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A kind of preparation method of biodegradable medical dressing

A medical and biological technology, applied in the field of medical supplies, can solve the problems of low strength value, difficult spinning into yarn, waste of cellulose resources, etc., and achieve the effect of high water absorption

Active Publication Date: 2020-11-06
HANGZHOU DIANZI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the catkin fleece is short and loose, its strength value is low, it is difficult to spin into yarn, and it is generally treated as waste directly, which causes a huge waste of cellulose resources.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • A kind of preparation method of biodegradable medical dressing
  • A kind of preparation method of biodegradable medical dressing
  • A kind of preparation method of biodegradable medical dressing

Examples

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preparation example Construction

[0025] The present invention also provides a preparation method of a biodegradable medical dressing, which is used to make the above-mentioned biodegradable medical dressing, comprising the following steps:

[0026] S1: cleaning catkins, removing impurities, and then vacuum drying at 40-60°C;

[0027] S2: uniformly mixing catkins and viscose fibers and processing them into catkins / viscose nonwoven fabrics;

[0028] S3: preparation mass fraction is the chitosan finishing liquid of 0.1-0.5g / ml;

[0029] S4: Utilize the chitosan finishing liquid that step S3 configures to catkin / viscose nonwoven fabric to carry out the post-finishing of two dipping two rollings;

[0030] S5: Bake the finished catkin / viscose nonwoven fabric at 80-100° C. for 5-15 minutes.

[0031] In the process of collecting catkins, there will inevitably be dust, leaves and other impurities. When making medical accessories, for hygiene and aesthetics, catkins need to be washed in water to remove impurities, an...

Embodiment 1

[0041] A biodegradable medical dressing, the catkin / viscose mass ratio is 5 / 95. Process catkins and viscose fibers into catkins / viscose nonwovens.

Embodiment 2

[0043] A biodegradable medical dressing, the catkin / viscose mass ratio is 5 / 95. The catkins and viscose fibers are processed into catkins / viscose nonwoven fabrics, and then the catkins / viscose nonwovens are subjected to two-dipping and two-rolling post-finishing through the chitosan finishing solution, and finally the finished viscose nonwovens Bake at 80-100°C for 5-15min.

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Abstract

The invention discloses a preparing method of biodegradable medical dressings. The biodegradable medical dressings are prepared from catkin, viscose and chitosan. The preparing method specifically comprises the following steps of S1, washing the catkin, removing impurities, and conducting vacuum drying at 40-60 DEG C; S2, processing the catkin and the viscose into catkin / viscose non-woven fabric;S3, preparing chitosan finishing liquid of which the mass fraction is 0.1-0.5 g / ml; S4, utilizing the chitosan finishing liquid which is prepared in S3 for conducting after-finishing of two-soaking and two-rolling on the catkin / viscose non-woven fabric; S5, drying the finished catkin / viscose non-woven fabric at 80-100 DEG C for 5-15 min. According to the preparing method of the biodegradable medical dressings, the catkin is recycled to be used for producing the non-woven fabric medical dressings, waste is turned into things of value, and the prepared medical dressings have biodegradability, high hydroscopicity, an antibacterial function and a hemostasis function.

Description

technical field [0001] The invention relates to the technical field of medical supplies, in particular to a preparation method of a biodegradable medical dressing. Background technique [0002] Spring is the season when catkins are flying all over the sky, and it is also the season of high incidence of various allergic symptoms. The allergies caused mainly occur in the upper respiratory tract. After catkins are inhaled into the nasal cavity, it will cause strong irritation, runny nose, cough and asthma reactions, such as skin itching , redness of the conjunctiva, etc., which can affect sleep in severe cases. Catkins flying all over the sky will also cause a certain degree of damage to the urban ecological environment. Flying catkins will also cause harm to public safety, traffic safety and public facilities. The line of sight of pedestrians and vehicles will affect traffic safety. However, according to medical history records, catkin is a traditional Chinese medicine with c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/4382D04H1/425D04H1/4258D06M15/03D06M101/06
CPCD04H1/425D04H1/4258D04H1/4382D06M15/03D06M16/00D06M2101/06
Inventor 郭筱洁奚柏君
Owner HANGZHOU DIANZI UNIV
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