KAVOLAB

Textile Chemical Auxiliaries

Thanks to ZAITEX's experience and knowledge of the chemical nature of dyes, we provide best practices for various materials by supplying ZAITEX products to fully meet our customers' needs.

"We supply chemicals, dyes & additives and develop their best industrial application. Our aim is to satisfy Customers’ goals taking advantage of our best features: knowledge, reliability, innovation, social & environmental responsability."

ZAITEX SpA

EB Process: Cost-effective solution for ecological bleaching

Raw material costs are undoubtedly out of control, in every sector or market. One of the most energy-intensive process in preparation of cotton for the dyeing is the bleaching, which is carried out in over-flow, jet or autoclave machines: optimizing such crucial step may bring a dramatic overall cost reduction.
By following such purpose, ZAITEX has developed a series of auxiliaries and fine-tuned the EB process – Ecological Bleaching – a bleaching method based on an enzymatic system, in conditions of low temperature (starting from 75°C) and neutral final pH, for discontinuous bleaching with hydrogen peroxide of cellulosic fibers and blends with elastane.
In the EB process, ZETALASE EB and ZETAKIN EB products are used together.
If compared to the standard method, several are the advantages:

Shorter processing times
Lower operating temperature
No need of pH-neutralization
Less energy and consequently less water consumption

In addition, EB process allows to obtain articles characterized by soft, full and natural hand, featuring lower creasability, better sewability, strength and elasticity. The EB process degrades only in little part the fiber and it is possible to achieve an ideal white degree for pastel shades, with a lower loss of weight and resistance compared to conventional bleaching.
ZETALASE EB and ZETAKIN EB are ready-to-use products, dilutable in fresh water at room temperature.
Aiming at energy saving, for the soaping step, ZAITEX recommends to use ZETASOAP SLT, a synergistic blend of sequestering and polymers, featuring a strong dispersant / discharging action of high efficacy already at 80°C that works at neutral pH.
Compared to the standard products, these products works at a lower operating temperature, shortening execution times and reducing overall costs.
ZAITEX has always supported textile production companies by providing them with qualified, technical know-how, tailor-made products and solutions for the optimization of any step of the preparation, dyeing and finishing processes. The EB process – Ecological Bleaching – at low temperature represents an effective alternative to conventional methods, able, already in the short term, to reduce two important production factors: time and total costs.

 

UV Absorbers

UV absorbers absorb harmful UV light and can thus convert the energy of UV light into harmless vibrational energy.
In order to fulfill the light fastness requirements for automotive industry, it is also essential to choose a high-quality UV absorber for the exhaustion-dyed polyester fabrics.
In addition to textiles, UV absorbers are also used for light stabilization of coatings, polyurethanes, PVC, engineering plastics, adhesives and elastomers.

ZETASORB E1
Combination of heterocyclic derivatives, increase the light fastness of the dyes obtained with dispersed dyes on polyester, cationic dyeable polyesters and polyester blended fabrics and provides protective action against UV rays.
non-ionic
ZETASORB FTS
High sublimation-fast UV absorber for automotive textiles made from polyester fibres. Improves the hot lightfastness of polyester dyeings with disperse dyes for the automotive industry. It is suitable for application in continuous, exhaust dyeing and printing. Meets the highest VDA 278 specifications.
non-ionic
ZETASORB PHS
UV Protection. Preparation of an o-hydroxyphenyl triazine. It counteracts photochemical fiber degradation, especially on long-term exposure to light. Is outstandingly stable to heat and fast to sublimation. Increased color stability, functionality and stability of polyester fibers. Improved light fastness of dyeings and prints, especially on long-term exposure to light at high ambient temperature.
anionic