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Silica gel scar plaster and preparation method thereof

A technology of silicone gel and scar, applied in the field of medical dressing and its preparation, can solve the problems of increasing use cost, waste of resources and the like, and achieve the effects of improving breaking strength, saving resources and reducing use cost

Inactive Publication Date: 2020-08-04
苏州汇涵医用科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As is still known in the industry, the feature of silicone gel scar plasters is that they can be washed and reused repeatedly. However, the silicone gel scar plasters prepared including but not limited to the above-mentioned patents will show signs of deterioration once they are cleaned during actual use. The backing layer of the polyurethane film is separated from the silicone gel layer, which affects the continued use, thus causing waste of resources on the one hand, and increasing the cost of use on the other hand

Method used

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  • Silica gel scar plaster and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A) Prepare the glue-coated base layer. First, corona treatment is carried out on the side surface of the backing layer 1 towards the medical adhesive layer 2. The corona voltage of the corona treatment is 10000V. During the corona treatment, the surface of the backing layer 1 Advance speed control is 10m / min, obtains the backing film of corona treatment, in this step, the backing film of aforementioned corona treatment is the polyurethane film that thickness is 1.0mm, then the grammage is 40g / m 2 The pressure-sensitive adhesive used as the medical adhesive layer 2 is coated on one side surface of the aforementioned corona-treated polyurethane film and heated and cured at 50°C to obtain the glue-coated base layer. The pressure-sensitive adhesive described in this step is polyethylene base ether glue;

[0026] B) prepare the composite body, first to the side of the transition layer 3 facing away from the medical adhesive layer 2 that is facing upwards (with figure 1 The ...

Embodiment 2

[0030] A) Prepare the glue-coated base layer. First, corona treatment is carried out on the side surface of the backing layer 1 towards the medical adhesive layer 2. The corona voltage of the corona treatment is 14500V. During the corona treatment, the surface of the backing layer 1 Advance speed control is 30m / min, obtains the backing film of corona treatment, in this step, the backing film of aforementioned corona treatment is the polyethylene film that thickness is 0.01mm, then the grammage is 10g / m 2 The pressure-sensitive adhesive used as the medical adhesive layer 2 is coated on one side surface of the aforementioned corona-treated polyethylene film and heated and cured at 50°C to obtain the glue-coated base layer. The pressure-sensitive adhesive described in this step is polyurethane glue;

[0031] B) prepare the composite body, first to the side of the transition layer 3 facing away from the medical adhesive layer 2 that is facing upwards (with figure 1 The shown posi...

Embodiment 3

[0035] A) Prepare the glue-coated base layer. First, corona treatment is carried out on the side surface of the backing layer 1 towards the medical adhesive layer 2. The corona voltage of the corona treatment is 16000V. During the corona treatment, the surface of the backing layer 1 Advance speed control is 60m / min, obtains the backing film of corona treatment, in this step, the backing film of aforementioned corona treatment is the polyester film that thickness is 0.1mm, then the grammage is 100g / m 2 The pressure-sensitive adhesive used as the medical adhesive layer 2 is coated on one side surface of the aforementioned corona-treated polyester film and heated and cured at 100°C to obtain the glue-coated base layer. The pressure-sensitive adhesive described in this step is a natural rubber;

[0036] B) prepare the composite body, first to the side of the transition layer 3 facing away from the medical adhesive layer 2 that is facing upwards (with figure 1 The shown position s...

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Abstract

The invention discloses a silica gel scar plaster and a preparation method thereof, and belongs to the technical field of medical dressings and preparation thereof. The method comprises the steps of carrying out corona treatment on the surface of the side, facing the medical adhesive layer, of the backing layer to obtain a corona-treated backing film, coating the surface of the side, subjected tocorona treatment, of the backing film with the medical adhesive layer, and carrying out heating curing to obtain a gluing base layer; carrying out corona treatment on one side, back to the medical adhesive layer, of the transition layer to obtain a corona-treated transition layer, and then compounding the corona-treated transition layer with the medical adhesive layer of the adhesive-coated base layer to obtain a complex; spraying an adhesive on the surface of the complex to form an adhesive layer to obtain a functional layer to be coated; coating the silica gel on the surface of the functional layer to be coated, heating and curing, then compounding the release layer, slitting and packaging to obtain a finished product. The separation phenomenon cannot occur in the use process, resourcesare saved, and the use cost is reduced; the toughness is improved; the breaking strength is improved; and the process steps are short and simple.

Description

technical field [0001] The invention belongs to the technical field of medical dressing and its preparation, in particular relates to a silicone gel scar application, and also relates to a preparation method thereof. Background technique [0002] The aforementioned silicone gel scar application is a silicone gel anti-scar application. Since it is inevitable to encounter accidental wounds such as abrasions and scratches that damage skin tissue in daily life and work, it is necessary to use the application Treat the wound. In the later stage of wound healing, the disordered growth of cells will cause scars, which will affect the appearance. In the initial wound healing period, applying a silicone gel scar dressing can provide a pressure for the cells, and reduce water vapor evaporation, which can effectively inhibit scar hyperplasia. [0003] In the disclosed Chinese patent literature, it can be seen that all technical information related to silicone gel scar application and ...

Claims

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Application Information

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IPC IPC(8): A61F13/02A61L15/26
CPCA61F13/0236A61F13/0253A61F13/0266A61F13/0289A61F2013/00425A61F2013/0296A61L15/26C08L83/04
Inventor 古元安蔡忠新冯永良
Owner 苏州汇涵医用科技发展有限公司
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