Textile Wrappers

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Textile Wrappers
2015-10-25 20:26:48
SPRO 227
Show Answers:

  1. What are woven wrappers
    fabric material made by weaving
  2. woven wrapper is also know as
    reuseable flat wrappers or linens
  3. total sum of yarns in both weaving directions in a woven wrapp is
    140 threads per square inch
  4. Define thread count
    is the total number of threads over a surface area of one square inch
  5. the minimum count required as a standard for packaging is
    140 TC
  6. woven wrappers are made from
  7. Muslin by itself is not a _________? Example?
    • not a good microbial barrier 
    • the space between the yarns is huge compared to the size of an average micro-organism
  8. surgical drapes made from 100% muslin can be a source
    of nosocomial infection
  9. how to from a better muslin barrier
    by creating a tortuous path through two sheets of two-ply muslin
  10. what are the standards for barrier qualities? Example?
    • class A: must be resistance to aerosols, huck towel and scrub
    • class B: must repel water but not liquid-proof, reusable wrapper and gown
    • class C: provide a liquid barrier, drape used in the OR
    • class D: must act as a viral barrier, surgical gown
  11. what does class B, C, D has in common
    the material is fused with an additional barrier material that may include a membrane, laminate, coating, film
  12. Class A is provides
    the least effective barrier
  13. class D textiles provide
    most effective barrier
  14. all of the classification has something in common what is it
    allow stream to penetrate
  15. List three example of advantage of woven wrappers
    • easy to use 
    • durable and resistant to tearing and abrasions. stronger than non-woven wrappers 
    • cost-effective
  16. List three example of disadvantage of woven wrappers
    • must be carefully inspected for holes, lint and stains 
    • not compatible with hydrogen peroxide gas plasma sterilization 
    • considered the least effective barrier wrapper
  17. after woven wrapper has been used what must be done
    must be cleaned between each use
  18. what is the advantage of laundering
    • add moisture to the fibres  
    • prevent extra amounts of steam from being absorded by the textile during steam sterilization
  19. what is superheat
    when excessive amounts of steam is absorbed by the textile because it is too dry during sterilization and cause the sterilization chamber to become too dry
  20. what are someone of the laundering duties
    • inspection 
    • repair
  21. what are the eight basic criteria for laundering reusable textiles
    • linen soiled with blood and body fluid must be in leak-proof containers 
    • All personal dealing with linen soiled must follow the standard precautions 
    • reusable woven material degrade with each cleaning process: marking grind 
    • lose fibre with each laundering 
    • must be tumble dried instead of flat work iron because force lint and other debris into the textile weaves 
    • must be delinted with adhesive rollers: inspecting and folding 
    • sit for least 24 hours before allow for rehydration
  22. the basic criteria for inspection fo reusable textile are
    • textile that are stained with oily spots, blood, plasma, gummy hard surface tape or unknown substance are no good 
    • are inspection over a well-lit light table or light bar in order to detect tears, holes, worn spots, excessive lint and other defect
  23. Non-woven is
    a fabric-like material by a method other than weaving
  24. non-woven is also called
  25. how many time can non-woven be used
    one time use
  26. The structure of a non-woven material is made using a combination of four main elements? example?
    • fibre composition:combination of materials 
    • web formation: how the fibers are assembled
    • binding system: how the fibres of the web are held
    • finishing treatment: addition of chemical or mechanical treatment
  27. what are the common methods for web formation
    • wet-laid 
    • spunbonded 
    • meltblown
  28. what are the method use to make non-woven sterilization wrappers
    • wet-laid 
    • spunbonded meltbown spunbonded 
    • spun-lace
  29. what is spunbonded melthblown spunbonded
    composite web made from two different processes
  30. what are the two distinct process of SMS
    spunbonded and melthbown
  31. what is the SMS the best material to choose form
    it can go through all three sterilization method that is why it is the  most suitable wrapper material
  32. Spunbonded is
    a fine thread-like filaments that is formed by forcing a hot plastic through a device
  33. Meltblown web is
    short threads formed from plastic hops that are melted and blown from an extruder
  34. List three disadvantage of non-woven wrappers
    • create more waste
    • has more memory 
    • storage sustem required
  35. List three advantage of non-woven wrappers
    • low labour cost 
    • can be used in Eto, steam, hydrogen peroxide gas plasma sterilization methods 
    • provides an excellent barrier
  36. two basic techniques for wrapping
    • envelope fold 
    • square fold
  37. two specific wrapping methods
    • sequential 
    • simultaneous
  38. what is envelope fold sued for
    small packs
  39. what is square fold used for
    larger packs
  40. sequential wrap method uses
    two layer of wrapping material that are individually assembled
  41. simultaneous method used
    two layers of wrapping material that are applied at the same time