Quality control begins with the cotton we source.

WJ Cotton sources cotton lint and cotton linters from suppliers around the world. Before making a sourcing decision, we review the quality information provided for the material offered. When closer verification is necessary, our team may travel to the supplier's country to inspect the cotton on site.

Raw cotton warehouse Cotton lint / Cotton linters

02 Scouring & bleaching

Prepared absorbent fiber

From compressed cotton bales to prepared absorbent fiber.

Compressed raw cotton arrives in bales before being opened and cleaned of naturally occurring impurities such as seed and leaf fragments. The prepared fiber is then loaded into large process vessels, where it is scoured at high temperature with sodium hydroxide and water to remove natural waxes and oils, followed by high-temperature hydrogen peroxide bleaching.

Our bleaching process does not use chlorine-containing bleaching chemicals or fluorescent whitening agents. Under the process conditions, hydrogen peroxide ultimately breaks down into water and oxygen. The cotton is then washed, dewatered, dried with a heat-pump system, reopened and compressed into wrapped bales for storage and shipment.

No chlorine-containing bleaching chemicals No fluorescent whitening agents

Cotton scouring and bleaching vessel

Heat-pump drying system used after cotton washing and dewatering — Heat-pump drying system

Wrapped compressed bales of finished bleached cotton stored in the warehouse — Compressed bleached cotton bales

Production sequence

01 Raw cotton intake
Imported raw cotton arrives in compressed bales.
02 Raw cotton feeding
Compressed cotton is fed into the preparation line.
03 Opening & carding
Loosen the fiber and remove natural impurities.
04 Scouring & bleaching
High-temperature scouring followed by hydrogen peroxide bleaching.
05 Rinsing, dewatering & drying
Rinse, dewater, heat-pump dry and reopen the cotton.
06 Compression packing
Compress and wrap the finished bleached cotton into bales.

Material output Bleached absorbent cotton View material →

03 Carding & forming

Two material paths

One bleached cotton base. Two forming paths.

After bleaching, drying and reopening, absorbent cotton passes through carding to form either cotton sliver or a carded cotton sheet. The selected material form depends on the finished product to be manufactured next.

Carding machine preparing bleached absorbent cotton One input / Two material outputs

Material path 01 / Flat material

Carded Cotton Sheet

A flat, even cotton layer prepared as the material input for further converting.

Rolling / Cutting / Folding

Material path 02 / Continuous material

Cotton Sliver

A continuous cotton fiber form prepared for downstream product forming.

Portioning / Tip forming View Cotton Sliver →

04 Product forming

Five finished-product paths

Two material forms. Five finished-product paths.

Cotton sliver is formed into cotton balls and cotton swabs. Carded cotton sheet is converted into absorbent cotton rolls, dental cotton rolls and folded cotton. The finished product determines which material path continues into production.

Material route 01