We have been one of the leading China’s coverall manufacturers since 2009. Based on years of experience, we would like to share some common issues on pure cotton fabric for coveralls.
Pure cotton coveralls are more popular among customers across the world. Because they are comfortable to wear, breathable, and moisture absorbent. However, we also come across many common issues related to the pure cotton fabric for coveralls.
1. Shrinkage
Shrinkage is one of the most headaches for 100% cotton coverall. Pure cotton excels in water absorbency, which causes the fibre gets larger and shorter. So it shrinks, especially after the first few washes. And the coveralls might be too tight after washing.
Factors important for shrinkage:
- The thicker the thread, the more it swells when it absorbs water. We recommend 16x12S, because the shrinkage rate for cotton fabric in 16x12S would be better, and the material is affordable and most durable.
2) The smaller the density, the more space there will be for the fibers to contract. The most common density for cotton fabric is 108*56.
- The times for which fibers are stretched and the amount of tension applied during processing can also affect the shrinkage rate.
What to do:
- Use water at 35°C or lower, and avoid soaking in detergent for a long time.
- Stretch the fabric slightly after washing it when it is almost dry.
- Avoid high-temperature ironing. Don’t dry the coverall over direct heat or under strong sunlight.
- Ask for pre-shrinking treatment for cotton fabric before production. It can minimize the shrinkage rate of the finished coverall.
2. Wrinkling
Cotton coverall could get wrinkled easily, especially after washing and drying. 100% Cotton 16X12 108X56 twill fabric is easy-care and wrinkle resistant; Or we can select polyester/cotton blend fabric for coverall producing to make a balance between cotton’s excellent breathability and polyester’s perfect wrinkle resistance; Iron the cotton coverall with steam at a temperature between 150 and 180°C. Ironing under 200°C could cause fabric color changing or a bit yellow.
3. Low Durability
Coveralls made from 100% cotton tend to wear out faster than those from polyester or blended fabric, especially under high mechanical stress (abrasion, pulling, or cutting). Over time, there could be tearing, thinning or even holes on the cotton coverall.
In this case, we will have to use thicker cotton at least up to 210GSM for longer durability to produce the cotton coverall. Or we can also use cotton blends (like polyester and nylon) to improve its durability. Reinforce the knees, elbows, and pockets for longer service time.
4. Fading
Some cotton fabrics for coverall, particularly dark-colored or brightly dyed tends to fade after several washings. To avoid such issue, we must select cotton fabric of high quality dyeing, especially those with anti-fading processing.
Some methods for anti-fading
- Pre-shrinking treatment for cotton fabric is not only good for better fit, but also an effective way to enhance color fastness.
- Use reactive dyes for dyeing.
- Use fixing agent after dyeing for better color fastness.
- Wash inside out in cold water.
- Use mild detergent for washing and avoid alkaline detergent.
- Do not dry the cotton coverall under direct strong sunlight.
5. Absorbs Moisture but Dries Slowly
Cotton coverall is highly absorbent and can retain moisture for a long time. As a result, the fabric could feel damp and heavy. Also In storage, cotton coveralls could easily get moldy in wet or humid environments.
In high-moisture environments, it might be better for workers to opt for cotton blends or use quick-drying synthetic materials for quick drying. And keep the cotton coveralls in dry places and use drying agent if the humidity is too high.
6. Pilling
Extended use and repeated washings can make pure cotton coveralls get small lint balls or “pills” on the surface. So use high-quality cotton with longer fibers and avoid high-speed spin cycles to wash cotton coveralls.
How to tell long cotton fibre fabric
Pull a thread out carefully from the edge of the cotton fabric. Split up the thread to observe the length of each fibre. Long fibre cotton shall be 25-50mm, while short fibre cotton can be 12-20mm.
7. Prone to Stains
Cotton coveralls can absorb water well. So can they when used in environments with oil, grease, or chemicals. Stain-repellent finishes for cotton fabric could be helpful. Immediate washing after exposure to stains can also work to maintain cleanliness.
8. Flammability
Cotton coveralls are flammable. So without fire-resistant treatment, the cotton fabric is not suitable for places where fire hazard could happen.
9. Degradation in Harsh Chemicals
Exposure to certain chemicals, acids, or oils can reduce its protective capabilities. Use chemical-resistant treatments. For high-risk environments, alternative materials like treated synthetic fabrics may be more suitable.
10. Slow Drying Time
Pure cotton dries more slowly than synthetic fabrics, which can be a big trouble in wet working conditions or when frequent laundering is necessary. In that case, cotton-polyester blends or fully synthetic fabrics may be more appropriate.
11. Softness Degrading over Time
Over time after long-time wearing or several washings, the cotton coverall could lose its original softness and get a bit stiff. Use softeners properly to keep the coverall soft and comfortable to wear.
12. Higher Costs
Cotton coverall is usually more expensive than synthetic materials. Select the right fabric based on working environments and the wear-and-tear strength. That makes sense to reduce costs budget and enhance durability of the coveralls.
Conclusion
Out of its comfort and breathability, pure cotton is a widely preferred fabric for coverall. But do not choose pure cotton fabric blindly. In wet or chemicals-exposed environments, polyester or blended fabrics could be better sometimes.
