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WJ Cotton
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Cotton ball factory · Wucheng, Shandong, China

Absorbent Cotton Balls (Cotton Wool Balls) Manufacturer

White absorbent cotton balls from 0.1 g to 3 g per ball, packed by weight or by count, for importers, wholesalers, pharmacy and beauty distributors, and private‑label brands.

  • 0.1 g to 3 g per ball
  • 100% cotton, non-sterile
  • Your brand on the pack
  • Free samples

Or email kitty@wjcotton.com

A pile of white absorbent cotton balls on a light grey studio background

Specifications

What We Make: Cotton Ball Sizes and Specifications

Absorbent cotton balls, also called cotton wool balls, are small balls of bleached cotton that soak up water quickly. We make them in any weight from 0.1 g to 3 g per ball and pack them 10 g to 500 g per bag, or by count.

The cotton ball
ItemSpecification
Material100% cotton, bleached absorbent cotton
ShapeRound, soft and springy
ColorWhite. Also available in pastel colors: colored cotton balls
Ball weightAny weight from 0.1 g to 3 g per ball
Pack size10 g to 500 g per bag, or a set number of balls per bag
SterilityNon-sterile. Sterile balls are not offered.
Absorbent cotton test requirements
Test itemRequirement
Sinking time≤7 s
Water absorption capacity≥23 g/g
Water-soluble substances≤0.50%
Ether-soluble substances≤0.50%
Sulfated ash≤0.40%
Loss on drying≤8.0%
pH6.5–7.5
FluorescenceNo strong blue fluorescence

These are the test requirements for the absorbent cotton our balls are made from. The limits follow the absorbent cotton requirements of the British and European Pharmacopoeias (BP/EP). If your market uses another standard, such as USP, IP or JP, send it to us: we confirm which points we can meet and make the balls to it. Full test list

Sizes

Cotton Ball Sizes: Weight, Diameter and Count

We make and quote cotton balls by weight per ball. These are the sizes we make most often, with the approximate number of balls in a 100 g and a 500 g bag.

Common cotton ball sizes
Ball weightDiameter, aboutBalls per 100 gBalls per 500 g
0.3 g2 cm (0.8 in)≈330≈1,700
0.5 g2.5 cm (1.0 in)≈200≈1,000
1 g3 cm (1.2 in)≈100≈500
2 g3.5 cm (1.4 in)≈50≈250
3 g4 cm (1.6 in)≈33≈170

Cotton balls are soft, so diameters are approximate. Counts are worked out from the ball weight. If you sell by count, we pack a set number of balls per bag, such as 100 or 500.

A hand holding a few white cotton balls

Small, Medium, Large or Jumbo?

Shops sell cotton balls as small, medium, large or jumbo, but these names are not a standard: brands use different weights for the same name. That is why we quote by grams per ball. Send us the weight you buy now, or a few balls from your current pack, and we match them.

Any weight from 0.1 g to 3 g

The table shows our most common sizes, but we can make any ball weight between 0.1 g and 3 g, such as 0.4 g, 1.5 g, 2.5 g or 2.6 g.

Packing and private label

Packing and Private Label Options

Order in neutral packing, or under your own brand from a single pack. Balls are packed by weight or by count in heat-sealed plastic bags, then in export cartons marked to your instructions.

  • White cotton balls in a clear sealed plastic bag
    Neutral bag A clear sealed bag with no brand, ready for your own label or for repacking.
  • Cotton balls in a clear bag with a placeholder brand label
    Your label on a clear bag Your self-adhesive label on each bag, from a single pack.
  • Printed cotton ball bag design with a YOUR BRAND placeholder
    Printed bag A bag printed in your design. Shown here as a design with a YOUR BRAND placeholder.
  • Pastel colored cotton balls in a clear bag
    Colored ballsPastel colored balls in clear bags. See colored cotton balls.

Send your artwork or a photo of the pack you sell now. We confirm the bag, label and artwork with you before production.

What We Can Change

  • Your self-adhesive label on each bag, from a single pack
  • Brand name and logo on the bag or label
  • Your barcode on the pack
  • Label text in your market's language
  • Ball count or net weight on the label, such as 100 COTTON BALLS or NET WT 3.5 OZ (100 g)
  • Carton marks to your instructions
Private label cotton ball packaging designs marked YOUR BRAND: bulk bags, retail bags, a colored ball bag and a glass jar
Packaging designs for illustration, printed with a YOUR BRAND placeholder. Not products on sale.

Trade names

Cotton Balls, Cotton Wool Balls or Absorbent Cotton Balls? Same Product

Buyers in different markets use different names for the same ball. If you use any of these names, you are in the right place.

Name you may useWhere it is commonSame product?
cotton ballsUS, Canada and general useYes
absorbent cotton ballsUS and general exportYes
cotton wool ballsUK, Ireland, Australia, New Zealand, South AfricaYes
medical cotton ballsExport catalogs and tendersYes. The name alone does not mean sterile
surgical cotton ballsSouth Asia and the Middle EastYes, as a trade name. Supplied non-sterile
hydrophilic cotton ballsbolas de algodón hidrófilo · boules de coton hydrophile — Latin America, Spain, French-speaking AfricaYes
cotton wool rollEverywhereNo. The same cotton as a continuous roll. See absorbent cotton rolls.
cotton sliverCotton ball and swab makersNo. The rope of cotton our balls are formed from. See cotton sliver.

Factory

Made at Our Factory in Wucheng, Shandong

WJ Cotton makes cotton balls at its own factory in Wucheng County, Dezhou, Shandong, China. We bleach the cotton ourselves, then form it into balls and pack them.

Contact
Email: kitty@wjcotton.comWhatsApp: +86 133 5627 0555
A can of cotton sliver beside a carding machine at the WJ Cotton factory
Carding line Cotton carded into sliver, ready to be formed into balls
Stainless steel tanks on the cotton bleaching line at the WJ Cotton factory
  1. 01 Absorbent cotton checked Whiteness, sinking time and moisture before use.
  2. 02 Carded into sliver The cotton is carded into an even rope.
  3. 03 Cut and formed into balls Ball weight is spot-checked on the line.
  4. 04 Bagged and heat-sealed Seals are checked so the balls stay clean and dry.
  5. 05 Labeled and packed Batch records are checked before the goods leave.

Samples and orders

From Free Sample to Bulk Order

Check our cotton balls against the ones you buy now before you place a bulk order.

  1. 01 Tell us the ball Ball weight, pack size and quantity, or a photo of the pack you sell now.
  2. 02 Free sample We send sample balls for you to check.
  3. 03 You check and approve Compare them with the balls you buy now, or test them at your own laboratory. Approve the artwork too.
  4. 04 Bulk order matched to the sample Made to the sample, artwork and carton marks you approved.
  5. 05 Ship with export documents Certificate of origin, phytosanitary certificate and free-trade-agreement certificates such as RCEP and Form E, issued at our cost where your market requires them.

FAQ

Absorbent Cotton Balls FAQ

Question not listed here? Ask us directly

Are cotton wool balls the same as absorbent cotton balls?
Yes. UK buyers say cotton wool balls, US buyers say cotton balls or absorbent cotton balls; it is the same product. Some markets also say medical or surgical cotton balls; ours are supplied non-sterile.
What sizes of cotton balls can you make?
Any weight from 0.1 g to 3 g per ball, such as 2.5 g or 2.6 g. The sizes we make most often are 0.3 g (about 2 cm across), 0.5 g (2.5 cm), 1 g (3 cm), 2 g (3.5 cm) and 3 g (4 cm). Names such as medium or jumbo differ between brands, so send us the weight or a few balls from your current pack.
How many cotton balls are in a 500 g bag?
It depends on the ball weight: about 1,000 balls of 0.5 g, 500 balls of 1 g or 170 balls of 3 g. If you sell by count, we can also pack a set number of balls per bag, such as 100 or 500.
Are your cotton balls sterile?
No. Our cotton balls are supplied non-sterile, and sterile balls are not offered.
What are your cotton balls made of?
100% cotton. We bleach the cotton into absorbent cotton at our own factory, made to a water absorption capacity of at least 23 g/g and a sinking time of 7 seconds or less, then form it into balls.
Can you make cotton balls to BP, EP or USP?
Yes, we make cotton balls to the standard your market uses. The test limits on this page follow the British and European Pharmacopoeias; for USP, IP, JP or a tender specification, send us the standard and we confirm each point before quotation. You can test our free sample at a laboratory you choose.
Can I get free samples before I order?
Yes. We provide free samples before you place an order. Tell us the ball weight and pack size you want, or send a photo of the pack you sell now.
What is your MOQ and lead time?
You can order from 1 kg or a single pack. Lead time depends on ball weight and packing; send your specification and we will reply with the lead time for that order.
How are the cotton balls packed?
In neutral packing with no brand, or in custom packing with your own label: even for a single pack, we put your self-adhesive label on each bag. Balls can be packed by weight or by count, and printed bags in your design are also available.
Are you a factory or a trading company?
A factory, not a trading company: we make cotton balls at Wucheng Wenjiang Sanitary Materials Co., Ltd., in Wucheng County, Dezhou, Shandong, China.

More buyer questions — minimum order, samples, labels, lead time — are answered on our medical cotton buyer FAQ.

Cotton ball RFQ

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