Textile, leather, wood, paper and rubber

Patchy, uneven dyeing is most often caused by poor fabric preparation, water hardness or metal ions in the water, dye added too fast, or temperature and liquor circulation that are uneven. Test the process water and check the preparation stage before changing dyes.

Hard water and iron in water are frequent, easily missed causes. Your dyeing technologist can review the recipe and process. Taskon supplies chemicals into textile processing; see the textile and leather industry page.

Dye that bleeds in washing usually has not fully fixed to the fibre, because of the dye class used, too short a fixation time or temperature, the wrong fixation conditions, or poor washing off of unfixed dye after dyeing. Your dyeing technologist can check the fixation and wash-off steps.

Fixation conditions differ by dye class, so the correction depends on which dyes you use. This page does not advise on dye recipes.

Many flame retardant finishes are water soluble and wash out, so they are only suited to items that are not laundered. Wash-durable flame retardancy needs a durable finish or an inherently flame resistant fibre. Your textile technologist and a flammability test lab should advise.

Flame retardant claims on textiles are often regulated and must be supported by testing to the standard that applies to your product. Taskon supplies some boron and phosphate compounds into fire retardant formulations; see Boric Acid, Di Sodium Octaborate Tetrahydrate and Mono Ammonium Phosphate.

Taskon Industries manufactures boric acid, di sodium octaborate tetrahydrate and ammonium phosphates, which are supplied into fire retardant formulations. Whether a grade suits a textile treatment is decided by your formulator and flammability testing. Send your specification for a quote.

See Boric Acid, Di Sodium Octaborate Tetrahydrate, Mono Ammonium Phosphate and Di Ammonium Phosphate and the fire retardants industry page.

Uneven colour after tanning often traces to uneven penetration of the tanning agents, differences between hides, pH not controlled evenly through the process, or iron and other contamination in the water. Your tanning technologist should check pH control and water quality first.

This page does not advise on tanning recipes. Taskon supplies chemicals into leather processing against a specification.

Stiff, cracking leather is commonly caused by too little fatliquor, over-drying, uneven tanning, or problems in the neutralisation stage. It is a tanning process question for your technologist.

This page does not advise on leather processing. Send any chemical specification you need quoted.

Termite damage in treated wood usually means the preservative did not penetrate deep enough, the treatment level was too low for the risk, or the wood was cut after treatment and the untreated core exposed. Wood preservation is regulated in many places and should be done to the applicable standard.

A wood preservation specialist or pest control professional should inspect the damage. Borates are one class of wood preservative. Taskon makes Di Sodium Octaborate Tetrahydrate and Boric Acid. This page does not advise on treatment levels.

Soft wood with fungal patches is decay, and decay needs moisture. Treatment will not stop it if the wood stays damp, so find and remove the moisture source first. Badly decayed wood should be replaced, and new wood treated before use by a qualified treater.

Borate wood preservatives are one option for protection against decay fungi in suitable conditions. Taskon makes Di Sodium Octaborate Tetrahydrate. Treatment should follow the standard that applies where you work.

The preservative, its strength and the treatment method should be set by a wood preservation specialist to the standard that applies to your wood and its use. Taskon’s technical team can confirm the grades of its boron compounds against the specification you are given.

See Di Sodium Octaborate Tetrahydrate and Boric Acid and boron sources compared.

Taskon Industries manufactures boron compounds in Ahmedabad, Gujarat, including di sodium octaborate tetrahydrate at 20% Boron and boric acid, packed in 50 kg HDPE bags. Send the grade, quantity and delivery location for a quote.

See Di Sodium Octaborate Tetrahydrate and Boric Acid and the boron range.

Ink that smudges on paper is usually a surface sizing or surface strength problem, a change in the paper’s absorbency, or a mismatch between the ink and the paper. Test the sheet’s sizing and absorbency against its specification, and check whether the ink changed.

Your papermaking technologist should investigate the sizing and wet end. This page does not advise on paper chemistry. See the paper and pulp industry page.

Uneven or incomplete cure is commonly caused by poor dispersion of curatives in the compound, incorrect curing time or temperature, uneven heat in the mould, or a change in a compound ingredient. A cure test on the compound will show whether it is the compound or the process.

Zinc oxide is an activator in many rubber compounds. Taskon makes Zinc Oxide, published at 99% min. Your rubber technologist should set the formulation.

A compound that stays soft is usually under-cured: too short or too cool a cure, too little curative or activator, poor mixing, or a raw material out of specification. A cure test compared against the compound’s reference will locate the cause.

If an activator lot changed, compare its certificate of analysis with the previous lot. See Zinc Oxide.

The compound formulation, including the activator grade, is set by your rubber technologist. Taskon’s technical team can confirm whether its zinc oxide meets the specification they give you.

See Zinc Oxide and the oxides range.

Taskon Industries does not list sodium thiosulphate among its 56 products. It makes other sodium compounds, including sodium sulphate and sodium nitrate. Send your requirement and we will tell you plainly whether anything we make meets it.

See Sodium Sulphate and Sodium Nitrate and the full product catalogue.