Uncontrolled Copy - for reference only.


  1. INTRODUCTION

    The purpose of this procedure is to define the general workmanship requirements for all textured yarns on paper tube. These requirements are referenced by individual product specifications or procedures, which may also note exceptions and physical properties. Uncontrolled copy.

  2. SPECIFICATION

    1. Dirt/Grease– No soiling or grease spots allowed. It is acceptable if the spots can be cleaned off. For dirt on the outside surface – air strip yarn to waste. For dirt on the ends – clean with sprayer. If dirt does not come off, reject to off grade.
    2. Wound in waste – None allowed. Strip if possible to correct. Otherwise reject to rewind.
    3. Damaged/bumped – None allowed. Strip if possible to correct. Otherwise reject to rewind.
    4. F oil contamination – Dry or regular oil yarn must not be contaminated with F Oil when viewed under a packing table black light, unless very slight (not immediately visible). Strip to clean if possible. Otherwise reject to off-grade.
    5. Broken Filaments- 8 per end max allowable for standard package. 10 per end max allowed for large package.
    6. Texture color/appearance – No overly shiny or dull yarn allowed. Dull, bright, dye color, etc. per limit samples.
    7. Fluorescent Oil- If applicable, there needs to be even coverage when viewed under a blacklight.
    8. Crossed Ends- Nose end crosses are allowed, unless they appear matted or too numerous to count. Up to two 1 inch crosses on the tail end are allowed or crosses < ¼" from the tube are allowed.
    9. Slubs/Loops/Kinks – None allowed.
    10. Proper Wind- No patterns or bands. No high or falling off edges. No excessive hard/soft packages.
    11. Tube Defects- No crushed, nicked, or cut tubes, especially on the nose end.
    12. Ridges/Grooves- No ridges or grooves > 1/8 inch high or deep.
    13. Texture - Yarn should bulk up when stretched several times and relaxed. No end should lack any bulk (raw end). 4 ply through 6 ply may have slight lean ends (end lacks full bulk), otherwise lean ends are not allowed. Also check the tail.
    14. Air tacks (entanglement) – Minimum 12 tacks per foot for regular air. Low air should have some evidence of air tacks.
    15. Twist – For single ply yarns only, Z twist must rotate clockwise when allowed to relax and S twist rotates counter-clockwise.
    16. Proper ply - Count the number of ends if the yarn is three ply or more. Air strip the yarn to correct if possible. Also check the tail.
    17. Latching – Filaments or plies that separate when winding off package are not allowed.
    18. No tail - If there is no tail, then pack one large no tail package per layer. If excess no tail packages are found then reject to rewind. The minimum tail length is 1 wrap around the tube. If tail is too short, take a short length of yarn and tie it on to the tail. For parallel yarn smalls and no tails are allowed.
    19. Multiple tails - If there are multiple tails, then correct if possible. Otherwise reject to rewind.
    20. Tube Clearance – from yarn roll to tail end of tube should be between 3/8" min. and 1"max. (5/8" nominal target.)
    21. Oversize or Small package - Check suspect packages with appropriate gauge, scale, diameter tape, or balance. Do not put excessive minimum size packages in one case. See QCF048 for Gauges. See specific product specification for other special sizes and weights.

      Yarn package size Max Diameter Min Diameter (inches) Nominal (inches)

      Parallel Yarn Max: 9.5 Min: 3.5 9

      8" Yarn Max: 8.5 Min: 5 8

      7" Normal Sapona Max: 7.75 7.25

        4-6 ply Min: 5.5

        1-3 ply Min: 4.5

      6" Yarn Max: 6.5 Min: 4.5 (Min. 3.5 1ply) 6

      5" Yarn Max: 5.5 Min: 4 5

      Smalls Min: 4 (Min. 3.5 for parallel yarn)

      Weight (ie: 1LB, 3LB) +0.25 lbs -0.25 lbs

      Allow one small tube per layer. None under 4 inches. No minimum for internal use.

    22. Packaging - Yarn packages are bagged with high density vented poly bags and packed into box, tail end down, so there is as little movement as possible. Packages are not forced into the box. Box goes on conveyor to scale open with flaps taped down and inspector card GF007 placed in one of the tubes on top. The proper box is determined as follows or by special instruction from Department Head:

        11" tube, lots beginning with 3, 4, or 8 Sapona #211 box, #1 pad

        10-1/4 " tube, lots beginning with 1, 2, or 9 Sapona #210 box, #1 pad

        Lots ending with P Plain box, #210 or #211 box

        All boxes are 350 psi corrugated and may be reused or recycled.

        All box bottoms are taped with 72mm, clear acrylic tape and strapped shut with plastic strap.

    23. Weighing – Yarn is weighed per procedure TEXTSOP0068 or COVSOP0077 as is with no allowance for moisture regain or finish. The case is weighed to determine gross weight. The net weight is calculated based on number of tubes and standard tare weight of all packaging materials.

    24. Case Labeling – Cases are labeled and individually numbered with computer transfer printed, stick on, three part label SHIPF014. In addition, each case has tube label SHIPF015 and shipping label SHIPF019. Labels have an important warning that if the Lot number on the container differs from previous shipments, keep separate unless your test prove this unnecessary.

      Guarantee/Disclaimers

    25. Sapona does not guarantee the dyeability of nylon products under 70 denier in multi-feed circular knit, warp knit or woven fabric applications. Sapona only guarantees that the yarns are properly textured. It is up to the customer to determine the suitability of these fine denier yarns in non-hosiery applications.

    26. Dupont 70/46 Tactel is not guaranteed for dyeability.
    27. Sapona does not guarantee mid-denier yarns dyed with rate sensitive acid dyes. Critical shades and shades with high wet fastness are likely to exhibit dye rate sensitivities. Rate sensitive dyes also include direct or neutral dyeing and premetallized classes.
    28. Yarn should be at least 3 days old before use and not more than 1 year old for critical applications.

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