Spotting Techniques & Stain Removal Flashcards

When treating a red wine stain on carpet, what is the FIRST step a technician should take?

Answer: Blot up as much of the liquid as possible

Blotting removes the bulk of the spill before any chemical treatment, preventing the stain from spreading deeper into the pile.

Which type of spotting agent is most appropriate for removing grease or oil-based stains from carpet?

Answer: Dry-solvent spotter

Dry-solvent spotters dissolve oil and grease because 'like dissolves like,' making them the correct choice for petroleum-based stains.

A customer reports a dried coffee stain. What is the best sequence for treatment?

Answer: Re-wet the stain, apply detergent spotter, rinse thoroughly

Re-wetting a dried tannin stain like coffee loosens it, followed by a detergent spotter and a thorough rinse to prevent residue.

What does 'wicking' refer to in carpet stain removal?

Answer: A stain that reappears after drying because moisture carries residue from the backing to the surface

Wicking occurs when moisture in the carpet backing migrates upward as it dries, bringing dissolved stain material to the surface and causing reappearance.

Which of the following stains is classified as a protein stain?

Answer: Blood

Blood contains protein (hemoglobin) and should be treated with cold water and enzyme-based or protein spotters; hot water sets protein stains.

When using an oxidizing spotter such as hydrogen peroxide on carpet, what is a key precaution?

Answer: Test on an inconspicuous area first, as it may bleach or discolor some fibers

Oxidizing spotters can bleach or lighten carpet fibers, especially wool and nylon, so a colorfastness test in a hidden area is mandatory.

What is the correct direction to work when spotting a stain to avoid spreading it?

Answer: From the outside edge inward toward the center

Working from the outer edge inward prevents the stain from being pushed outward into clean carpet fibers, containing the affected area.