Tuesday, May 20, 2014

Blister Films and Foils

Blister pack is a term for several types of pre-formed plastic packaging used for small consumer goods, foods, and for pharmaceuticals. The primary component of a blister pack is a cavity or pocket made from a formable web, usually a thermoformed plastic. This usually has a backing of paperboard or a lidding seal of aluminium foil or plastic. A blister that folds onto itself is often called a clamshell. Blister packs are useful for protecting products against external factors, such as humidity and contamination for extended periods of time. Opaque blisters also protect light-sensitive products against UV rays. Blister packs are used to package products such as toys, hardware, medication, etc...
Many blister packaging machines use heat and pressure via a die to form the cavity or pocket from a roll or sheet of plastic. In recent years, improvements in cold forming, specifically allowing steeper depth/angles during forming, this minimizes the amount of material used for each cavity.

Blister packs are commonly used as unit-dose packaging for pharmaceutical tablets, capsules or lozenges. Blister packs can provide barrier protection for shelf life requirements, and a degree of tamper resistance. In the USA, blister packs are mainly used for packing physician samples of drug products, or for Over The Counter (OTC) products in the pharmacy. In other parts of the world, blister packs are the main packaging type since pharmacy dispensing and re-packaging are not common



Wednesday, May 14, 2014

Best Casting Polypropylene film

CPP film: CastingPolypropylene film is a kind of un oriented film. Compared with BOPP, it has property of super excellent flexibility and high sealing strength .It can be boiled in high temperature to disinfect for long time storage. It is mainly used for package of dry fruit, sea food, salted meat products, fruit jam etc to keep those food fresh for longer time.
General Purpose CPP film

Application: A thermal sealing material; can be laminated with BOPPBOPET film or direct packing after printing; often used as the package of foods, living appliances and so on.

Performance: High transparency; high stiffness; low friction coefficient, excellent thermal sealing performance.

Thickness15-200 micron

Structure: A CO-PP or HO-PP;B HO-PP; C HO-PP or CO-PP


Application: Can be laminated with BOPPBOPA film after metalized, used for packaging the tea, biscuit, fried food, pickle and so on.

Performance:

High aluminium adhesive; high gloss; low haze; low thermal sealing temperature; high thermal sealing strength; excellent moisture proof.
Thickness20-50 micron

Structure:  A CO-PP;B HO-PP; C CO-PE




Monday, May 5, 2014

Best Plastic Embossed Film From Hitech Packaging

Definition of embossing:  In the broadest sense, it means to change a surface from flat to shaped, so that there are regions that are raised up from a background.  This meaning would seem to encompass areas that are normally not called embossing:  carving figures into the face of a mountain (like Mt Rushmore), or engraving a steel block.  On this website, I use the word "embossing" only as it applies to thin and malleable materials.  Since the opposing surfaces of a thin material are very close to each other, each raised area on one surface is matched by a recessed area on the the opposite side, and vice versa.  One exception to this is sometimes called "pattern pressing" or "blind embossing".  This occurs when areas of one surface are recessed while the opposite side remains flat, causing the material to become thinner in those areas.  This is typical when embossing leather, for example.
Materials that are embossed:  Just about anything that is thin, flat, and malleable can be embossed.  This includes paper, plastic film, metal foil, nonwovens, textile fabric, leather, and even glass.  These materials may be provided in continuous form (like paper unwinding from a roll), or in discrete form (cut into individual sheets before embossing).
Purpose of embossing:  Sometimes embossing is done for purely decorative reasons.  However, in most cases, the purpose of embossing is to change the physical characteristics of the material.  Embossing a metal foil with a fine texture pattern makes it much easier to handle the foil within the machine that wraps it around a piece of chewing gum.  Embossing a plastic film changes its elastic properties dramatically.  Embossing tissue paper improves absorbency and flexibility, but almost always at the expense of strength.  Embossing increases the overall thickness of the material.