Livinguard SFD

Break-through new approach that enables salt-free cellulose dyeing through a cationization pre-treatment for a more sustainable dyeing process and the eradication of RO treatments to recover salt. Another step towards a more sustainable future through a game-changing environmental impact from water and energy savings – all while providing disruptive economics for mills and compatibility with existing equipment.

Technology

Functionalizing the fabric for higher dye uptake and dye adsorption without the use of salt

Untreated cellulose

Cellulosic fiber are anionic and thus repulse anionic reactive dye molecules. In a conventional dyeing process this is overcome through the addition of salt to exhaust the dyestuff on the fabric.

Livinguard SFD

Livinguard SFD forms a strong covalent bond with the cellulosic fiber and provides cationic groups to attract anionic dye molecules.

Dyeing

As reactive dye and alkali are added to the dyebath, the dye reacts with the cellulosic fiber forming covalent bonds. Dye molecules which reacted with water (hydrolyzed dye molecules) are strongly adsorbed by the cationic charges of Livinguard SFD.

Neutralization & rinse

Neutralization removes excess alkali but no dye molecules (colorless drain). No further washing is required as all dye molecules are strongly bound to the fiber.

Legend:

Covalently bound dyes

Hydrolyzed dyes

Livinguard SFD

Benefits

Our technology provides environmental impact and disruptive economics for textile producers

Up to 10%
cost savings

From reduction of water, energy, dyestuff & auxiliaries and simplified RO process

Up to 30%
productivity increase

From reduction of total process time required from dyeing over soaping & washing post dyeing to finishing

Up to 25% production capacity increase

Added production capacity without requiring any new capital investment into new equipment

Up to 30%
energy savings

From fewer washing cycles carried out at room temperature and eradication of RO treatments to recover salt

Complete eradication of salt from the dyeing

Simplifying effluent treatments and improving ability to recirculate water in the dyeing process

Up to 25%
of water savings

From reduction of soaping & washing cycles required post dyeing to extract unfixed dyes

Reducing greenhouse gas emissions

Credible sustainability improvements to present to brands that are looking to reduce their scope 3 GHG emissions and meet their sustainability goals

Lower dosage of dyestuffs

Up to 20% lower dosing of dyestuffs and lower dye burden in the effluent due to higher dye uptake

Chemical additive optimization

Partial or complete substitution of other chemical additives (e.g. fixing agents) from the process

VALIDATION

Livinguard  S+FD has been extensively tested with great results and was able to match the fastness requirements of the established conventional dyeing process.

Advantage

Overview of process flow for conventional vs. Livinguard SFD (exemplary process)

Conventional process – example dark shades

Livinguard SFD process – example dark shades

Validation

Livinguard SFD has been tested externally with great results

ISO 105-X 12:2016

Method for determining the resistance of the color of textiles to rubbing off and staining other materials.

Two tests may be made, one with a dry rubbing cloth and one with a wet rubbing cloth.

  • Livinguard SFD with same dry rubbing fastness performance as conventional process across all 4 colors tested

  • Livinguard SFD with same wet rubbing fastness performance for red & navy, slightly lower performance for yellow & turquoise (still above standards for most brands at 3-4)

SO 105 C06:2010

Methods for determining the color resistance of textiles in all forms to domestic or commercial laundering procedures used for normal household articles using a reference detergent.

  • Livinguard SFD with overall comparable washing fastness performance across all 4 colors tested

  • Livinguard SFD meets or exceed standards for most brands

AATCC EP 6-2016

Measurement and handling procedures for color (or colored appearance) by instrumental means (reflectance, transmittance measurement, and related calculations)

  • Color deviations observed well within acceptable limits

Explore our point of view on how our technology optimizes your operations and provides environmental benefits

Text Link

Whitepaper - Review of Alternative Technological Approaches for Mitigation of Ecological Footprint of Cotton Dyeing

PDF

234 kB

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Impact

Livinguard SFD can have a transformative impact on the world

Our technology is a sustainability game changer - assuming 10% of the addressable production moves to Livinguard's SFD technology will yield massive water and CO2 savings

Smiling child washing hands under a water tap outdoors, highlighting clean water access and hygiene in a rural setting.

20 Billion L /year

Water savings

650 Million Kg /year

CO2 savings

Approvals & certifications

Compliant with relevant industry standards and requirements

Livinguard SFD is compliant with relevant industry standards and requirements

Contact

Get in touch with us today to harness the power of positive charge!

Let us talk about how Livinguard can help solve your product challenges today.