Cotton Interlock Fabric Wholesale: A Buyer's Guide to Specs & Suppliers
If you have ever touched a premium baby blanket or a structured polo shirt and wondered why the fabric feels thicker and softer than a regular T-shirt, you were probably holding interlock knit. It is the quieter, higher-end cousin of single jersey — and it is showing up in more and more wholesale orders as brands look for a knit that keeps its shape, drapes cleanly, and feels soft on the skin.
If you are buying cotton interlock fabric wholesale for the first time — whether you run an apparel brand, a babywear line, or a cut-and-sew operation — this guide covers what interlock actually is, which specifications decide price and quality, and how to evaluate a supplier without getting burned.
Photo: Unsplash
What is cotton interlock fabric?
Interlock is a double-knit fabric: two layers of jersey are knitted together so the two faces are locked back-to-back. The result is a fabric that looks the same on both sides — no "right side / wrong side" to manage in cutting — and that resists the edge curling that plagues single jersey.
| Term | What it means | Typical use |
|---|---|---|
| Single jersey | One layer of looped knit; light, stretchy, curls at edges | T-shirts, underwear, nightwear, baby bodysuits |
| Interlock (double knit) | Two jersey layers knitted together; thicker, firmer, both faces identical | Polos, premium tees, dresses, baby blankets, thermal wear |
Interlock is generally 10-25% more expensive than single jersey of the same fiber because it uses roughly twice the yarn — but that extra cost buys structure: it holds its shape through washes, drapes with a clean fold, and feels plush against the skin, which is why it is the default for babywear and premium apparel.
Why wholesale buyers care about interlock right now
- Baby and children's wear is the anchor. Interlock's softness, stability, and no-curl edges make it a staple for baby bodysuits, blankets, and toddler clothing. Organic interlock is especially popular in this category.
- Premium basics are trending. Consumers are trading up from basic tees to structured polos, dresses, and loungewear — exactly the garments where interlock's drape and shape retention justify the price.
- Cut-and-sew shops prefer it. Because both faces are identical and edges do not curl, interlock wastes less fabric and saves labor in cutting — a real cost advantage for small production runs.
The specifications that decide price and quality
When comparing cotton interlock fabric wholesale quotes, check these specs before comparing prices:
1. GSM (grams per square meter). Interlock typically runs 180-280 gsm — heavier than single jersey (120-220). Lightweight (180-200) suits babywear and summer tees; midweight (200-240) is the workhorse for polos, dresses, and loungewear; heavyweight (240-280) goes into thermal wear, outerwear, and structured garments. A suspiciously cheap quote almost always means low GSM.
2. Yarn count. Finer yarn (e.g. 30s-40s combed cotton) makes a smoother, softer face; coarser yarn (10s-20s) gives a more textured, heavier hand. Ask the supplier for the yarn count — it is the single biggest driver of hand feel in interlock.
3. Fiber content and blends. 100% cotton is the default ask. Common blends: 95/5 cotton-spandex for stretch recovery, 60/40 or 65/35 cotton-poly for wrinkle resistance and lower cost. Each blend changes the "feel" story — make sure the quote matches the blend you quoted.
4. Width. 60" (150 cm) is standard for apparel knits; wider widths reduce cutting waste but cost more.
5. Shrinkage. Double knits shrink less than single jersey but still move — expect 3-5% lengthwise on first wash unless pre-shrunk or compacted.
6. Certification. Same trio as other cotton fabrics: GOTS (organic, farm to finished product, plus processing standards), OCS (organic content only), and OEKO-TEX Standard 100 (chemical safety of the finished fabric). For babywear, GOTS or at least OEKO-TEX is the norm.
| Certificate | What it proves | When you need it |
|---|---|---|
| GOTS | Organic content + environmental and social criteria in processing | The gold standard for brands claiming "organic" |
| OCS | Organic content only (chain of custody) | Cheaper alternative when processing claims aren't needed |
| OEKO-TEX Standard 100 | Chemical safety of the finished fabric | Baseline for any skin-contact fabric |
Ask for the certificate and the Transaction Certificate (TC) — a real GOTS supplier can produce both in minutes.
How to evaluate a cotton interlock wholesale supplier
A good supplier relationship matters more than the fabric price. Run every candidate through this checklist:
| Check | Why it matters |
|---|---|
| Samples first | Order swatches in 2-3 GSMs and wash-test them. Shrinkage, hand feel, pilling, and color hold only show after a wash cycle. |
| Yarn count | Confirm the count in writing — it drives hand feel more than anything else. |
| Certificates | GOTS / OCS / OEKO-TEX scope and Transaction Certificates on request. |
| MOQ | Minimums vary from a few hundred kg to tons. Know yours before negotiating. |
| Lead time | 30-60 days is normal for custom production from Asia; stock goods ship faster. |
| Price transparency | Ask for price by GSM + yarn count + finish (greige, bleached, dyed, printed), not a flat per-yard number. |
| US-based partner | A distributor or agent in the US means duty, logistics, and quality issues are handled on your side of the ocean. |
Sourcing note: working with a US-based sourcing agent
Buying direct from overseas mills works when you have the volume, the logistics capacity, and the appetite for risk. Many small and mid-size brands prefer working with a US-based sourcing agent who has already vetted the mill, handles import, and can arrange samples locally.
That is exactly the role Frontage Value plays: we help brands, retailers, and manufacturers source cotton intermediate products — from fabrics (gauze, muslin, jersey, interlock) to ready-to-use goods like towels, apparel, and home textiles — from verified mills in China. We handle supplier vetting, sampling, and US-side logistics, so you can buy with confidence. We are not limited to any single brand; our job is to match your product with the right factory. Ask us about wholesale terms through our site purcottonus.com, or email info@frontagevalue.com / rachelzhao@purcottonus.com.
FAQ
Is interlock the same as single jersey?
No. Single jersey is one layer of knit; interlock is two layers knitted together, making it thicker, firmer, and more stable. Interlock looks the same on both sides and resists curling — single jersey curls at the edges and has a distinct right/wrong side.
Is interlock good for baby clothes?
Yes — its softness, stability, and no-curl edges make it a staple for baby bodysuits, blankets, and toddler wear. For direct skin contact, choose organic (GOTS) or at least OEKO-TEX-certified interlock.
Does cotton interlock shrink?
Yes, but less than single jersey — typically 3-5% lengthwise on first wash unless pre-shrunk or compacted. Always wash-test samples and build shrinkage into your yield calculations.
Why is interlock more expensive than jersey?
It uses roughly twice the yarn (two layers knitted together), so the base material costs more. Buyers pay for structure, shape retention, and a plush hand that single jersey cannot match.
What GSM should I choose for interlock?
Lightweight (180-200) for babywear and summer tees, midweight (200-240) for polos and dresses, heavyweight (240-280) for thermal and structured garments.
Quick reference: interlock specs at a glance
| Spec | Lightweight | Standard | Heavyweight |
|---|---|---|---|
| GSM | 180-200 | 200-240 | 240-280 |
| Best for | Babywear, summer tees | Polos, dresses, loungewear | Thermal wear, outerwear, structured garments |
| Suggested yarn count | 30s-40s combed | 30s-40s combed | 20s-30s |
| Relative price | Low | Medium | High |
| Check | Notes |
|---|---|
| Wash-test samples | Shrinkage, hand feel, pilling, and color hold only show after a wash cycle. |
| Yarn count in writing | The single biggest driver of hand feel in interlock. |
| Certification documents | GOTS (organic + processing), OCS (content only), OEKO-TEX Standard 100 (chemical safety). |
| Itemized quote | GSM + yarn count + finish, not a flat per-yard number. |
| Lead time | Custom production from Asia: 30-60 days. Confirm first. |
| Pre-shrunk? | Uncompacted double knit shrinks 3-5% lengthwise on first wash — build it into yields. |
About Frontage Value
Frontage Value LLC is a US-based distributor, brand importer, and sourcing agent for consumer goods, food, and textile products. We help American brands, retailers, and manufacturers source cotton intermediate products and finished goods from verified mills in China — handling supplier vetting, sampling, and US-side logistics.
Questions about sourcing cotton interlock or other fabrics? We'd love to hear from you: info@frontagevalue.com
Photo: Unsplash
棉双面针织布（interlock）批发采购指南：规格与供应商
如果你摸过一条高级婴儿毯或一件结构感很好的 Polo 衫，觉得它比普通 T 恤更厚更软——你摸到的很可能就是双面针织布（interlock）。它是单面针织（single jersey）更安静、更高端的表亲：随着品牌越来越需要「洗后不变形、垂坠干净、亲肤柔软」的针织布，它在批发订单里出现得越来越频繁。
如果你是第一次采购棉双面针织布批发——无论你是服装品牌、婴儿服品牌，还是做裁剪缝制（cut-and-sew）——这份指南会讲清楚：interlock 到底是什么、哪些规格决定价格和品质、以及怎样筛选供应商不踩坑。
图片来源：Unsplash
什么是棉双面针织布（interlock）？
Interlock 是双面针织布：两层 jersey 织在一起，两面背靠背锁定。结果是一种两面完全相同的面料——裁剪时没有「正反面」要操心——而且不会像单面 jersey 那样卷边。
| 术语 | 含义 | 常见用途 |
|---|---|---|
| 单面针织（single jersey） | 单层线圈针织；轻薄、有弹性、易卷边 | T 恤、内衣、睡衣、婴儿连体衣 |
| 双面针织（interlock） | 两层 jersey 织在一起；更厚更挺、两面相同 | Polo 衫、高档 T 恤、连衣裙、婴儿毯、保暖服 |
同样纤维的 interlock 通常比 single jersey 贵 10-25%，因为它大约用两倍的纱线——但这笔钱买来的是结构：反复水洗不变形、垂坠干净、手感丰盈，这正是它成为婴儿服和高档服装首选面料的原因。
为什么现在要关注双面针织布批发
- 母婴童装是基本盘。 Interlock 的柔软、稳定、不卷边让它成为婴儿连体衣、毯子和幼童装的常备面料。有机 interlock 在这个品类尤其受欢迎。
- 高级基本款在上升。 消费者正从基础 T 恤升级到有结构感的 Polo 衫、连衣裙和家居服——正是 interlock 的垂坠和保形性值得多花钱的品类。
- 裁剪缝制工坊偏爱它。 因为两面相同、不卷边，interlock 裁剪损耗少、省人工——对小批量生产是实打实的成本优势。
决定价格和品质的规格
比较棉双面针织布批发报价时，先核对这些规格再谈价格：
1. GSM（克重，克/平方米）。 Interlock 通常在 180-280 gsm——比单面 jersey（120-220）更重。180-200 的轻薄款适合婴儿服和夏季 T 恤；200-240 是 Polo 衫、连衣裙、家居服的主力区间；240-280 的重磅款用于保暖服、外套和结构感服装。异常便宜的报价几乎一定意味着克重不足。
2. 纱支（yarn count）。 更细的纱（如 30s-40s 精梳棉）做出更光滑柔软的表面；更粗的纱（10s-20s）手感更粗、更重。询价时问清纱支——它是决定 interlock 手感的最大单一因素。
3. 成分与混纺。 100% 棉是默认要求。常见混纺：95/5 棉氨纶（要回弹）、60/40 或 65/35 棉涤（抗皱、降本）。每种混纺改变「手感故事」——确认报价对应的混纺比是你询价的那个。
4. 幅宽。 60 英寸（150 cm）是服装针织的标准幅宽；更宽的幅宽减少裁剪损耗但更贵。
5. 缩水率。 双面针织比单面缩水少，但仍会动——未经预缩或 compaction 整理的面料首次水洗通常纵向缩 3-5%。
6. 认证。 与其他棉面料相同的三张证书： GOTS（有机，从农场到成品，含加工标准）、 OCS（仅有机含量）、 OEKO-TEX Standard 100（成品化学安全）。婴儿服通常要求 GOTS 或至少 OEKO-TEX。
| 证书 | 证明什么 | 什么时候需要 |
|---|---|---|
| GOTS | 有机含量 + 加工环节的环境与社会标准 | 服装上标「有机」的品牌首选，黄金标准 |
| OCS | 仅有机含量（链式监管） | 不需要加工宣称时的便宜替代 |
| OEKO-TEX Standard 100 | 成品面料的化学安全 | 任何贴身面料的底线 |
要求看证书原件和交易证书（Transaction Certificate, TC）——正规 GOTS 供应商几分钟就能提供两者。
怎么筛选棉双面针织布批发供应商
好的供应商关系比面料单价更重要。用这张清单过一遍每个候选：
| 检查项 | 为什么重要 |
|---|---|
| 先要样品 | 订购 2-3 个克重的布样，自己下水测试。缩水、手感、起球、色牢度只有洗过才看得出来。 |
| 纱支 | 把纱支写进订单——它对手感的影响比任何其他因素都大。 |
| 证书 | GOTS / OCS / OEKO-TEX 范围证书和交易证书随时可查。 |
| MOQ（最小起订量） | 各厂差异很大——从几百公斤到几吨都有。先知道自己的承受量再谈判。 |
| 交期 | 亚洲定制生产通常 30-60 天；现货更快。 |
| 报价透明 | 要求按「克重 + 纱支 + 后整理（坯布/漂白/染色/印花）」报价，而不是笼统的每码价格。 |
| 美国本地合作方 | 由美国本土经销商或代理经手，关税、物流、品质问题都在你这一侧解决。 |
采购提示：和美国本地采购代理合作
直接向海外工厂采购，适合有量、有物流能力、也愿意承担风险的公司。很多中小品牌更愿意和已经验过厂、处理好进口、能在本地安排样品的美国采购代理合作。
这正是 Frontage Value 的角色：我们帮助品牌、零售商和制造商在中国采购棉中间品与成品——从面料（纱布、muslin、jersey、interlock）到毛巾、服装、家纺等制成品——由经过验证的工厂供货。我们负责供应商验厂、打样和美国的物流，让你采购无忧。我们不局限于任何单一品牌，我们的职责是为你的产品匹配最合适的工厂。批发合作请通过我们的网站 purcottonus.com 联系，或邮件 info@frontagevalue.com / rachelzhao@purcottonus.com。
常见问题
Interlock 和单面针织（single jersey）一样吗？
不一样。单面针织是一层线圈针织；interlock 是两层织在一起，更厚、更挺、更稳定。Interlock 两面相同、不卷边；single jersey 会卷边，且有明显的正反面。
Interlock 适合婴儿服吗？
适合。柔软、稳定、不卷边，是婴儿连体衣、毯子和幼童装的常备面料。直接接触皮肤的产品建议选有机（GOTS）或至少 OEKO-TEX 认证的 interlock。
棉 interlock 会缩水吗？
会，但比 single jersey 少——未经预缩或 compaction 整理的面料首次水洗通常纵向缩 3-5%。一定要自己下水测试样品，并把缩水算进用料损耗。
为什么 interlock 比 jersey 贵？
它大约用两倍的纱线（两层织在一起），基础材料成本更高。买家为结构、保形性和单面针织达不到的丰盈手感付钱。
Interlock 该选多少克重？
轻薄款（180-200）适合婴儿服和夏季 T 恤；中量款（200-240）适合 Polo 衫和连衣裙；重磅款（240-280）适合保暖服和结构感服装。
快速参考：interlock 规格速查
| 规格 | 轻薄款 | 标准款 | 重磅款 |
|---|---|---|---|
| GSM（克重） | 180-200 | 200-240 | 240-280 |
| 适合产品 | 婴儿服、夏季 T 恤 | Polo 衫、连衣裙、家居服 | 保暖服、外套、结构感服装 |
| 建议纱支 | 30s-40s 精梳 | 30s-40s 精梳 | 20s-30s |
| 相对价格 | 低 | 中 | 高 |
| 检查项 | 说明 |
|---|---|
| 样品下水测试 | 缩水、手感、起球、色牢度洗过才见真章。 |
| 纱支写进订单 | 决定 interlock 手感的最大单一因素。 |
| 认证文件 | GOTS（有机+加工）、OCS（仅含量）、OEKO-TEX Standard 100（化学安全）。 |
| 分项报价 | 克重 + 纱支 + 后整理，而不是笼统的每码价格。 |
| 交期 | 亚洲定制生产 30-60 天，先确认。 |
| 是否预缩 | 未做 compaction 整理的双面针织首洗纵向缩 3-5%，算入损耗。 |
关于 Frontage Value
Frontage Value LLC 是一家美国本土的分销商、品牌进口商与采购代理，业务覆盖消费品、食品与纺织品。我们帮助美国品牌、零售商和制造商从经过验证的中国工厂采购棉中间品与成品——负责供应商验厂、打样和美国端物流。
想咨询棉双面针织布或其他面料的采购？欢迎联系： info@frontagevalue.com
图片来源：Unsplash