25kg White Kraft Paper Bag for Cement Paper Bag with Valve

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♥ More Descriptions for Our Kraft paper bag :

1.Kraft paper bag is a packaging container which made from composite material, non-toxic, tasteless, pollution-free.

2.It meets up with Uses Electromagnet Protection Standard, has the characteristics of high strength and high environmental protection.

3.For packing pulverous or granular material such as black carbon, xanthan- gum, charcoal, cement etc.

Q: What are the requirements of the mark on the cement packing bag?: Cement gradeCement is divided into strength grade: 1, Portland cement strength grade is divided into 42.5, 42.5R, 52.5, 52.5R, 62.5, 62.5R six levels. 2, ordinary portland cement strength grade is divided into 42.5, 42.5R, 52.5, 52.5R four grades.3. The strength grades of slag Portland cement, volcanic ash Portland cement, fly ash Portland cement and composite Portland cement are divided into 32.5 grades: six, 32.5R, 42.5, 42.5R, 52.5 and 52.5R.

Q: How do you determine the 210mm*300mm package and determine its version and length?: Usually 1 meters, or 1 meters, 2 of the lengthWidth 300,3, leave 40 margin, roll on the design length of 940, version 420 weeks, diameter 133.75

Q: What material is the vacuum packing bag, please?: Of course, there is also room temperature, the choice of this temperature under the condition of the sterilization method is irradiation sterilization.

Q: The shelf life of the package usually takes several forms: Food soft packing materials mainly include polyethylene, polypropylene, polyester, polyamide and other polymer materials. These packing materials show great differences because of their molecular structure, forming process and additives. Therefore, for food manufacturers, choose a suitable packaging for their products is particularly important, otherwise there will be food safety issues.

Q: What is the difference between LDPE and PE-LD in a package?: LDPE is a low density polyethylene, environmental protection bag production is one of the raw materials, commonly known as low material, another raw material of HDPE is also called high pressure materials, packaging film, the two materials are mixed according to a certain proportion and then blowing, printing, cutting, packing bag made of,PE-LD is a common environmental protection mark printed on top of the packing bag, which indicates that the manufacturer is using an environmentally-friendly plastic bag.

Q: Which kind of transparent vacuum packing bag 16 wire and 24 wire?: Suitable for your product packaging, like food packaging, of course, thin, see the product, electronic or hardware thick, anti puncture, of course, does not necessarily have to be very thick, suitable for good

Q: What are the requirements of the gas in the package?: For example, some fruits, vegetables, air conditioning packaging, as well as cold meat also have the atmosphere of the tune (20% carbon dioxide, 80% oxygen), low temperature, preservation for about a week, to maintain fresh meat color, prevent browning!

Q: Is the color of cement packing bags related to cement?: Bags on both sides should be based on the varieties of cement with different color printing name and cement strength grade, Portland cement and ordinary portland cement Portland slag cement by using red, blue gray volcano; Portland cement and Portland fly-ash composite silicate cement by sleep and black or blue.

Q: What kind of packaging bag does polysilicon use?: Disposable material into a double-layer polyethylene bag, and then packing bags into the packing box or packaging barrel. Block polysilicon packaging specifications are net 5000g or 10000g per bag.