1. Knit Fabrics Constructed by looping yarns together
One loop of yarn is pulled through another loop
New compared to weaving
One loop of yarn is pulled through another loop. The loop can be varied to create different patterns & textures

2. Methods of Knitting
Weft Knitting
Warp Knitting

3. Weft Knitting
Loops are made as yarn is added in the crosswise direction
Weft knits can be made by hand or by machine and can be either circular or flat
Single yarn is used
Horizontal parallel rows are formed
Weft knitting machine can be either circular or flat. Circular machines knit the fabric in the shape of a tube: socks, tihgts
Flat knitting involves very little sewing

4. Most Common Type of Weft Knits
Plain/Single Knit: made of a single needle knitting machine
Purl Knits
Rib knits are single knits
Examples: Hosiery, T-shirts, and lingerie

5. Ribbed Knit
Vertical ribs or columns of stitches that alternate on the F & B
Used as neck, wrist and bottom bands on sweaters and jackets

6. Warp Knits Yarn runs length of fabric
Vertical parallel rows are formed
Done only by machine uses multiple yarns
Examples
Tricot – underwear
Raschel – lace fabric & trims.
Milanese – stronger, smoother & more expensive than
tricot.
Resistant to runs
Relatively easy to sew

7. Examples Tricot – underwear Raschel – lace fabric & trims.
Milanese – stronger, smoother & more expensive than
tricot.

8. Tricot Knits
Very fine vertical wales on the RS and crosswise courses on the back
End uses: Most frequently used in lingerie and underwear.

9. Raschel Knits
May have an extra yarn stitched in to produce a textured or patterned design
Open and lacy knits can be created

10. Double Knit 2 sets of needles and 2 yarns are used. (Warp knit)
Cannot be separated into 2 layers
Sturdy fabric that will not stretch or sag because it has enough “give”

11. Seamless Knits Newest trend in knitting Feel good Comfortable
Slimming effect on body
Garments typically made this way:
Knit tops
Skirts
T-shirts

12. Why are Knits Popular? Development of manufactured fibers
Answers the need for comfort
Stretch
Can be warm in the winter and cool in the summer
Resist wrinkling
Little, if any ironing is needed
Versatile
Made from any fiber and any yarn
Development of manufactured fibers well suited for knits

13. Other Fabric Construction
Felt
Short wool fibers
Looks like fish scales under microscope
Use of heat, moisture, and pressure make fibers into fabric
Thick, stiff, and warm
Easily molded into shapes
Used for hats, handcrafts, and household items

14. Other Fabric Construction
Non Woven Fabrics
The use of heat melts fibers together to make fabric
Used in disposable items
Diapers, hospital sheets, bandages, towels, cleaning cloths
In garments used as interfacing which provides shape and prevents stretching
Cheap

15. Other Fabric Construction
Bonded Fabrics
Glue one fabric to another
Have more body than single fabrics
Wrinkles less
Warm, but not heavy
Used in skiwear or winter coats

16. Other Fabric Construction
Quilted Fabrics
Adding batting between 2 layers of fabric
Machine stitching hold 3 layers together

17. Difference between Knit and Woven Fabrics
Why is it important to know the difference…and a little review…

18. Review Time
Single-knit jerseys, ribbed knits, and jersey knits are examples of which fabric construction?
Weft
Yarns run the length of the fabric forming parallel vertical rows.
Warp
A knit with an extra yarn stitched in to give it texture or design
Raschel
Knit made w/2 sets of needles and 2 sets of yarns.
Double Knit
Knit most commonly used in lingerie and underwear
Tricot