Preparation method and winding storage method of medical adhesive tape

A tape and sticker technology, applied in bandages, bandages, adhesives, etc., can solve the problems of short shelf life and loss of activity, and achieve the effect of extending shelf life

Active Publication Date: 2022-05-13
HUIZHOU HAOMING SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a preparation method and a winding storage method of a medical adhesive tape with better airtightness, light-shielding function and capable of storing semi-solid medicine in a fixed shape, so as to solve the problem of medicine being affected by light. Catalysis or oxygen catalysis will quickly lose activity and lead to short shelf life issues, to relieve the limitations of medical tapes in semi-solid drug storage

Method used

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  • Preparation method and winding storage method of medical adhesive tape
  • Preparation method and winding storage method of medical adhesive tape
  • Preparation method and winding storage method of medical adhesive tape

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0032] For an implementation, see figure 1 , a preparation method of medical tape, comprising the following steps:

[0033] S110, magnetron sputtering a light-shielding material on one side of the thermoplastic substrate layer to form a first light-shielding layer on one side of the thermoplastic substrate layer, and coating the completely melted pressure-sensitive adhesive on the one side of the thermoplastic substrate layer. on opposite sides of the thermoplastic substrate layer to form a first pressure-sensitive adhesive layer on the opposite side of the thermoplastic substrate layer, the first pressure-sensitive adhesive layer comprising connected main regions and multiple targeting areas.

[0034] S120. Press and attach a plurality of positioning rings to the plurality of positioning areas respectively, and the positioning rings and the positioning areas jointly enclose an accommodation chamber for accommodating the medicine.

[0035] S130, coating the completely melted...

Embodiment approach

[0057] In one embodiment, the polyurethane block copolymer composition is polyurethane thermoplastic elastomer.

[0058] In one embodiment, the styrene-based thermoplastic elastomer is at least one of SIS, SBS, SEBS and SEPS. For example, the styrenic thermoplastic elastomer is a common mixture of SIS, SBS, SEBS and SEPS. For example, the styrene-based thermoplastic elastomer is SIS, SBS, SEBS or SEPS.

[0059] In one embodiment, the tackifying resin is at least one of polyisobutylene, rosin pentaerythritol resin, petroleum resin, terpene resin and rosin resin. For example, the tackifying resin is a common mixture of polyisobutylene, rosin pentaerythritol resin, petroleum resin, terpene resin and rosin resin. For example, the tackifying resin is polyisobutylene, rosin pentaerythritol resin, petroleum resin, terpene resin or rosin resin.

[0060] In one embodiment, the plasticizer is at least one of naphthenic oil, liquid paraffin and white oil. For example, the plasticizer...

Embodiment 1A

[0087] Under vacuum conditions, 100 kg of polyether diol DL-2000 and 40 kg of 4,4-dicyclohexylmethane diisocyanate were added to 100 kg of ethyl acetate, and stirred evenly to obtain a first blend.

[0088] Control the temperature at 60° C., add 1 kg of dibutyltin dilaurate to the first blend, and stir evenly to obtain a second blend.

[0089] The temperature was controlled at 70° C., 20 kg of trimethylolmethane and 1 kg of dibutyltin dilaurate were sequentially added to the second blend, and stirred evenly to obtain a third blend.

[0090] The temperature was controlled at 140° C., 5 kg of amino resin was added into the third blend solution, stirred evenly, and a crosslinking reaction was carried out for 60 s to obtain the polyurethane block copolymer composition.

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Abstract

The invention relates to the field of preparation methods of medical materials, and discloses a preparation method and winding storage method of medical adhesive tape, comprising the following steps: magnetron sputtering a light-shielding material on one side of a thermoplastic substrate layer to form a first light-shielding layer, a fully melted pressure sensitive adhesive is applied to the opposite side of the thermoplastic substrate layer to form a first pressure sensitive adhesive layer, the first pressure sensitive adhesive layer includes a connected main area and a plurality of positioning areas Press and attach a plurality of positioning rings to multiple positioning areas respectively, and the positioning rings and the positioning areas together form an accommodation cavity for accommodating medicines; coating the completely melted pressure-sensitive adhesive on the main area to form the second The second pressure-sensitive adhesive layer is irradiated with ultraviolet light. The first light-shielding layer, the thermoplastic substrate layer, the first pressure-sensitive adhesive layer and the second pressure-sensitive adhesive layer together form an adhesive sticker. The prepared medical adhesive tape has good airtightness, light-shielding function and can store semi-solid medicine in a fixed shape.

Description

technical field [0001] The invention relates to the field of preparation methods of medical materials, in particular to a preparation method and winding storage method of medical adhesive tape. Background technique [0002] In medical treatment, medical tape is mainly used for the fixation of drugs, intravenous infusion needles and catheters. Existing medical tapes are mainly composed of non-woven fabrics and viscose layers. As far as medical tapes are concerned in fixing medicines, there are mainly two types. The woven fabric is soaked in a liquid medicine, dried and then coated with an adhesive to form an adhesive layer on one side of the nonwoven fabric; for example, a medical dressing. One is the sticking and fixing type, that is, the solid medicine is directly pasted on the medical tape. [0003] However, medical tape has great limitations in the storage of medicines. For example, it is difficult to store semi-solid drugs such as gels and ointments. Medical tapes inc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F13/00A61F13/02C09J7/20C09J7/38C09J7/40C09J145/00C09J193/04C09J153/02C09J175/08C09J123/22
CPCA61F13/00063A61F13/00076A61F13/0289C09J7/38C09J7/40C09J7/20C09J145/00C09J193/04A61F2013/00897A61F2013/0296C08L2205/035C08L2207/04C09J2301/208C09J2301/122C09J2301/302C08L53/025C08L53/02C08L75/08C08L23/22
Inventor 蒋友兵何振梅
Owner HUIZHOU HAOMING SCI & TECH
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