Fruit and vegetable shelf small package bag film and manufacture method
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A packaging bag and shelf technology, applied in the field of small packaging bag film and production of fruit and vegetable shelves, can solve problems such as breakage, loss of water in fruit and vegetable products, and failure to achieve packaging of fruit and vegetable products, so as to reduce pollution, improve commodity value, and reduce wilting. The effect of dehydration
Inactive Publication Date: 2010-08-18
NAT ENG AN TECH RES CENT FOR PRESERVATION OF AGRI PROD TIANJIN
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[0002] At present, although some packaging products are used for fruits and vegetables during the shelf life, because they do not follow the physiological characteristics and appearance of the fruit and vegetable products after harvesting, different design and production methods should be used
Method used
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[0033] Example 1
[0034] Make functional masterbatch first:
[0035] 10% short-acting anti-fog function masterbatch (10 kg anti-fog material + 90 kg polyethylene resin)
[0036] 20% antibacterial function masterbatch (20kg antibacterial material + 80kg polyethylene resin)
[0037] Use the same direction parallel twin-screw extruder to complete, the operation process:
[0038] Masterbatch material
[0039] + Weighing→mixing→metering feeder→twin screw extruder→stretch and pelletizing→masterbatch products
[0040] Base resin
[0041] Then film and bag forming are carried out using Φ50mm single screw zipper bag blowing film machine and automatic bag making machine. The operation process:
[0059] 20% antibacterial function masterbatch 4~8kg
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[0060] Example 3:
[0061] The best formula is:
[0062] By weight:
[0063] Linear polyethylene resin (LLDPE) 48 kg
[0064] Low-density polyethylene resin (LDPE) 24 kg
[0065] Ethylene Vinyl Acetate (EVA) 15 kg
[0066] 10% short-acting anti-fog function masterbatch 8 kg
[0067] 20% antibacterial function masterbatch 5 kg.
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Abstract
The invention relates to a fruit and vegetable shelf small package bag film which is prepared from the following raw materials by weight parts: LLDPE (Linear Low Density Polyethylene), LDPE (Low Density Polyethylene), EVA (Ethylene/Vinyl Acetate), 10 percent of short-acting antifogging functional master batches and 20 percent of antimicrobial functional master batches. A manufacture method of the fruit and vegetable shelf small package bag film comprises the following steps of: weighing the raw materials according to the proportions; mixing by a plastic particle mixer; and blowing, molding and filming by adopting a self bag-sealing film-blowing machine with a clamping chain in the diameter of 50 mm. The product is suitable for packaging fruits and vegetables, such as grapes, cherries, hawkthorns, kiwifruits, apples, peppers, carrots, edible fungi, and the like, is non-toxic and transparent, and accords with the food safety standard. Because of indirect contact with the external environment (air, human contact, and the like) in the shelf life period, fruit and vegetable products packaged by the small bags can avoid the pollution of a certain harmful microorganisms (various bacteria) and lessen loss caused by withering dehydration, mechanical damage, and the like. Meanwhile, the invention has the effects of resisting aging and prolonging the shelf life and can improve the marketability of fruit and vegetable products by 2-5 days.
Description
technical field [0001] The invention belongs to fruit and vegetable packaging, in particular to a small packaging bag film for a fruit and vegetable shelf and a production method. Background technique [0002] At present, although some packaging products are used for fruits and vegetables during the shelf life, because they do not follow the physiological characteristics and appearance of the fruits and vegetables after harvesting, different design and production methods should be used for different fruits and vegetables. The purpose and effect of product packaging, resulting in loss of water or mechanical damage to fruit and vegetable products, so that the packaging is not firm and damaged, resulting in the need for secondary pollution of fruit and vegetable products. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a small packaging bag film for fruit and vegetable shelves and a production method thereof. To me...
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IPC IPC(8): C08L23/08C08L23/06C08L31/04B65D30/02
Inventor 陈丽马骏
Owner NAT ENG AN TECH RES CENT FOR PRESERVATION OF AGRI PROD TIANJIN
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