sock tutorial

Download Sock Tutorial

Post on 01-Feb-2016




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Basic knowledge of sock


  • Sock tutorial

    Factory : IL Bangla (Interloop) - NarsingdiVisited date : 31st Oct 2015

    Participants : Anuruddha Indatissa along with Howlader Jashim Uddin & Nayan Majumder.

  • Anatomy of a sock & Shoe size vs Sock size



    Top welt Sock Size


    3.0 Baby3.5 004.0 0 - 14.5 1 - 25.0 3 - 45.5 4 - 56.0 6 - 76.5 7 - 87.0 9 - 107.5 10 - 118.0 12 - 13 18.5 13 - 1 1 - 2 2 - 39.0 2 - 3 3 - 4 4 - 59.5 4 - 5 5 - 610.0 6 - 6 6 - 710.5 7 - 8 8 - 911.0 8 - 9 9 - 1011.5 9 - 10 10 - 1112.0 10 - 11 11 - 1212.5 11 12 - 1313.0 12 - 1214.0 13 - 1415.0 14 - 1616.0 16 - 18

  • Sock Shape / Type


    Standard socks: over-the-calf / dress / long / tall / knee-high / executive / full-length socks mid-calf / crew / half-length socks ankle / anklet / sport / short / quarter-length socksFormal attire traditionally requires long/dress socks (to prevent any flashes of visible skin, and because they're less prone to bunching/falling).

    Unseen Socks: no-show / liner / loafer / invisible / ped / low cut/ footie socksThe Naming of unseen socks is wildly non-standard. Socks named "no-show" might be anything from minimal all the way up to the ankle bone.

    Right now LF developing 3 socks for customer MEIJER

    Crew (Standard Sock)

    Low Cut (Unseen)

    No Show (Unseen)

    Main different between Low cut &

    No Show is Top Welt height.

    Low cut style Top Welt height is bigger than No Show style

  • Sock Heel types


    There are varies type of sock heels & during our visit we have studied below 3..

    Y heel = Gives more room for fitting. Real Heel = Straight Pouch Heel

    Pouch heel

    Real heel = Straight

    Y heel

    Pouch heel

    Real heel = Straight

    Y heel

  • No show

    Low Cut


    Arch support

    Arch support use in order to hold sock in place i/of slide around inside shoe.

    No show

    Low Cut

    Without Arch support style

    With Arch support style

  • Sock Measurements


    1. Most of customer provide original sample & manufacture follow the same.2. Manufacture well aware Shoe size vs Sock size. So they make sure to maintain standard measurements.3. According to Interloop experience they prefer below measurements for the sock.

    Without arch No show & Low cut styles

    Without arch Crew With arch No show & Low cut styles

    With arch Crew

  • Sock Sizing & fitting


    Sock sizing with range. That range will be Lower end of stretch & upper end of stretch.

    Below are the example: Size 9-11 for Young Mens Size 10 13 for Regular Men's Size 13 16 for Plus

    For USA customers need to use NAHM (National Association of Hosiery Manufactures) foot form to check fitting.For European customers using leg shape forms.

    For USA customers

    For European customers

  • NAHM foot form - National Association of Hosiery Manufactures board


    Toe gore

    Heel gore

    The seams of the sock at the heel & toe should line up in the center of the holes on the NAHM board.

  • NAHM board fitting


    This is a good fit. The sock is hugging the board & all seams line up with the proper holes. No excess fabric at the toe

    This sock is too big for this board. Seams do not align with holes & sock drops off the board.

    Another bad fitting. Although seams are spaced in the correct alignment holes, there is too much bulk at the top of the sock.

  • Important tips to use NAHM foot form


    1. Finished socks should be tested both before & after launderings (following AATCC test method 135).

    2. Stretch socks must fit both the lower and upper ends of a specified size range. For example: 10-13 sock must neither fit too loose on size 10 form nor too tight on size 13 form.

    3. Each sock can only be sized one time & the order of sizing must always be smaller NAHM first then larger NAHM board.

    Finished sock after wash. First check hand feel & then measure.

    Then select the NAHM form representing the lower end of the intended sizing range. Pull the sock on the form without stretching the fabric and then smooth out the wrinkles.






















    After that select the NAHM form representing the higher end of the intended sizing range. Pull the sock on the form stretching the sock fabric to maximum extension without breaking the sock fibers.

    Do not measure fitted sock.Do not Fit again. This sock can not use again.

  • Yarn composition


    Yarn details & fiber composition differ design / style & customer wise.


    Yarn details: Welt + Body Main Yarn # 20/1 RW spun polyester 100% Body Plating yarn # 150-20 6% poly cover spandex RW Rib + Welt Plating yarn # 150D polyester RW Heel & toe yarn # 20/1 Grey H-12 Elastic # 140-75 15% poly cover spandex RW Tie down # 70/24/4 DN TXD RAW WHITE NYLON 100% Linking Yarn # 30/2 DN TXD RW 120101 NYLON 100% Motif # 70/2 nylon ( Only for SL-7)

    Fiber Composition: 85% Polyester 12 % Cotton 2% Spandex 1% Nylon

    Purpose of Plating yarn:

    Plating is the process of laying a yarn (usually a spandex yarn) behind the body yarn in a sock to provide a fabric that has stretch properties. Plating provides for a range of fit. Example: Size 9 to size 11 sock.

    Main yarn

  • Sock knitting machine


    There are varies type of knitting machines

    Example: Machine Gauge # 9 , Needle 144, Diameter # 4This machine can perform all type of socks across all the size range.

  • Quality controlling check points in bulk production


    QA inspection table in production floor

    Stretch test.Every 8 hours check stretch check & maintain records

    Processing Lab:This lab fully dedicate to perform all the necessary test during production.

  • Toe Joining


    Interloop Bangladesh using automated machine to join Toe.Apart from toe joining this machine will turn right side out.

    Toe Joining Sock turn right side out

  • Key production quality defects


    1) Inside thread can not have any bridge. This is Critical defect..

    2) Toe joining can not be way / puckering.

    2) Knitting holes.

    2) Stain. / Dirt marks

    2) Yarn shorts.

    Toe joining can not be way / puckering.

    Inside thread can not have any bridge. This is Critical defect.

    Bridge not acceptable

    Thread end not too short or too long

  • Washing


    It is mandatory to wash socks with necessary chemicals & softeners as per the standered

  • Pressing


    Using polished aluminum leg form to press socks. This aluminum leg form stretch the sock to require size to achieve spec measurement.Then using automated pressing machine to press socks


    This aluminum leg form is to achieve spec during pressing

    This NAHM board using to check fitting of same size sock.

  • In house Quality Assurance lab


    All the incoming raw martials test from fty in house Quality Assurance lab before issuing to knitting department.Below are some of the test that they perform in in-house lab

    1. Wicking test2. Yarn twisting tester (twill per inch)3. Yarn count test.4. Crocking test.5. Color fastness to washing.6. Color fastness to perspiration.7. Yarn count checking.8. Yarn shrinkage test9. Yarn wrapping test.

    Vertical wicking test

    Crocking test

  • Training & development in the workplace.


    Interloop Bangladesh management well understand the Importance of Training & Development in the Workplace.

    For new joiners Addressing Weaknesses Improved Employee Performance Consistency Employee Satisfaction

  • Thank You