小编
Release time:2026-11-01Many corporate procurement leaders have such confusion: not long after the customized work clothes were sent out, employees reported that they opened the thread after washing it a few times, the neckline was loose, and the hem was deformed... Is it a fabric problem or a workmanship problem? Today, I will make it clear at one time, and teach you a few test methods that can be done at home.?
Let's talk about the conclusion first: whether the line will be deformed or not depends on three core factors
1️⃣ Fabric composition and pre-shrinkage treatment
If the pure cotton fabric is not pre-shrunk, the shrinkage rate of the first machine wash may reach 5% -8%, and the clothes are directly one size smaller. The stability of polyester-cotton blends (such as 65/35 ratio) is much better. Shenzhen Yasenman Garment Co., Ltd. will pre-shrink the fabric before customization to control the shrinkage problem from the source.
2️⃣ Suture density and stitching
The industry standard requires no less than 12 stitches per 3 cm, but some small workshops only make 8-9 stitches in order to rush to work, and the stitches are sparse and naturally easy to open. Yasenman adopts a four-thread overseam + double-needle reinforcement process, and the stress parts such as the armpit and crotch will also be reinforced by jujube, and it is not easy to collapse the thread after machine washing many times.
3️⃣ Dyeing Process and Color Fastness
Work clothes with substandard color fastness will not only fade after machine washing, but also become brittle and accelerate deformation. The color fastness of active printing and dyeing fabrics can reach level 4 or more, and they are still crisp after repeated washing.
So, how do you test if the work clothes you get are up to standard?
? Test 1: Shrinkage rate test
Take a new work uniform, measure the length and bust and record it. Machine wash it in standard mode with warm water at 30 ° C, dry it naturally and measure it again. If the shrinkage rate exceeds 3%, it will not pass. Yasenman customized work clothes will be tested for shrinkage rate before leaving the factory to ensure stable size after delivery.
? Test 2: Suture tensile test
Focus on checking the underarm, shoulder seam, and crotch positions. Pinch both sides of the suture with your hands and pull hard. If you hear a "hiss" sound or see a large pinhole, it means that the suture density is not enough. The normal process should be able to withstand more than 15 kg of tension.
Test 3: Color fastness and pilling test
Rub a white wet towel on the dark fabric 20 times to see if the towel is stained. Then turn the clothes over and machine wash them 3 times to see if the surface is pilling. No pilling or no staining is considered a pass.
How can daily machine washing operate to prolong lifespan?
✅ Turn over and wash, pull the zipper and button it.
✅ The water temperature does not exceed 40 ° C, choose the gentle mode
✅ Avoid bleach, neutral detergents are best
✅ Shade drying is the main one, and sun exposure will accelerate fiber aging.
Shenzhen Yasenman Apparel Co., Ltd. has been specializing in the customization of enterprise workwear for more than ten years. From fabric screening to finished product delivery, each workwear has undergone 6 quality inspection processes, and each workwear has been machine washed and simulated before delivery to customers. If you are looking for a reliable customization manufacturer, you may wish to know Yasenman, which supports sample customization, free sample delivery, and batch ladder quotation.

Work clothes are the facade of an enterprise and the daily robes of employees. Choose the right manufacturer, machine washing and thread deformation can be completely avoided.?