We must appreciate that plastics are unique, innovative, and versatile materials that can contribute to protecting the environment when used responsibly. The key is to recognize that there is no silver bullet to sustainability, only a combination of well-designed strategies striving for a more sustainable future.
| Emulsion %Chemistry | Nature | Suitable substrates | Hydrolysis resistant | Price |
|---|---|---|---|---|
| Acrylic | Amorphous | Paper, film | Yes | Average |
| Polyurethane Dispersion | Semi crystalline | Paper, film, foil | Yes | High |
| Ethylene Acrylic Acid | Semi crystalline | Paper, film, foil | Yes | High |
| Ethylene vinyl acetate | Semi crystalline | Paper, film, foil | No | Average |
| Polyvinyl acetate | Amorphous | Paper | No | Low |
Water based chemistries often have the capacity to provide coatings with lower heat activation temperatures – because of ease in formulation modifications.
Texobond BL-1020 is a heat seal blister coating for bonding PET, PVC, APET and PS. Surface chemistry and glass transition temperature are the key parameters which make Texobond BL-1020 a high performing material. It can be used for both 'in-line' and 'off-line' processes.
Texobond F107 is a water-based heat seal coating for sealing aluminum foils. Unlike conventional heat seal coatings, Texobond F107 has excellent adhesion to metal surface which avoids ‘stringing’. The coating has very good antiblocking properties and low coefficient of friction.
Texcryl HS-2028 is a water-based coating used for heat sealing applications in paper and similar porous substrate materials. Texcryl HS-2028 is tack free when dry and activates only on providing heat.
TEM images (a) Interaction between two shells; (b) Fusion of core
Tested with Kit Test solution 12 when dropped on folds of the paper
The water rolling-off angle: figs. (1–4) are images of a 5 μl water droplet being placed on the tilted surface of coated paper. The water droplet began to roll off the superhydrophobic paper surface as the tilting angle of the surface increased.
Roll to roll process of coating application on paper
| Moisture Vapor Transmittance Resistance | 0 - 5 cm3.um/m2.day.atm |
| Biodegradability | 20 – 100 cPs |
| Heat Activation Temperature | 90oC |
| Repulpability | 99.7% |
To verify repulpability, alkali dissociation and dispersibility were evaluated, and recyclability was confirmed. Repulpability refers to the characteristic by which, during repulping of used paper, the materials coated on the paper do not remain attached to the pulp but completely dissolve in water.
Biodegradability evaluation was confirmed by lab scale simulated industrial composting conditions.
Texcryl P-851 is an acrylic based barrier coating imparting both water and OGR properties. It does not soften upon heating, preventing blocking and suitable for heat stamping processes. Being wax free it has good gluing ability and is repulpable too. Application areas include paper plates, bowls, cartons, take-out boxes and like.
Texobond P1100 is a water-based heat seal coating, having both hydrophobic and oleophobic characteristics. It is designed to replace wax or polyethylene coatings on paper substrates. It provides heat sealing for both face-face and face-nonface bonding. Application areas include paper cup stock, paper cutleries, food packaging and like.
Texsil CWR is a nano-silicone coating solution for paper surfaces for imparting superhydrophobicity and maintaining its original look and texture. The product is PFAS free and not a health hazard, ready to use by spraying or padding processes. Texsil CWR is odor free after drying and has long lasting properties.
