New UV adhesive series, the crystal-clear solution for rational and safe bonding, even for special application such as a laminating adhesive to manufacture glass touch panels.
For cleaning SMD stencils, water-based formulations with two active cleaning phases have proved to be best. KIWO uses mixtures which are hazard-free, offering highest work and product safety and simplifying storage, eliminating the need for separate dangerous goods storage. More information
Depending on the printing media in use, both water and solvent based cleaning products are used for cleaning the undersides of SMD stencils in the printing machine. More Information
This newly developed and widely used product effectively removes colophony, fluxing agents and degassing residue from printed circuit boards without attacking surfaces. More Information
Thanks to further developments in quality, screenprintable pressure-sensitive adhesives have made their mark in many industrial applications. Which screenprintable pressure-sensitive adhesives are available on the market and where are their preferred areas of application?
For processing liquid adhesives, the screen printing method has established itself alongside the conventional systems like curtain coating, spraying, anilox and knife. The specific advantages of using the screenprinting method for processing adhesives was already recognised in the early 1970’s. Today pressure-sensitive adhesives, which have been printed on substrates can be found in many industrial areas of application, as for example, the automotive industry, household white goods and the electronic industry. More can be found in the production of optical displays as well as the advertising and sign making industry.
Dual-cure diazo photoemulsion
AZOCOL® Z 140 is used for the production of high quality screen printing stencils. Due to its excellent imaging properties such as resolution, sharp print shoulder and tonal value replication, it is ideal for printing finest half-tones. Whatever you are printing - glass, membrane switches or graphics - AZOCOL Z 140 is a genuine all-rounder.
KISSEL + WOLF GmbH, market leading manufacturer of screenable adhesives, now offers KIWOPRINT UV 92, which is a new UV pressure-sensitive adhesive for decorative foils, front panels and visual instrument panels.
Due to its good tack properties, it is also suitable for labels and decals.
Typical applications include:
The adhesive’s fast curing is a special advantage giving short cycle times.
Dr. Roland Studenroth, KISSEL + WOLF GmbH
In the course of the 80s, a new technology from Japan edged its way into the screenprinting market. This was the technology of single-component emulsions based on SBQ. The abbreviation SBQ is derived from the product name "Stilbenium quarternized" and specifically means that a water-soluble, UV light-sensitive stilbene group is chemically bonded with the polyvinyl alcohol (PVA) contained in emulsions (see Figure 1), so that for light sensitizing a second component, such as diazo is no longer needed. Because of it being a single-component product, the SBQ emulsion technology first experienced a boom, but also contributed at the same time to the perfectioning of the alternative dual-cure diazo technology. Today both technologies are firmly established in the market and complement each other, i.e. there is dual-cure technology also found in SBQ-sensitized products and to achieve specific properties, SBQ emulsions can be additionally mixed with diazo compounds.