TANA®SPAN DF puts an end to the grin-through effect

Esther Pujol

Nowadays different proportions of elastane fibres are widely used in seamless or compressed articles. Think of swimwear, hosiery and lingerie, or medical compressions. The ‘manmade fibre’ owes much of its success to its high comfort level and shape retention, causing a great fit, stretch recovery and smooth touch.

As much as we love the many features of elastane fibres, we dislike the undyed threads that appear when we stretch our polyamide/elastane textiles. This is why TANATEX experts worked out a solution to the infamous grin-through effect of elastane fibres. And with success. With TANA®SPAN DF, the great features of elastane are even better than before.

Harmonising  tone-in-tone dyeing

The grin-through effect sabotages dyeing results of polyamide/elastane fibres and makes textiles look unlevelled. We created a solution that not only solves this issue, but also enhances the quality of the fabric. TANA®SPAN DF improves dye uptake and makes sure that the dye is applied more controllably, which avoids mistakes and boosts reproducibility. In addition, TANA®SPAN DF improves colour tone and colour depth, resulting in a brightness that lasts longer. Most importantly, TANA®SPAN DF harmonises tone-in-tone dyeing and lifts the appearance of the fabric beyond its standards. This way, you eliminate the downside of elastane and get the advantages only.

Application

Elastane fibres need to be treated with care during the entire wet processing. TANA®SPAN DF is the result of thorough lab work. TANATEX experts checked the dyeability of many polyamide/elastane samples and experimented with different types of fabric, dyestuff and the usage of TANA®SPAN DF in various concentrations. They came out with a solution for the grin-through effect and a fabric enhancer in one.

The product is miscible in water and can be added directly to the dyebath in any proportion, although in our experience, the optimal concentration lies between 0.25% - 1.0%, depending on the type of elastane and the depth of the shade. TANA®SPAN DF is applicable on all dyeing equipment, it is colourless and has excellent levelling properties. And as it is highly compatible with other dyeing auxiliaries such as SPANSCOUR® SPARK and BLANKOPHOR® PAS Liquid (pre-treatment to improve whiteness) and MESITOL® (post treatment for dark shades), TANA®SPAN DF contributes to positive fabric features such as whiteness and wet fastness. 

Lab  tests and advisory report

Our experts know all there is to know about fibre types and the way they respond to different dyes. They happily help you customise our solutions and solve the grin-through effect. This way, we make your ultimate dyeing process happen. 

Visit our website www.tanatexchemicals.com and get in touch!

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