Q:Should the food packaging bags be labeled with QS markers?

Forty-seventh of the 79 orders of the State Administration of food: forty-seventh the implementation of food quality and safety market access system, must print on their packages or marks before (paste) QS logo. No QS mark shall not be sold out of the factory.

Q:Duck sauce made of pure aluminum foil vacuum packaging bag or transparent plastic?

A good vacuum packing is recommended.

Q:What kind of material is the food packing bag in general?

Are usually packaged in composite bags, composite materials, polyethylene (PE), polypropylene, nylon, polyester. These are the main membranes. The film is made of stretch film and blow film.

Q:What kind of material is the express package on the market now? It's dark in the outer grey.

The materials used for express bags are generally HD-PE, which can be recycled and can be re packed into bags

Q:Why are some teas not vacuum packed?

In order to ensure the quality of tea and pure taste, natural, free from external conditions, but also in order to enhance the image of tea, enhance the value of goods, the exquisite packaging of tea is the trend of the times. These unsuitable vacuum packed tea, such as green tea and Longjing, tend to be easily squeezed and packed and can be packed in vacuum packed with nitrogen. Brick tea packaging paper bag packaging form form West Lake Longjing Tea vacuum tea vacuum packing inflatable packaging is a mixture of gases in vacuum and then filled with nitrogen, carbon dioxide and other two or three kinds of single gas or gas. Nitrogen is an inert gas with a density close to the air. It acts as a filling, keeping positive pressure in the bag and protecting the leaves from crushing by atmospheric pressure. Carbon dioxide can make tea into sleep, and maintain the quality of tea.

Q:What about the table of nutrition values on food packages?

Total fatThis is in total fat as a unit, high fat food generally high calories. The lower the fat content, the healthier the food. As a rule, choose as much as 100 grams of food with less than 10 grams of fat. saturated fatSaturated fats are found in meats, poultry, fish, baked goods and tropical oils. They increase the risk of heart disease. Foods with the lowest levels of saturated fat should be selected. It should also be noted that in some food labels, trans fats - - for the heart, trans fats are more dangerous than saturated fats. Total CarbohydrateThis is the total number of carbohydrates per serving, in grams. It contains sugars and slow digestion carbohydrates. You may also see information about the glycemic index (GI). Compared with high GI foods, GI's blood sugar levels increase more slowly after lower food intake. sugarThese include natural sugars and added sugars, which are listed individually as part of the total carbohydrate component. In general, it is better to choose foods with lower sugar content. sodiumProcessed foods may have a large amount of sodium. If possible, choose foods with lower sodium content, that is, less than 400 milligrams per 100 grams of sodium. Other food information

Q:The difference between a vacuum and a vacuum in a food package

Vacuum and vacuum is actually a concept, the operation is generally called vacuum, are placed in the vacuum food packaging machine to extract air package a food packaging technology, will conduct disinfection operation in food bagging before or after bagging, its essence is no different.

Q:What does "13 silk" in vacuum packing bag mean?

The wire unit is 1/1000 points, the general use vernier caliper, micrometer, gauge with smaller, can be measured. According to the determination, a hair diameter of about five to seven silk (ie 0.05 ~ 0.07), "a trace" is a very small unit. The wire is called the habit of CMM, and other transformation between the length of the unit is:1 mm = 100 wire (tract)1 =10 =0.1 decimillimeter centimillimeter micrometer wire =1 =0.01 mm =0.001 cm =0.00001 meters

Q:How about the material difference of food packaging bag?

Reason: PE has better heat sealing property, which is easy to sealPA has better printability and is used in the outer layer to print beautiful picturesPVDC EVOH, good separation performance, prevent oxidation. The film closed light is good, not easy to see the light of the product is appropriate.Specific more professional, no longer introduce one by one

Q:What's the packing of the air in the food package?

At present, there are many inflatable packaging name, nitrogen packaging, air conditioning packaging. These are the use of a gas replacement method, to achieve the effect of food insurance. Food is too afraid of oxygen, excessive exposure, long exposure to oxygen, may occur oxidation, metamorphism and other issues. Filling the package with a certain amount of inert gas will effectively prolong the shelf life of the food.