Product construction

Release papers and films are not only protection of adhesive layer, but also have an important part in quality and function of the product itself. With variations of surface characteristics, they are also used for resin film foaming applications and so forth.

Product construction

  • Release paper
  • Release film

There are two types of base materials: a paper and a film. For each product, a release agent is coated on the respective side of the base material. In general, a barrier layer is pre-coated for release paper in order to prevent the release agent soaking into the base paper.

Classification of release agents (silicone and little-silicone)

The release agents that are coated on the release papers and film are broadly classified into silicone and little-silicone categories. There have been growing needs for little-silicone release agents in various industry segments including the electronic components industry.

Silicone

Release agents used for general adhesive products. LINTEC has an abundant variety of formulations based on long-time experience accumulated in the release papers and film industry.

Little-silicone

Used mainly for electronic device applications where silicone can be detrimental.
Also, fluorine release agent is available for silicone adhesives. LINTEC will offer a broad range of little-silicone release agent products ranging from light to heavy release property to cover the growing needs in the future.

Various release agents specially customized for your needs are available.

Types and characteristics of release papers and films

LINTEC takes advantage of manufacturing from the base paper, release papers and films, and even adhesive materials by own productions as total technology, which enables to produce right release property to meet customer’s requirement.Representative compositions and features are explained here.

Compositions and features of the representative release papers

  • Slide to view.
Types Structure Property
Glassine direct type Heat resistance and optical transparency
Barrier resin laminated type Waterproof property, and selective surface property*1
Barrier resin coated type Heat resistance and dimensional stability
Little-silicone migration, resin coatability
Curl prevention type Curl prevention, and selective surface properties*1
  1. *1When PE is selected for barrier layer, surface properties can be selected from super mirror, semi-mirror and matte type.
  • Printing is possible for all types of release paper. In addition to this, LINTEC will propose various combinations upon requests.
  • Types and properties of base paper

LINTEC, being engaged in the production of base paper by own machinery, can propose wide selections of base paper and offers a suitable one for release paper along with applications and demanded function.

  • Slide to view.
Types Properties
High quality paper
  • High in cushioning characteristics
  • High in air permeability
Glassine paper
  • High in bulk density and low in air permeability
  • High in optical transparency
  • High resistance for solvent (direct coating of silicone is possible.)
  • High in smoothness
Kraft paper
  • High in strength
  • Most suitable for packaging application

Types and properties of the representative release films

  • Slide to view.
Types Structure Property
Silicone type Cleanliness

Cleanliness and little silicone
migration
Resin coatability

Anchor coat type

Cleanliness, prevention of static charge, improvement of adhesion of release agent etc.

  • LINTEC release films are manufactured in clean environment. Each type of product permits printing on the release film. LINTEC proposes various combinations besides the above.

Release speed and release force

The resistance, occurred when adhesive surface of a sticker or label separates from release papers or films, is called release force. The unit is expressed in (N/m) etc, and it is generally measured under 180° tape peel condition with range from low speed peeling at 0.3m/min to high speed peeling at 100m/min.

Release force is generally said to be dependent on the peeling speed, and it tends to be heavier as the peeling speed increases. However, LINTEC can propose suitable products, such as those that are less dependent on the peeling rate, from among the ample formulations of release agents.

Measurement of release force (180°tape peel)

Contact Us

For product inquiries, please use the entry form or contact the following address.

LINTEC Corporation Converted Products Operations
PHONE: +81-3-3868-7721
FAX: +81-3-3868-7728

2-1-2 Koraku, Bunkyo-ku, Tokyo 112-0004, Japan

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