A double-sided heterosexual wound dressing based on electrospinning technology and its manufacturing method

Abstract

The invention discloses a double-sided opposite-polarity adhesive bandage based on an electrostatic spinning process and a preparing method of the adhesive bandage. The double-sided opposite-polarityadhesive bandage comprises adhesive tape, a wound nursing layer and release paper from outside to inside. The adhesive tape is hollowed out to form a ventilating window. The wound nursing layer comprises a protection layer and a double-sided opposite-polarity applying layer. The protection layer has a hydrophobic property. The outer side and the inner side of the double-sided opposite-polarity applying layer have a hydrophobic property and a hydrophilic property. The protection layer and the double-sided opposite-polarity applying layer are each prepared through the electrostatic spinning process, and the connecting faces of the protection layer and the double-sided opposite-polarity applying layer are integrally formed. The inner side of the double-sided opposite-polarity applying layer is attacked by plasmas to have a hydrophilic property. The preparing method includes the steps of cutting the adhesive tape, preparing an electrostatic spinning solution, preparing a hydrophobic applying layer, preparing the double-sided opposite-polarity applying layer, adding the protection layer and assembling the finished product. The outer side of the adhesive bandage has the hydrophobic property and can resist bacteria and water and is breathable; the inner side of the adhesive bandage has the hydrophilic property and can rapidly absorb wound seepage and provide a good environment for wound healing; in addition, the adhesive bandage has good biocompatibility and degradability and is simple in preparing process and excellent in performance.

Description

technical field [0001] The invention belongs to a medical product and its manufacturing method, in particular to a double-sided heterosexual wound plaster based on an electrospinning process. Background technique [0002] When the skin forms small superficial wounds, abrasions, etc., the bandage can protect the wound surface from being infected by bacteria. However, the existing wound plasters cannot have both hydrophobicity and air permeability, and non-woven fabrics are prone to adhesion after long-term contact with the wound, which is not conducive to wound healing, and is not easy to remove, causing pain to users. In addition, band-aids are disposable products, widely used and consumed in large quantities. At present, band-aids are mostly made of non-degradable materials, and the harm to the environment caused by the medical waste formed after use cannot be ignored. Contents of the invention [0003] The technical problem to be solved by the present invention is to pr...

AI Technical Summary

Problems solved by technology

However, the existing bandages cannot have both hydrophobicity and air permeability, and the non-woven fabric is prone to adhesion after long-term contact with the wound, which is not conducive to the healing of the wound, and is not easy to remove, which brings pain to the user.

In addition, band-aids are disposable products, which are widely used and consume a lot. At present, band-aids are mostly made of non-degradable materials, and the harm to the environment caused by the medical waste formed after use cannot be ignored.

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