Insect-preventing air-conditioning preservative film for food
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A modified atmosphere fresh-keeping and insect-proof technology, which is applied in the direction of preserving seeds with a protective coating, application, and household appliances, etc., can solve problems such as food pollution, complex production process of composite plastic film, and food quality decline, and is easy to popularize , Repellent effect is remarkable, and the production process is simple
Inactive Publication Date: 2009-08-12
天津市食品加工工程中心 +1
View PDF0 Cites 6 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
For example, the production process of composite plastic film is complicated and the cost is high, and insecticides such as storage grain safety are directly mixed into the grain, which has certain pollution to the grain. Residues also have certain negative effects on human health
Method used
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
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
[0020] The composition formula is: by weight ratio
[0021] Fenitrothion 2 kg,
[0022] Stored grain safety 2 kg,
[0023] 4 kg pepper dextrin,
[0024] Polyethylene wax 1.5 kg,
[0025] Antistatic agent 0.8 kg,
[0026] Opening agent 0.5 kg,
[0027] Calcium carbonate 2 kg,
[0028] Low-density polyethylene resin 75 kg.
[0029] Preparation method According to the formula, put fenitrothion, storage grain safety, pepper dextrin and masterbatch in the mixer, the speed is 150r / min, the temperature is 65°C, add PE wax with a molecular weight of 2000, mix and disperse for 20 minutes before making Prepare raw material I; put calcium carbonate with a particle size of 0.1-1um in a mixer at a rotating speed of...
example 2
[0032] Example 2: The composition formula is:
[0033] Fenitrothion 3 kg,
[0034] Stored grain safety 3 kg,
[0035] Pepper dextrin 5 kg,
[0036] Polyethylene wax 2 kg,
[0037] Antistatic agent 1 kg,
[0038] Opening agent 0.7 kg,
[0039] Calcium carbonate 3 kg,
[0040] LDPE resin 90 kg.
example 3
[0041] Example 3: The composition formula is:
[0042] Fenitrothion 2.5 kg,
[0043] Stored grain safety 2.5 kg,
[0044] Pepper dextrin 4.5 kg,
[0045] Polyethylene wax 1.8 kg,
[0046] Antistatic agent 0.9 catties,
[0047] Opening agent 0.6 catties,
[0048] Calcium carbonate 2.5,
[0049] Low-density polyethylene resin 80 catties.
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
Login to view more
PUM
Login to view more
Abstract
A vermin-proof modified atmosphere preservative film for foodstuff is prepared by the following steps: by taking sumithion, Chuliangan and pepper dextrin, polyethylene wax, an antistatic agent, a lubricant, calcium carbonate, a titanate coupling agent, a plasticizer and low density polyethylene resin as raw materials; coating and dispersing, melt blending, extruding and granulating to prepare vermifugal master batches; and then adding the vermifugal master batches to the low density polyethylene resin at a ratio of 10-15% for film blowing and forming. The film can be used for producing bags with certain specifications for storing foodstuff; due to slow release of vermicide in the film and combination with spontaneous modified atmosphere physical vermin-proof property of foodstuff respiration, compared with the low density polyethylene film with the same thickness, the film has obvious repelling effect on imago of stored grain pests such as maize weevil, lesser grain borer and confused flour beetle; no residue of the vermicide is detected after packaging rice, maize and wheat for 3 months, the film has no food safety problem as a packaging material for food and is a common, safe, high-efficiency and low cost vermin-proof storage manner for foodstuff.
Description
technical field [0001] The invention belongs to a preparation method of a novel functional plastic packaging film, in particular to a grain insect-proof modified-atmosphere preservative film combined with an insect-repelling function and a spontaneous modified atmosphere of grain and a preparation method thereof. Background technique [0002] In the process of grain storage, grain is often harmed by stored grain pests, and the loss is quite serious. The annual loss caused by pests in our country is about 3%-5% of the total grain output, and the stored grain in some underdeveloped areas can cause 10%-40% loss due to pests every year. Stored grain pests not only eat grains and increase grain loss, but also reduce the edible quality and nutritional value of grains. In recent years, countries all over the world have attached great importance to the control of stored grain pests. Great progress has been made in the research and development of new stored grain insecticides, grai...
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
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more