Sweater Label Sewing & Embellishment

Purpose of Label Sewing

Labels serve multiple functions:

• Brand identity – logo, branding, premium look
• Legal compliance – country of origin, fiber content
• Size identification – helps retail & customers choose correct size
• Care guidelines – washing, drying, ironing instructions
• Traceability – PO number, style code, batch details
• Customer comfort & usability

Types of Labels Used

a) Main / Brand Label

• Woven or satin material
• Placed at the back neck seam
• Carries brand name or logo

b) Size Label

• S, M, L, XL, numeric or dual sizing
• Usually attached under/beside the main label

c) Care Label

Includes:

• Fabric composition
• Washing & drying instructions
• Country-of-origin text
• Symbols for care compliance (ISO, ASTM, etc.)

d) Country of Origin Label

Legally required for export
Example: Made in Bangladesh / Made in Vietnam / Made in China

e) Flag Label / Side Tab

Small decorative branding label attached at side seam or hem.

Label Sewing Quality Standards

A properly sewn label should:

• Be centered & aligned
• Have clean stitches
• Lay flat with no puckering
• Have no loose threads
• Use correct label type & size
• Not irritate skin

Common Label Sewing Defects

• Wrong label used (wrong size, wrong brand)
• Misaligned placement
• Loose stitches
• Puckering around neckline
• Wrong information on label
• Sharp edges or irritation

Button, Zipper & Badge (Patch) Attachment

Critical garment construction and decorative operations that add functionality, aesthetics and brand identity.

After main assembly and before final finishing/packing, sweaters often require buttons, zippers and badges/patches. These components must be attached with high precision to ensure durability, comfort, safety and compliance with buyer and export standards.

This chapter provides a comprehensive explanation of the process flow, machinery, techniques, quality checks and common defects for each component.

Button Attachment in Sweaters

Buttons are used in:

• Cardigans
• Henley neck sweaters
• Plackets
• Women’s fashion styles
• Kid’s sweaters

Correct button attachment is crucial because sweaters are stretchable and require reinforced stitching to withstand repeated use.

Types of Buttons Used

• Plastic buttons (most common)
• Wooden buttons (fashion styles)
• Metal buttons
• Horn/coconut buttons
• Resin buttons
• Shank buttons
• 2-hole & 4-hole flat buttons

 Button Sewing Machines

• Flat button sewing machine
• Shank button sewing machine
• Button attachment with bartack reinforcement
• Manual hand sewing (for delicate styles)

Button Sewing Techniques

a) Lockstitch Button Sewing

Most common method.
Ensures:

• Strong hold
• Uniform look
• Proper alignment

b) Cross-stitch or Parallel Stitch

Used based on button type.

c) Shank Button Attachment

Used on:

• Fashion styles
• Thick sweaters
• Jackets

d) Reinforced Button Sewing

Using:

• Bartack
• Under-taping
• Backing button (support button inside)
• Prevents button popping off from knit stretch.

Button Placement Rules

Placement must follow the tech pack.

• ✓ Buttons must be evenly spaced
• ✓ Must align perfectly with buttonholes
• ✓ Checked with templates and measuring guides
• ✓ Avoid stretching the knit during sewing
• ✓ Keep seam flat and irritation free

Button Quality & Safety Standards

• ✓ No sharp edges
• ✓ Must pass pull-strength test (15–90 N depending on buyer standard)
• ✓ Must withstand washing cycles
• ✓ Childrenswear buttons require higher pull strength

Common Button Defects

• ✓ Loose button
• ✓ Wrong button size
• ✓ Misaligned buttons
• ✓ Buttonhole mismatch
• ✓ Cracked or damaged buttons
• ✓ Color variation in button batch

Zipper Attachment in Sweaters

Zippers are commonly used in:

• Cardigans
• High-neck sweaters
• Hooded sweaters
• Sports knitwear
• Children’s sweaters

Zipper attachment in knitwear is technically challenging due to fabric stretch.

Types of Zippers Used

• Nylon coil zipper
• Vislon (plastic molded) zipper
• Metal zipper
• Invisible zipper
• Reversible zipper
• Chunky gauge zippers (popular in winter styles)

Zipper Attachment Machines

• Single needle lockstitch machine
• Zipper foot sewing machine
• Overlock machine (for biting seam)
• Flatlock machine (optional for decorative zippers)

Zipper Attachment Process

Step 1: Pre-attaching Preparation

• Center front measurements taken
• Panel edged evenly

Step 2: Zipper Position Marking

• Using chalk/heat erasable pen
• Ensure straight alignment

Step 4: Final Sewing

• Sew zipper on both sides
• Ensure smooth, flat application
• Strengthen bottom stop area

Step 5: Top Stitching (if required)

Added to:

• Reinforce
• Improve aesthetics

Step 6: Cleaning & Finishing

• Remove excess yarn, threads
• Check zipper operation

Quality Requirements

• Zipper must open & close smoothly
• No waviness or rippling on knit fabric
• Zipper teeth must align perfectly
• No needle damage to zipper tape
• Bottom and top stops must be secure
• Must maintain alignment after wash

Common Zipper Defects

• Wavy zipper (fabric stretched during sewing)
• Misaligned seam
• Broken zipper teeth
• Hard slider movement
• Top-stop missing
• Wrong zipper length used
• Color mismatch
  

Badge / Patch Attachment

Badges (also called patches) add branding, decoration and design value.

Types of Badges / Patches

• Embroidered badges
• Felt patches
• Terry patches
• Leather or PU patches
• Silicone / Rubber patches
• Fabric appliqués
• Knit patches

Badge Placement Areas

Common placements:

• Chest
• Sleeve (especially forearm)
• Shoulder
• Side body
• Hem rib
• Back neck (outer)

Placement must follow:

• Tech pack
• Size scaling
• Aesthetic symmetry

Badge Attachment Methods

a) Lockstitch Sewing

Used for most fabric and embroidered patches.

b) Zigzag Sewing

Used for:

• Felt
• Fashion patches
• Appliqué styles

c) Heat Press (Thermo Patch)

Used for:

• Silicone patches
• PU badges
• Thermal-adhesive woven labels

Temperature, pressure and time must be controlled.

d) Hand Stitching

Used for delicate or uneven patches.

Embellishment in Sweater Manufacturing

All decorative elements added to enhance appearance, style or brand value.

Sweater embellishment includes any value‑added process applied after knitting and before final finishing.
The goal is to improve aesthetics, highlight design features and meet fashion or brand requirements.

Types of Embellishments for Sweaters

a) Embroidery

Types:

• Flat embroidery
• Chain-stitch embroidery
• Chenille embroidery
• 3D puff embroidery

Used for:

• Logos
• Motifs
• Brand designs
• Decorative textures

b) Printing on Sweaters

Although less common, printing is used on:

• Cotton sweaters
• Lightweight jacquard knits
• Cut‑and‑sew sweater fabric

Printing types include:

• Rubber print
• Pigment print
• Flock print
• High-density print
• Foil print
• Glitter print
• Heat transfer print

c) Appliqué Work

Appliqués are patched graphics or fabrics sewn onto sweaters.

Types:

• Felt appliqué
• Fabric appliqué
• Embroidered patches
• Terry patches
• Leather or PU badges

d) Sequins, Beads & Hand Embellishment

Used in:

• Women’s fashion sweaters
• Boutique / premium styles
• Kids’ fashion designs

Techniques:

• Beadwork
• Sequin stitching
• Stone fixing
• Hand embroidery

e) Metal Accessories

• Rivets
• Eyelets
• Decorative pins
• Snap buttons

Requires:

• Careful attachment
• No sharp edges
• Zero needle breakage risk