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What is Plug Wrap Paper?

Plug wrap paper is a special paper used for wrapping the outer layer of cigarette filters (filter rods). It tightly wraps the filter material (such as acetate fiber tow) and is one of the components of the cigarette filter assembly. In the name, "plug" refers to the filter element in the filter; "wrap" means wrapping. Therefore, simply speaking, plug wrap paper is the paper used to wrap the "filter element".

So, what types do plug wrap paper have?

Depending on whether it is breathable and the structural treatment method, plug wrap paper can be divided into the following 3 categories:

1. Non-porous

No micropores on the surface; suitable for cigarette products that do not require ventilation; relatively low cost.

2. Porous

Micropores are formed on the surface by laser drilling or chemical treatment; control the air dilution ratio to reduce tar and carbon monoxide output; commonly used in "low tar" or "light taste" cigarettes.

3. With Adsorbents

Contains an activated carbon particle layer; has the function of filtering harmful ingredients.

The more functional the plug wrap paper is, the higher the price is, and the more advanced or differentiated the type of cigarettes it is suitable for.

The common plug wrap paper on the market is mainly composed of the following ingredients:

1. Paper base: mainly bleached coniferous wood pulp, and some short fiber pulp can also be added;

2. Filler (such as calcium carbonate): improve opacity and pore structure;

3. Chemical additives: such as antistatic agents, surface treatment agents, adsorbents, etc.;

4. Micro-perforation: Some types will be laser microporous to control the air permeability.

What effects can plug wrap paper bring to cigarettes?

From the production process, the high-speed cigarette-making machine uses plug wrap paper to wrap the acetate fiber bundle filter element, which can shape it to a certain extent and facilitate the subsequent process. Some plug wrap papers will add a glue layer or have heat-sealing properties to help shape and fix the filter element.

Through the microporous structure on the surface, plug wrap paper can control the amount of air entering the cigarette, affecting the taste and tar content.

Some types of plug wrap paper affect the flow of smoke through physical or chemical means, adjust the cigarette draw resistance, and enhance the user's smoking experience.

What are the qualities of good plug wrap paper?

Firstly, the grammage of the paper usually ranges from 24 to 38 grams per square meter, depending on the type of cigarette product and the functional requirements. Secondly, air permeability is a key metric, which can be adjusted from 100 to 5000 cm³/min-cm² to suit the design requirements of different cigarettes in terms of ventilated dilution ratios. The paper must also have good wet strength to withstand the mechanical tension of high-speed splicers and prevent breakage or deformation. Surface finish is also important, as a smooth surface helps improve processing efficiency and prevents wrinkling or jamming. At the same time, plug wrap paper should be printable, so it can be used to print graphics, control lines, or other identifying information. Finally, it needs to have good adhesive properties and be compatible with a variety of glues or heat-sealers to ensure a strong, stable filter structure.

Please refer to and choose carefully before you buy any plug wrap paper.

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