded with photocatalytic particles and an ethylene inhibitor, wherein the photocatalytic functional layer is arranged on one side, close to an inner cavity of the bag body, of the main body supporting layer; the fresh-keeping bag further comprises a waterproof functional layer; the waterproof functional layer is arranged on one side, close to the outside, of the main body supporting layer; the photocatalytic functional layer is formed by curing a photocatalytic functional coating; and the photocatalytic functional coating comprises the following components in parts by weight: 0.01-10 parts of photocatalytic nano titanium dioxide particles with coating layers on the surfaces, 0.001-0.2 part of a slow-release ethylene inhibitor and 0.001-10 parts of a binding agent. Thephotocatalytic self-controlled-atmosphere fruit and vegetable fresh-keeping bag is simple in structure and simple and convenient to produce; the maturity of fruits and vegetables can be effectively delayed and the aim of prolonging the fresh-keeping period of the fruits and vegetables is realized.

Description

【Technical field】 [0001] The invention relates to the technical field of fresh-keeping bags for fruits and vegetables, in particular to the technical field of photocatalytic self-adjusting fresh-keeping bags for fruits and vegetables. 【Background technique】 [0002] Fresh fruits and vegetables continue to undergo respiration after picking, oxidizing nutrients, releasing heat, and producing metabolites such as water, carbon dioxide, and ethylene. Under the environment of normal temperature and naked storage, the respiration rate of fruits and vegetables is strong, they are easy to age and lose water, and then lose their commercial value. [0003] Most of the existing fresh-keeping bags on the market are airtight fresh-keeping bags made of PE or PVC, which will form a closed environment, resulting in the inability to remove ethylene in time. Some fresh-keeping bags will apply chemical or biological preservatives inside, using chemical principles to kill and eliminate bacteria...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D30/08B65D81/20B65D33/02B65D85/34D06N3/00D06N3/04
CPCB65D31/04B65D81/2084B65D33/02B65D85/34D06N3/042D06N3/04D06N3/0011D06N3/0038D06N3/0043
Inventor 王晟丁文鹏甘振顺
Owner 鲸果科技(杭州)有限公司
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