knitted fabric types, Identifications of Interlock fabric
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Interlock knitted fabric is a type of double-knit fabric known for its thickness, durability, and smooth surface on both sides. Below are key techniques and characteristics for identifying interlock knitted fabric:
1. Structure and Appearance
Double-Sided Similarity:
Both sides of interlock fabric appear identical, with no distinction between the front and back. This is because it is made using two sets of needles that create interlocked stitches.
Smooth Texture:
The fabric has a smooth, flat surface on both sides, with no visible purl loops.
Thicker Fabric:
Interlock fabric is thicker and heavier compared to single jersey fabric due to its double-knit construction.
2. Stretch and Recovery
Stretch Properties:
Interlock fabric stretches less than single jersey but has better stability. It stretches uniformly in both widthwise (weft) and lengthwise (warp) directions.
Good Recovery:
The fabric recovers well after being stretched, maintaining its shape over time.
3. Curling Behavior
No Curling:
Unlike single jersey fabric, interlock fabric does not curl at the edges when cut. This is due to its balanced knit structure.
4. Weight and Thickness
Heavier Weight:
Interlock fabric is heavier than single jersey, with GSM (grams per square meter) usually ranging from 200 to 400 GSM.
Thicker Feel:
It feels more substantial and dense compared to other knitted fabrics.
5. Durability
High Durability:
The interlocked structure provides strength and resilience, making the fabric more durable than single jersey or ribbed fabrics.
6. Drape and Handle
Moderate Drape:
Interlock fabric drapes less fluidly than single jersey due to its thickness.
Soft and Comfortable:
It feels soft and comfortable against the skin, often used for apparel.
7. Gauge and Stitch Density
Fine Gauge:
Interlock fabric often has a finer gauge, with closely packed stitches that contribute to its smoothness.
High Stitch Density:
The fabric has a higher stitch density than single jersey, giving it a compact structure.
8. Common Applications
Apparel:
Used for making t-shirts, leggings, sportswear, loungewear, and baby clothing.
Household Textiles:
Frequently used in bed linens and pillow covers for its comfort and durability.
9. Testing Methods
Visual Inspection:
Look for identical smooth surfaces on both sides.
Edge Behavior Test:
Cut the fabric and observe if the edges remain flat (interlock) or curl (single jersey).
Stretch Test:
Stretch the fabric in both directions. Interlock fabric will stretch less than single jersey but will feel firmer.
Thickness and Feel Test:
Compare the thickness with other fabrics; interlock will feel denser and thicker.
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