Grid and check fabrics look simple on a swatch card. In production they are among the least forgiving knits, because every cutting, sewing and washing error shows up as a crooked line.

Quick Answer: What Is J24016?

J24016 is a grid-pattern knit made from 82% polyester and 18% spandex. It weighs 235 GSM and is 164 cm wide. It is listed in the Sportwear Series. Polyester supplies strength, colour retention and quick drying. The 18% spandex supplies stretch and shape recovery. At 235 GSM it sits in the mid-to-heavy range for stretch knits, so it suits garments and products that need body and support rather than a sheer, floaty drape.

Table 1: Published specifications and what they mean in practice

Source: Wanjie Textile product page. The right-hand column is our interpretation, not measured data.

What "Grid" Means When You Are Sourcing

In the Chinese textile trade this type of cloth is called polyester-spandex grid cloth, and the product images on the page are labelled that way. It is a check or square pattern on a stretch knit. The pattern can be created in three different ways: by the knit structure (raised and recessed lines), by yarn-dyed colour, or by printing. The page does not say which method J24016 uses, and the answer matters. A structural grid is permanent. A printed grid can crack or fade where the fabric is stretched repeatedly. Ask for the construction method before you approve a sample.

One more point on reading the page honestly. The product description mentions tear resistance and uses such as tents, bags and industrial covers, which are typical of woven reinforced-grid fabrics. The published specification, however, describes a polyester-spandex stretch knit. A knit with 18% elastane behaves differently from a woven ripstop under load. If your application is a bag, cover or other load-bearing product, request tensile and tear test results for J24016 itself rather than relying on the general description.

Three Insights That Change the Buying Decision

1. GSM and width together give you the real cost basis

Fabric is bought by length but shipped by weight. At 235 GSM and 164 cm wide, one running metre weighs about 385 g (235 x 1.64). A 100 m roll therefore weighs roughly 38.5 kg before core and packaging, and one kilogram of fabric yields about 2.6 running metres. Use these figures to compare freight quotes and to check offers on a like-for-like basis.

2. 18% spandex sits in the middle of the range, and that is useful

Wanjie publishes several stretch constructions with different elastane levels. Comparing them shows where J24016 fits, and helps you decide whether to look at a neighbouring product instead.

Table 2: J24016 compared with other published Wanjie stretch fabrics

Source: Wanjie Textile product and series pages. Series rows are typical listings, not a single article.

J24016 is heavier than the two lightweight check and stripe knits and carries less elastane than they do. In practice that points to a firmer, more stable fabric with controlled stretch, which is helpful when you want the grid to stay readable on the finished product.

3. Grid matching costs fabric, so plan it before you quote

A visible grid must line up at centre front, side seams and pocket edges, and matching uses more fabric than an unmatched layout. As a planning assumption, allow roughly 10 to 15% extra yardage until a real marker test gives you the true figure. For example, a garment that uses 1.20 m unmatched may need about 1.32 to 1.38 m with matching. Treat this as a starting estimate and replace it with your own marker result.

Where It Fits and Where It Does Not

Table 3: Application suitability guide

Technical Issues and How to Prevent Them

The problems below are the ones most often raised with polyester-spandex checks. The remedies are general industry practice, so confirm each one on a sample from your actual lot.

Table 4: Common issues, likely causes and recommended actions

Quality and Compliance: What to Ask For

Wanjie's series pages list GRS, OEKO-TEX 100, ISO 9001 and ISO 14001 among its standards. Those statements are made at the product-range level, so ask for a current certificate that names the article and colour you intend to buy. Two details help you read these labels correctly.

OEKO-TEX STANDARD 100 tests textiles for harmful substances and sorts products into four classes. The stricter classes apply where skin contact is more intensive, and class 1 (babies and young children) is the strictest. Certificates are issued for one year, and the OEKO-TEX Label Check lets you confirm a certificate number yourself. Make sure the class matches your end use. A fabric certified for products without skin contact is not automatically suitable for underwear or children's wear.

The Global Recycled Standard, maintained by Textile Exchange, concerns recycled content and chain of custody. It applies only to recycled-fibre versions of a fabric. Ask whether J24016 is offered in a recycled-polyester version and, if so, request the transaction certificate for your order.

Table 5: Test requests to include in your sample approval

Test methods are published by ISO and ASTM International. Acceptance limits should be agreed in writing between buyer and supplier.

How to Evaluate a Sample Before Ordering

1. Confirm reference J24016, weight, width and composition against your specification.
2. Ask how the grid is formed (structure, yarn-dyed or printed) and judge it accordingly.
3. Mark the grid on a swatch, wash it, and record shrinkage and line skew in both directions.
4. Sew a seam sample with your intended machine, needle and thread, and check that the grid aligns at the seam.
5. Approve colour under consistent lighting and keep a signed standard for bulk comparison.

Care Guidance

For its spandex products Wanjie recommends gentle machine washing in cold water at 30 degrees Celsius, no bleach, no dry-cleaning, low-temperature or air drying, and low-temperature ironing only when necessary. These instructions come from the Spandex Series page, so confirm they apply to J24016 and always follow the care label on the finished product. Heat is the main enemy of elastane.

About Zhejiang Wanjie Textile New Material Co., Ltd.

Wanjie Textile was founded in 2007 and specialises in warp-knitted fabrics. According to its About Us page, its facilities cover greige fabric knitting, dyeing and finishing, and it has invested in high-density Karl Mayer warp knitting machines to serve growing demand for sportswear and yoga fabrics. A large stock warehouse supports ready-to-ship fabric. The company's stated values include innovation, quality, integrity, sustainability, collaboration and agility, and its patents and certificates are shown in the Patents and Certificates section.

The product page states that the listed colour, weight and width describe stock fabric and can be customised, and that customers with their own fabric or a specific target product are welcome to get in touch. The company states that it replies to inquiries within one working day.

Table 6: Contact information

Frequently Asked Questions

What is the composition of Polyester Grid Fabric J24016?

82% polyester and 18% spandex, at 235 GSM and 164 cm wide.

Can the colour, weight or width be changed?

The product page states that colour, weight and width can be customised. Send your target specification and ask about minimum order quantity and lead time for custom runs.

Is it suitable for bags or tents?

It can be considered, but because the specification describes a stretch knit, request tensile, tear and abrasion test data for J24016 before committing to load-bearing products.

How do I keep the grid straight on the finished product?

Let the fabric relax before cutting, spread it without tension, cut along the grain, align the grid at visible seams, and test a washed swatch for skew as well as shrinkage.