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Water Resistance Kraft Bubble Mailers Shipping Envelopes Size 1 / 7.25"X12"

Water Resistance Kraft Bubble Mailers Shipping Envelopes Size 1 / 7.25"X12"

kraft bubble envelopes

kraft padded mailers

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Product Details
Poly Bubble,Kraft Paper
Mailing Ad Packaging
Strong Adhesive,Recyclable
Product Description

 Commercial Kraft Bubble Mailers Padded Envelopes Size 1 / 7.25"X12"


Also named: kraft paper envelope / express bag
Material: kraft paper /PE
Structure: the outer layer is kraft paper (white, yellow, or native), lined with bubble film
Effect: the outer layer of kraft paper (white, yellow or grey) smooth surface, easy writing; can not infringe intellectual property rights in the case of different printing patterns, trademarks and text according to customer requirements; lined with bubble film, buffer shock, to prevent the goods due to pressure, touch, drop and damage; do not use any adhesive each layer of material, non-toxic environmental protection; self-adhesive envelope design, safe and convenient;




Durability and outstanding tear strength.

High-slip film material allows faster, easier product insert.


Clean ,safe and easy to use, the kraft surface is easy for writing

Lightweight and small volume for postage savings



Data Sheet
Materials Classification : AL
Melting Point : 660℃
Working Temperature : -180~240℃
Material Density : 2.7g/cm³
Conventional Size : 7.25"X12" #1
Sample Color : Gray
Basic Material : Aluminum Foil
Protruding Characteristics : Barrier
Application Industry : Promotion
Shape Style : Drawstring
Materials introduction
Aluminum is a silvery white light metal. Ductility. The products are usually columnar, rod, flake, foil, powder, ribbon and filiform. A layer of oxide film to prevent metal corrosion can be formed in humid air. The acid treated aluminum powder heated in the air can burn violently and emit a dazzling white flame. Soluble in dilute sulfuric acid, dilute nitric acid, hydrochloric acid, sodium hydroxide and potassium hydroxide solution, insoluble in water, but can react with hot water slowly to produce aluminum hydroxide, the relative density of 2.70, elastic modulus 70Gpa, Poisson's ratio 0.33. Melting point 660. Boiling point 2327. It is widely used for its light, good conductivity and thermal conductivity, high reflectivity and oxidation resistance. Do the daily dish aluminum is usually called "steel" or "steel". The thermal expansion coefficient of Al at (25) Shi Wen is 0.0000236mm/ C or 23.6ppm*k-1.

Water Resistance Kraft Bubble Mailers Shipping Envelopes Size 1 / 7.25"X12" 0Water Resistance Kraft Bubble Mailers Shipping Envelopes Size 1 / 7.25"X12" 1

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