What is an opp bag and what is an OPP card head bag

OPP bag is stretch polypropylene, which belongs to a kind of plastic, in fact, it is a plastic bag, which is characterized by: easy to burn, flame situation: molten dripping, yellow on the top and blue on the bottom, less smoke after leaving the fire, continue to burn.

OPP is the abbreviation of BOPP, which can be seen everywhere in the market, and most of the general transparent packaging bags are made of OPP material, which is easy to print and has good performance, and is now the most widely used.

The difference between PP bag and OPP bag: [PP] The so-called PP bag is a plastic bag made of polypropylene as the material, which generally adopts color printing, offset printing process, bright color, generally more woven bags, and PP bags are stretch polypropylene plastics, which are a kind of thermoplastics. It is non-toxic, odorless, and has a smooth and transparent surface.

It is easy to burn, the flame situation is molten and dripping, yellow on the top and blue on the bottom, the smoke is less after the fire, and it continues to burn, and it is mostly used in the packaging of cosmetics, food, toys, clothing, stationery, electronics, hardware products and other industries. The color is transparent, the quality is good, the toughness is good, because of its hard and brittle material, it is only suitable for packaging and is not suitable for load-bearing. 【OPP】OPP is a directional stretch polypropylene film, with high brightness and brittleness, etc., the side of the edge is folded in half by the OPP monolith, and the self-adhesive seal is glued at the opening tongue, and the tongue can be folded in half after the protective skin is peeled off by the fashion into the product, which is easy to use, beautiful and generous, and is widely used in clothing, food, printing, stationery, cosmetics, paper and other industries.

It can also print various patterns and punch butterfly holes and airplane holes according to customer needs. 【Difference】Sliding OPP film has higher tensile resistance, stiffness, transparency, gloss, printing performance and so on than ordinary PP film. **Naturally, it should be higher, and the specifications are different**.

The sealing performance of OPP film is more than double that of traditional film, so that its products are more moisturizing, fresh, and have a longer storage time.

1. The material is different, PE is polyethylene, OPP is polypropylene.

2. The appearance is different, one is translucent is PE, and the other is very transparent is OPP.

3. The feel is different, PE is softer and tougher, and it feels a little astringent to the touch, and OPP is brittle and smooth.

First of all, the materials used are different!

You don't have to look at your hands to get the bag, the most obvious feature:

PE, slippery, tough, waxy, and less transparent than OPP.

OPP, hard, brittle, the most transparent, easy to break with a small opening.

The difference between PP bag and OPP bag: PP plastic bag belongs to the more transparent kind of plastic bag in blown film. Generally, it is used in the outer packaging of the product.

The texture of the opp bag is brittle and hard, the transparency is high, it is difficult to tear if there is no gap, but there is a little gap without any effort to tear it, the processing technology is made of a hot cutting and sealing machine, if the edge of the cutting and sealing is not adjusted when the machine is not adjusted, or when there is a problem with the raw materials, it is easy to burst, but if the general items are not specially requested, there is generally no problem, there are two forms of cutting and sealing, one is the line line cutting sealing, and the other is the explosion-proof edge cutting and sealing, In fact, the two ways of production are the same, but it is the reason for the knife and the reverse knife, the process flow of opp plastic bag, generally speaking, first to cut the appropriate specifications, and then there is a printing to do a printing, if there is no printing, directly fold the edge, add viscose and white pearlescent film according to the requirements of the order, and then place it for a period of time, you can directly cut and seal, and then punch according to the customer's requirements, and then package and ship. The scope of application of OPP plastic bags such as greeting cards, jewelry, leather goods, clothing, etc. can often see the traces of OPP bags. Hengxingyuan answers for you!

The card head bag is a hot seam line on the top of the bag, which divides the bag into two parts: the card head and the product bag, and the small commodity packaging bag made of it, the card head part can be printed or transparent or not completely sealed, and the paper card is placed by itself and then glued by itself.

What is an opp bag.

English: what's the opp bag?

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