Plastic Shopping Bags With Handles , Custom Plastic Merchandise
Bags | Speciallity | China's packaging industry has been used for more than 20 years,
and has completed the development path of developed countries in
the past 40 years. Basically, it changed the situation of
"first-class products, second level packaging and three flow
prices". The packaging industry has developed from a scattered and
backward industry to a complete and complete industrial system with
a certain modern technical equipment and a relatively complete
classification. The remarkable characteristics of the packaging
industry today are the internationalization of the packaging
market, the globalization of the packaging industry and the
interdependence and interdependence of the development of packaging
industry in all countries.
In the Western Zhou Dynasty, the engraved technology combined with
the ancient smelting technology, the appearance and development of
the cast or engraved bronze ware. The end of Qin, stone wind
becomes more and more popular, which makes this ancient carving
technology leap development from two aspects of quality and
quantity, and seal the precedent. It has made an important
contribution to the development of Chinese cultural undertakings.
At the same time, it also creates opportunities and conditions for
the further development and improvement of manual carving
technology. A lute and India since the Qin and Han brick mold,
widely used and extended the hand carved paper copy operation
belongs to the field of application. As for the rubbing and
operation and further development of the textile printing, the
essence is in the shape of printing. | | | | Brief Introduction | Custom Printed Packaging
Now a day, the Custom Printed Packaging is very popular all over
the world,it's use colorful print technology on the suraface of the
packing materials, In the same pages with different color version
printing, color picture effect will reach text, picture, etc. the
plate, ink, pressure and other processes, so that the ink
transferred to the surface of paper, textiles, leather and other
materials, bulk copy the content of technology. Now color printing
generally uses flat printing.
Color printing is a direct or indirect way to make images or text
originals as a printing plate, coated with ink on the printing ink,
the ink is transferred to the paper or other substrates by
pressure, and a large number of rapid replication of an industrial
engineering.
Now color printing generally uses flat printing.
Lithographic printing is sometimes called chemical printing, which
means that the printed image is in the same plane as the printing
plate. It is based on "water immiscible" principle of printing.
This type of printing is done by mechanical or manual means on the
stone or metal surface, and then the surface of the chemical
treatment, so that the image part of the ink, while the other blank
part is not ink. When printing, only the ink image part is
transferred to the paper to form the imprinting. Photographic
printing, photocopying and printing are lithographic printing. | | | | Data Sheet | | Optional Materials: | AL | | Melting Point : | 660℃ | | Working Temperature : | -180~240℃ | | Material Density : | 2.7g/cm³ | | Common Size : | 10.5" x 16" #5 | | Sample Color : | Brown | | Basic Material : | Aluminum | | Protruding Characteristics : | Disposable | | Typical Application Industry : | Grocery | | Shape Style : | Heat Seal | | Classification: | Custom Printed Packaging Bags | | | | | 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. |
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