Pressure sensitive adhesives with dramatically reduces odor

VOCs (volatile organic compounds) are said to be the cause of sick building syndrome and chemical sensitivity, so low VOCs are essential, especially for interior material applications.
Furthermore, with the development of EVs and self-driving technology, automobile interiors are increasingly becoming "living spaces," and demand for low-odor, low-VOC materials is increasing in search of a more comfortable environment. The need for low odor and low VOC products has become a global trend.
Utilizing our proprietary technology based on our experience in interior pressure sensitive adhesives, we have developed a low-odor, low-VOC pressure sensitive adhesives suitable for creating a comfortable indoor environment.

• About odors and VOCs
• New product EXK 21-046

About odors and VOCs

One of the causes of unpleasant odors such as tapes and adhesives comes from VOC components.
Odor can be suppressed by reducing the VOC contained in pressure sensitive adhesives as much as possible.

• VOC: Volatile Organic Compounds
• There are individual differences in how odors are perceived.

Odor and VOC are correlated, so it is possible to achieve both control and reduction effects.

VOC (13 substances and T-VOC)

• VOC
  There are approximately 200 types of volatile organic compounds.
  The Ministry of Health, Labor and Welfare has provided guideline values for indoor concentrations for 13 of these substances.
• T-VOC
  This refers to the concentration level of a mixture of multiple VOCs, and the Ministry of Health, Labor and Welfare has indicated a provisional target value for indoor concentration.

* Source: Ministry of Health, Labor and Welfare “Indoor concentration guideline values for chemical substances in the indoor air” (January 17, 2019)

New product EXK 21-046

Although conventional low-VOC pressure sensitive adhesives can reduce 13 VOC substances, a small amount of T-VOC remains after the drying process, causing odor.
Therefore, we selected a material that does not easily remain in the paint film, and by making full use of our proprietary polymerization and compounding technology, we succeeded in reducing T-VOC and odor without sacrificing conventional adhesive properties by controlling viscoelasticity.

T-VOC content and odor comparison data

T-VOC

odor

• Composition: pressure sensitive adhesives 65g/m2 / Non-woven fabric / pressure sensitive adhesives 65g/m2
• After drying at 105℃ for 2 minutes and curing for 7 days at 23℃ and 50%RH.

Adhesive performance

A low-odor, low-VOC pressure sensitive adhesives that is ideal for home and automobile interior applications.

• Composition: pressure sensitive adhesives 65g/m2 / Non-woven fabric / pressure sensitive adhesives 65g/m2
• After drying at 105℃ for 2 minutes and curing for 7 days at 23℃ and 50%RH.
• z: zipping