Wound dressing with high moisture absorption and preparation method and application thereof

A wound dressing, high moisture absorption technology, applied in the direction of non-adhesive dressings, dressings, absorbent pads, etc., can solve the problem of weakening the sol fiber and not sticking to the wound, and achieve high moisture absorption performance, high wet strength performance, and reduced moisture absorption strength Effect

Inactive Publication Date: 2013-05-29
FOSHAN UNITED MEDICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dressing also exposes the non-sol sewing thread to the wound, which weakens the advantage that the sol fiber does not adhere to the wound

Method used

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  • Wound dressing with high moisture absorption and preparation method and application thereof
  • Wound dressing with high moisture absorption and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Feed the long-pile circular knitting machine WHCW-S18C-24B-1056 as the lyocell filament of 2x183dtex of non-sol fiber, prepare the bottom layer with a gauge of 14 needles / inch and a base cloth density of 18 mesh / inch.

[0037] Feed the calcium alginate fiber tops with a linear density of 6.7g / m as colloidal fibers, the fineness of the calcium alginate fibers is 2.65dtex, and the number of feeding heads is 18.

[0038] Blowing method: positive blowing.

[0039] Gained fabric grammage is 410g / m 2 .

[0040] The average free pile length of the fabric pile layer is 40mm.

[0041] The hygroscopicity of the fabric tested according to EN 13726-1:2002 / AC:2003 is 45g / 100cm 2 .

[0042] The longitudinal dry strength of the fabric is 150N / cm, the elongation is 90%, the wet strength is 145N / cm, the elongation is 93%, the transverse dry strength of the fabric is 41N / cm, the elongation is 266%, and the wet strength is 40N / cm cm, the elongation is 240%.

Embodiment 2

[0044] Feed the long-pile circular knitting machine WHCW-S18C-27A-1176 as the low-elastic polyester filament of 2x167dtex of non-colloidal fiber, prepare the bottom layer with a gauge of 14 needles / inch and a base cloth density of 20 mesh / inch.

[0045] Feed calcium / sodium alginate fiber tops with a linear density of 6.7 g / m as colloidal fibers, the fineness of the calcium / sodium alginate fibers is 2.65 dtex, and the number of feeding heads is 9.

[0046] Blowing method: back blowing.

[0047] Gained fabric grammage is 320g / m 2 .

[0048] The average free pile length of the fabric pile layer is 12mm.

[0049] The hygroscopicity of the fabric tested according to EN 13726-1:2002 / AC:2003 is 32g / 100cm 2 .

[0050] The longitudinal dry strength of the fabric is 109N / cm, the elongation is 128%, the wet strength is 100N / cm, the elongation is 115%, the transverse dry strength of the fabric is 44N / cm, the elongation is 192%, and the wet strength is 41N / cm cm, the elongation is 168...

Embodiment 3

[0052] Feed the long-pile circular knitting machine WHCW-S18C-27A-1176 as the low-elastic polyester filament of 2x167dtex of non-colloidal fiber, prepare the bottom layer with a gauge of 14 needles / inch and a base cloth density of 20 mesh / inch.

[0053] Feed as the carboxymethyl cellulose wool top that the linear density of sol fiber is 6g / m, its carboxymethyl cellulose fiber fineness is 2.1dtex, and feeding head number is 9.

[0054] Blowing method: back blowing.

[0055] Gained fabric grammage is 300g / m 2 .

[0056] The average free pile length of the fabric pile layer is 8mm.

[0057] The hygroscopicity of the fabric tested according to EN 13726-1:2002 / AC:2003 is 33g / 100cm 2 .

[0058] The longitudinal dry strength of the fabric is 105N / cm, the elongation is 120%, the wet strength is 95N / cm, the elongation is 105%, the transverse dry strength of the fabric is 42N / cm, the elongation is 182%, and the wet strength is 39N / cm cm, with an elongation of 165%.

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Abstract

The invention relates to a wound dressing with high moisture absorption and a preparation method and an application thereof. The wound dressing comprises a bottom layer formed by non-sol fibers and a stuffed layer formed by sol fibers, wherein the sol fibers are woven on the bottom layer through a weaving mode and have the free stuffed length of 1-100mm, preferably 5-50mm. The wound dressing can be used for nursing chronic wounds such as venous stasis ulcers, pressure ulcer, diabetic foot ulcer and other chronic ulcer wounds comprising hole type or recessed type ulcer wounds.

Description

technical field [0001] The invention relates to a wound dressing with high hygroscopicity, its preparation method and application. Background technique [0002] As we all know, it is desirable to use modern wound dressings with high moisture absorption in the care of ulcerative wounds, especially fibrous wound dressings with sol properties, such as calcium alginate wound dressings, chitosan wound dressings, modified cellulose wound dressings Wait. These dressings are characterized by high moisture absorption and high moisture retention, thereby providing a relatively moist environment for wound healing. However, a significant disadvantage of this type of dressing is the low strength of the dressing, especially the low wet strength. Wound dressings with low wet strength are prone to breakage during removal, making wound care more difficult and more likely to cause wound or surrounding skin infection. [0003] Generally, the wound will produce a large amount of exudate duri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L15/60A61L15/42A61L15/28A61L15/26A61L15/32A61L15/44
CPCA61L15/28A61L15/60A61L15/26A61L15/22F04C2270/0421C08L5/04C08L1/00C08L5/08C08L67/00A61F13/00012A61F13/00017A61F13/00042A61F13/00987A61F2013/00238B65B5/045B65B55/08B65B55/16
Inventor 王晓东莫小慧
Owner FOSHAN UNITED MEDICAL TECH
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