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Let's Make the Perfect Combination

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Let's Make the Perfect Combination CREATING TOMORROW’S SOLUTIONS PAPER & FILM I RELEASE COATINGS LET’s make THE PERFECT COMBINATION Optimize Your Products and Processes with DEHESIVE® Solutions 00 Applications Components and Product Groups Processing Service LET’S MAKE THE PERFECT COMBINATION What do release coatings and partnerships have in common? They are the out- come of a perfect combination. Behind DEHESIVE® release systems, you have a partner that optimizes your products and processes at every stage and ranks among the world's leading suppliers. As both a regional service provider and a global company, we can ensure the exact same quality – everywhere. When you choose DEHESIVE®, you have the perfect combination, because we are there wherever you need us. 2 Cost-efficient, rapid processing, film Three Product Groups Contents coating, graduated release values, DEHESIVE® release systems come high-speed coating and flexible for- in three product groups: solventless Applications mulations all call for a release coating systems, solvent-based systems and Diversity on paper and film 6 that can do something out of the emulsion systems. You can rely on Diverse range 8 ordinary. And that is precisely where obtaining excellent performance, high Overview of applications and benefits 12 DEHESIVE® release systems give you functionality and ease of processing the competitive edge. from all three groups. DEHESIVE® Components and Product Groups release systems undergo either plati- DEHESIVE® components 16 Clear Advantages num-catalyzed addition curing or tin- Solventless silicones 20 Release coatings consist of silicone catalyzed condensation curing to Solvent-based silicones 22 components developed specially by yield flexible release layers. Silicone emulsions 24 WACKER for the production of silicone release liners and release films. Their Flexible System Processing 28 chemical structure makes them ex- The DEHESIVE® product range is ceptionally good at releasing tacky designed for flexibility of formulation Service 32 substances. Substrates coated with and can therefore be tailored to the DEHESIVE® release systems will therefore coating process and the end appli- WACKER Worldwide 34 separate form the adhesive every time. cation. The four basic system compo- Furthermore, DEHESIVE® silicones also nents – polymer, crosslinker, catalyst exhibit excellent leveling during process- and controlled release additive – can ing, and rapid curing. be varied to create custom release forces for all kinds of applications. The system's reactivity can be adjusted to the desired curing temperature and production speed. 3 EXPECT MORE THAN THE ORDINAry What do you think of when you want your products to meet the most rigorous of demands? At WACKER, we think of outstanding release values and very good processing properties, along with easy handling and tests performed on different paper and film grades. With our DEHESIVE® release systems, we offer products that are extremely reliable and versatile, and meet the toughest of demands. 4 5 Applications DEHESIVE® RELEASE SYSTEMS ARE AS VARIED AS YOUR APPLICATIONS Applications Paper PCK High-density papers, such as glassine and Polyolefin coated kraft (PCK) is used for calandered kraft paper, make up the bulk applications requiring outstanding of applications and are the preferred basis dimensional stability, moisture resistance, for label rolls and adhesive tapes. Coated smooth surfaces and high tear strength. kraft paper is used mainly in label sheets One or both sides may be coated as and in graphics applications. required by the application, with polyethylene being the most common coating. This PCK Whether self-adhesive labels, graphics release liner is employed predominantly in applications or specialty medical industrial products, tapes, graphics applica- products, silicones provide the release tions and the medical sector. liners with the precise level of release and processing properties. And allow Demands on the DEHESIVE® Release System for maximum production speeds. Paper PCK • Rapid curing at 130 to 140 °C web • Rapid curing at 105 °C web High Speed for Release Liners temperature for minimal rewetting exit temperature Increased output, increased cost effective- and consistent good flatness • Outstanding anchorage even ness. WACKER’s high-speed DEHESIVE® • Outstanding anchorage in combination to PCK which has not been release systems offer you custom formu- with rapid crosslinkers for minimal corona treated lations for coating release liners at pro- catalyst consumption duction speeds of 1,000 m/min or more, • Good leveling and flow properties along with reliability and high efficiency. for good coverage combined with A very small quantity of an anti-mist addi- low coat weight tive helps to minimize misting. 6 Polypropylene (PP) films Polyester films Polyethylene (PE) films These generally serve as release films due to Polyester (PET) films generally serve as Polyethylene films are used typically for their mechanical strength and barrier proper- release films, because they have excellent release films on the basis of their relatively ties and because they are slightly more rigid mechanical and barrier properties, and low cost and their physical properties. and heat-resistant than polyethylene films. because they are smoother, more rigid and Additionally, they are available in low, medium PP release film is used mainly in labels and more heat-resistant than PE and PP films. and high gauges to meet various require- adhesive tapes. PET release films are used mainly in labels, ments on temperature resistance and shape adhesive tapes and medical applications. conformity. PE films are used primarily in sanitary products, in the construction sector and for insulation. Polypropylene (PP) films Polyester films Polyethylene (PE) films • Rapid curing at a dryer temperature • Rapid curing at a dryer temperature • Rapid curing at a dryer temperature of 105 °C of 135 °C of 100 °C • Outstanding silicone anchorage, • Outstanding silicone anchorage, even to • Outstanding silicone anchorage even to PP films which have not unprimed polyester films been corona treated By virtue of their diverse chemical Excellent Anchorage on that can be combined with the DEHESIVE® and physical properties, DEHESIVE® Filmic Substrates release system. Special DEHESIVE® release systems are able to meet all Film coating offers enormous market release systems have been developed kinds of specifications for coating potential. The no-label look of printed for rapid curing and good adhesion to release liners. WACKER continues clear film labels, for example, is a cost- polypropylene film. to further expand their large range effective alternative to direct printing of applications through its ongoing on packaging. Films vary in the demands research and development. they impose on silicone adhesion and curing temperature. For the right degree of anchorage to PET film, special adhe- sion promoters have been developed 7 Applications PRESSURE-SENSITIVE-ADHESIVE LABELs – THE MOST COMMON TYPE OF APPLICATION Applications By virtue of their diverse chemical ® Applications for Labels and physical properties, DEHESIVE • Product labels for foodstuffs, release coatings are able to meet beverages, hygiene, cosmetics, all kinds of specifications for coating and domestic appliances release liners and films. WACKER • Price labels continues to further expand its large • Graphic labels for advertising range of applications through its on- • Bar code labels for product identification going research and development. • Security labels • Labels for traffic signs PSA Labels – High Demands, • Decorative labels for the automotive Total Versatility and toy industries The requirements imposed on PSA labels • Smart labels vary considerably with the intended ap- Silicone Release Coating: The Properties plication and the production method. The • Good coverage of the substrate’s surface PSA Tapes different sizes and shapes of the labels, • Minimal silicone consumption • Carpet fixing & floor edge trims along with the different pressure-sensitive- • No matrix breaks at high die-cutting • Acoustic and anti-vibration tapes adhesives applied directly to the silicone speeds • Flying splices surface, call for a highly flexible system. • Smooth, pin-hole free surfaces • Fixing of point-of-sale materials Consequently, the demands on the • Good curing • Closure systems for envelopes silicone release coating are high. • No silicone migration • Tapes for display screens and • Custom controlled-release other electronic parts • Can be easily modified to suit the PSA • Reproducible release force • Release values that do not change during storage • Ease of processing under widely various production temperatures and speeds • Application and adhesion to different kinds of substrates 8 PRESSURE-SENSITIVE-ADHESIVE LABELs – THE MOST COMMON TYPE OF APPLICATION High speed and versatility: production of product labels, adhesive tapes and bar code labels. PSA Tapes – Custom Release Values The Properties There are adhesive tapes to suit every • Adjustable release application. The most popular is single- • Heat resistance sided, easy-to-tear packaging tape. • Easy unwinding of the tape as needed Additionally, major applications include • Different release force for each side of strong, heat-resistant tape, electrically double-sided tapes insulating tape, and double-sided PSA tapes. The properties expected of silicone release coatings are many and varied. 9 ApplicationsApplications OFTEN INVISIBLE, BUT INDISPENSABLE IN OUR DAILY LIVES
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