CN1050303C - Medical adhesive plaster and prodn. tech. thereof - Google Patents
Medical adhesive plaster and prodn. tech. thereof Download PDFInfo
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- CN1050303C CN1050303C CN 93111515 CN93111515A CN1050303C CN 1050303 C CN1050303 C CN 1050303C CN 93111515 CN93111515 CN 93111515 CN 93111515 A CN93111515 A CN 93111515A CN 1050303 C CN1050303 C CN 1050303C
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- working solution
- modification
- rubber
- base cloth
- proof fabric
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- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The present invention belongs to the field of medical materials. The existing medical rubberized fabric is generally made in the way that cotton cloth which is bleached and dyed is taken as base cloth; the existing medical rubberized fabric has the defect that the existing medical rubberized fabric is not easy to tear into rubberized fabric of the needed size. The present invention aims at providing a medical adhesive tape which is easy to tear by hands and a manufacturing method thereof. The medical adhesive tape of the present invention takes easy modified cotton cloth which is easy to tear as base cloth; a macromolecular modifying substance in the shape of a net is arranged between the base cloth and fabre. In the manufacturing technology of the medical adhesive tape of the present invention, bleached cloth which is immersed into and passes through modifying working liquid is prebaked, spread and baked to obtain modified base cloth which is easy to tear. The rest of the manufacturing technology is basically identical with the prior art.
Description
The present invention relates to a kind of medical material.
At present, common used rubber-type medical proof fabric, general is base cloth with the cotton through bleachinging and dyeing processings of etc.ing, rubber pressure-sensitive adhesive is starched be applied on the base cloth drying and make except that desolvating.Shortcoming is that when people used, easily openable did not become the adhesive plaster of required size.
The objective of the invention is, the medical proof fabric that provides a kind of hands easily to tear, and be provided for making the technology that this hands easily tears medical proof fabric.
Realizing that the technical scheme that provides a kind of hands easily to tear medical proof fabric in the object of the invention is, is base cloth with the modification cotton, is stained with rubber-type medical pressure-sensing glue-line on the base cloth, contains cancellated macromolecule modified material between the fiber of this modification cotton; This macromolecule modified material can be obtained by the modification working solution that is main component with acrylate copolymer emulsion and the agent of corresponding amine crosslinked at low temperature.
Above-mentioned modification working solution contains following component (weight):
Acrylate copolymer emulsion 10～30%
Amine crosslinked at low temperature agent 2～5%
All the other are water.
Be further to increase the easy-to-rupture of this medical proof fabric, above-mentioned modification working solution can also contain and increases well-pressed degree slurry, and content is (weight):
Increase well-pressed degree slurry 0.2～1.5%
It is above-mentioned that to increase well-pressed degree slurry can be polyvinyl alcohol or sodium carboxymethyl cellulose.
Realizing being provided in the object of the invention making the technical scheme that hands easily tears medical proof fabric technology is, mainly contains three processing steps, i.e. the first step, and the cloth material is handled: bleached cloth after processing is bleached or bleachinged and dyeing to nankin.The modification working solution is poured in the stock tank of starching machine, it is 3500～4500 kilograms that point pressure is rolled in control, make above-mentioned bleaching cloth with 10～18 meters speed of per minute by the cylinder mangle, pick-up rate is 60～80%, then through 90～110 ° of preliminary dryings of cylinder half a minute approximately, through the expander expanding to former fabric width, go into drying tunnel, pass through drying tunnel down at 170～195 ℃, be about 1 minute drying time, promptly obtain modification cotton as base cloth; Second step, the preparation rubber cement, lamellar raw rubber piece is rolled into sieve through rubber mixing machine to be foretold thread or laminar, be dipped in that to make it swelling in the gasoline abundant, obtain rubber swelling thing, add oils and fats as softening agent, add tackifying resin, stir, can also add the filler or the plasticizer that improve serviceability in the stirring, thereby obtain the rubber pressure-sensitive adhesive slurry; The 3rd step, rubber cement applies, rubber cement is placed in the rubber cement groove before the coating machine painting drum, the index drum gap is about 0.1～0.2mm, make base cloth slowly by cylinder, drying, rolling, cut-out make finished product, in the drying, by closed conduit the gasoline that evaporates is passed through condenser, recovery can reuse.
A kind of preparation method of modification working solution is in the above-mentioned technology, at room temperature, acrylate copolymer emulsion, the agent of amine crosslinked at low temperature and water is added in the container by proportioning, stirs and promptly makes the modification working solution.
The another kind of preparation method of modification working solution is in the above-mentioned technology, in polyvinyl alcohol, add about 8～12 times water, made it swelling 12～24 hours, be heated to molten entirely then while stirring, filter by 60～80 mesh filter screens, gained filtrate is cooled to room temperature, adds acrylate copolymer emulsion again, agent of amine crosslinked at low temperature and water stir and promptly make the modification working solution.
The present invention has positive effect.(1) medical proof fabric of the present invention contains cancellated macromolecule modified material owing between the measuring fiber, thereby the toughness between the fiber is descended, thereby reduces the shearing tearing resistance greatly, and warp-wise is about 26 newton, and broadwise is about 22 newton.Can adhesive plaster be torn into required shape along warp-wise and broadwise during use, quality index meets the GB2771 standard simultaneously.(2) manufacturing process of medical proof fabric of the present invention, Yin Jibu warp-wise tension intensity changes little, still can satisfy starching, the requirement of coating processes tension force, compares with former technology, and plant equipment is constant substantially, and it is few to acquire equipment, gets final product suitability for industrialized production, and free from environmental pollution.
Below in conjunction with embodiment the present invention is further described.
Embodiment 1, medical proof fabric.
With the modification cotton is base cloth, 82 centimetres of fabric widths, and long 5 meters, specification is 19.5 * 16/283 * 271.5, wherein the raw yarn number is: warp thread 19.5, weft yarn 16, density is 283 on per 10 centimetres of warp thread, 271.5 of weft yarns; Be stained with the rubber-type medical pressure-sensitive adhesive on the base cloth, unit are content (dry weight): every square metre 115 gram; Contain cancellated macromolecule modified material between the fiber of above-mentioned modification cotton.
The prescription of the raw material of above-mentioned macromolecule modified material---modification working solution is (weight):
Acrylate copolymer emulsion: WF-840 liquid 21%---acrylic acid, acetic acid binary copolymerization emulsion, Changzhou Chemical Engineering Inst. wears small stream pilot plant and produces;
Amine crosslinked at low temperature agent: EH-1 cross-linking agent 3.5%---made by ethylenediamine and epichlorohydrin reaction, Changzhou Chemical Engineering Inst. produces;
All the other are water.
Cotton through bleachinging and dyeing is immersed the modification working solution, go into the drying tunnel heat drying, make modification working solution generation cross-linking reaction, generate cancellated high molecular polymer between the fiber of cotton, cotton becomes modification and easily tears cotton.
The prescription of the raw material of above-mentioned rubber-type medical pressure-sensitive adhesive---rubber cement is (weight):
15 parts of rubber
45 parts in gasoline
Oils and fats first: 2.5 parts in vaseline
Oils and fats second: 2 parts of lanolines
Tackifying resin: 18 parts of Colophonium
Filler: 20 parts of zinc oxide
Rubber cement is applied on the modification cotton through coating machine,, promptly gets the rubber-type medical pressure-sensitive adhesive and stick on the modification cotton again through the drying tunnel drying.
The warp-wise power of tearing is 26 newton, and broadwise is 22 newton, and it is 33 newton that non-modified processing adhesive plaster tears the power warp-wise, and broadwise is 29 newton.
Embodiment 2, medical proof fabric.
All the other are with embodiment 1, and the prescription of the raw material of used modified material---modification working solution is (weight):
Acrylate copolymer emulsion: WF-823 liquid 16%---acrylic acid, acetic acid binary copolymerization emulsion, Changzhou Chemical Engineering Inst. wears small stream pilot plant and produces;
Amine crosslinked at low temperature agent: EH cross-linking agent 2.5%---made by ethylenediamine and epichlorohydrin reaction, Changzhou Chemical Engineering Inst. produces,
Increase well-pressed degree slurry: polyvinyl alcohol 1.0%
All the other are water.
The prescription of the raw material of used rubber-type medical pressure-sensitive adhesive---rubber cement is (weight):
15 parts of rubber
45 parts in gasoline
Oils and fats first: 2.5 parts in vaseline
Oils and fats second: 2 parts of lanolines
Tackifying resin: 18 parts of Colophonium
Filler: 20 parts of zinc oxide
Rubber antioxidant: 0.3 part of hydroquinone.
Embodiment 3, medical proof fabric.
All the other are with embodiment 1, and the specification of modification cotton is 14.5 * 14.5/248 * 315, the raw material of used modified material---and the prescription of modification working solution is (weight):
Acrylate copolymer emulsion: WF840 liquid 29%
Amine crosslinked at low temperature agent: EH-1 cross-linking agent 3.8%
Increase well-pressed degree slurry: sodium carboxymethyl cellulose 1.2%
All the other are water.
The prescription of the raw material of used rubber pressure-sensitive adhesive---rubber cement is (weight):
20 parts of rubber
60 parts in gasoline
The tackifying resin first: softening point is 115 ℃ 10 parts of terpene resins
Tackifying resin second: softening point is 70 ℃ 6 parts of terpene resins
Oils and fats first: 0.6 part of lanoline
Oils and fats second: 0.8 part of white oil
Plasticizer: 1.6 parts of polyisobutylene
Rubber antioxidant: 0.4 part of hydroquinone.
Embodiment 4, the medical proof fabric manufacturing process.
1. prepare the modification working solution: at room temperature modification working solution each component given among the embodiment 1 is added in the mixer for 100 kilograms by total amount, stir and promptly make the modification working solution.
2. the cloth material is handled: the specification of the bleaching of learning from else's experience is that 19.5 * 16/283 * 271.5 fabric width bleaches cloth for 82 centimetres, get 100 kilograms of the modification working solutions that prepare, pouring model into is in the starching machine stock tank of MH563-140L (production of Chuansha, Shanghai dyeing machine factory), selvage guide---receive the cloth part with the rope headstock that will bleach cloth after the starching machine cylinder gap is pulled to, it is 3800 kilograms that point pressure is rolled in adjusting, making bleaches cloth is dipped in the modification working solution through stock tank earlier with 15 meters speed of per minute, then by the cylinder mangle, pick-up rate is about 70%, by model is the cylinder of MH603-140L (Shanghai Printing ﹠ Dyeing Machinery Factory's production), the control temperature is that 100 ℃ of preliminary drying immersion bleach cloth about 30 seconds, through the expander expanding to former fabric width, go into drying tunnel, be about 1 minute drying time, the control drying tunnel temperature is 185 ℃, goes out drying tunnel and promptly get modification and easily tear cotton, puts in order by 1 meter length page or leaf cloth with a page or leaf cloth machine.
3. rubber cement preparation: use the steel wire scrubbing brush with raw rubber (abbreviation rubber) piece surface Pulvis Talci, earth etc. scrub clean, with bale splitter the rubber of cleaning is cut into the lamellar blob of viscose that thickness is 10cm then, the lamellar blob of viscose that cuts is placed drying room, the control temperature is about 60 ℃ of dryings, about 24 hours of time, the raw stock that obtains drying, it is 36 centimetres that the raw stock of drying is placed diameter of cylinder, drum length is on 91 centimetres the rubber mixing machine, regulating roller pitch is 1 centimetre, make raw stock wait drum extrusion, obtain sieve and foretell thread or laminar refining glue, it is 0.5 cubic metre agitator that refining glue is put into the specification that has added 180 kilograms of gasoline in advance for 60 kilograms, add the good rubber of refining while stirring, stir, static 24 hours, make the abundant swelling of refining glue, obtain rubber swelling thing, then with 10 kilograms in vaseline, lanoline adds in the agitator for 8 kilograms, carry out stir about half an hour, add 80 kilograms of zinc oxide more respectively, 71 kilograms of Colophonium stir, the gained mixed liquor filters by the double-deck copper wire cloth screen of 80 orders, and gained filtrate is rubber cement.
4. rubber cement applies: in the about 50 kilograms of rubber cement grooves that are placed on before the coating machine painting drum of above-mentioned rubber cement, the amount that often keeps rubber cement, the index drum gap is about 0.15mm, start coating machine, make the modification cotton slowly pass through cylinder with the speed of 3.5 meters of per minutes, coating weight is every square metre and nearly weighs 215 grams, go into drying tunnel through 80～90 ℃ of dryings 6 minutes, promptly get medical proof fabric, the gel content dry weight is about every square metre 115 gram, go out drying tunnel and with the medical proof fabric rolling be on 2.5 centimetres the plastic wick in internal diameter through winder, with 5 meters of length is that a volume cuts off adhesive plaster, then adhesive plaster volume is positioned over that the specification by 5 centimetres cuts into segment on the lathe, packing can be dispatched from the factory and directly be used.
Embodiment 5, the medical proof fabric manufacturing process.
1. prepare the modification working solution: in mixer, put into 1 kilogram of polyvinyl alcohol, the water that adds 10 kilograms made it swelling 18 hours, and stir on the limit then, the limit feeds steam and heats, the material temperature is about 80 ℃, until molten entirely, feed liquid is filtered into mixer by 60 mesh filter screens, gained filtrate is cooled to room temperature, with all the other components of modification working solution of implementing to provide in 2, promptly the total amount by remainder is 89 kilograms of adding mixers, stirs and promptly makes the modification working solution.
2. the cloth material is handled: all the other are with implementing 4, and used modification working solution is a present embodiment modification working solution.
3. rubber cement preparation: all the other are with embodiment 4, after obtaining rubber swelling thing, with 1.2 kilograms of hydroquinone, 10 kilograms in vaseline stirs half an hour in 8 kilograms of addings of lanoline agitator, adds 80 kilograms of zinc oxide more respectively, 72 kilograms of Colophonium, stir, the gained mixed liquor filters by the double-deck copper wire cloth screen of 80 orders, and gained filtrate is rubber cement.
4. rubber cement applies: all the other are with embodiment 4, and used rubber cement is the rubber cement of present embodiment.
Embodiment 6, the medical proof fabric manufacturing process.
1. prepare the modification working solution: in mixer, put into 1.2 kilograms of sodium carboxymethyl cellulose, add 12 kg of water, stir on the limit, the limit feeds Steam Heating, and the material temperature is 80 ℃, until molten entirely, feed liquid is filtered into mixer by 60 mesh filter screens, gained filtrate is cooled to room temperature, again all the other components of modification working solution that provide among the embodiment 3 is added mixer for 86.8 kilograms with total amount in proportion, stirs and all promptly makes the modification working solution.
2. the cloth material is handled: all the other are with embodiment 4, and the specification that bleaches cloth of getting is 19.5 * 16/283 * 271.5,82 centimetres of fabric widths, the modification working solution that used modification working solution is a present embodiment.
3. rubber cement preparation: all the other are with embodiment 4, after obtaining rubber swelling thing, add 1.2 kilograms of hydroquinone, again with 1.8 kilograms of lanolines, 2.4 kilograms of white oils, add in the agitator stir about half an hour, add softening point again and be 18 kilograms of the terpene resins that 115 ℃ 30 kilograms of terpene resins and softening point be 70 ℃, stir, add 4.8 kilograms of polyisobutylene again and stir, the gained mixed liquor filters by the double-deck copper wire cloth screen of 80 orders, and gained filtrate is rubber cement.
4. rubber cement applies: all the other are with embodiment 4, and used rubber cement is the rubber cement of present embodiment, and used base cloth is the base cloth of present embodiment, and coating weight is every square metre and nearly weighs 185 grams that the gel content dry weight is about every square metre 100 gram.
Claims (8)
1, a kind of medical proof fabric has base cloth, is stained with rubber-type medical pressure-sensing glue-line on the base cloth, it is characterized in that, used base cloth is the modification cotton, contains cancellated macromolecule modified material between the fiber of this modification cotton.
2, medical proof fabric according to claim 1 is characterized in that, described macromolecule modified material is obtained by the modification working solution that is main component with acrylate copolymer emulsion and the agent of corresponding amine crosslinked at low temperature.
3, medical proof fabric according to claim 2 is characterized in that, described modification working solution contains following component (weight):
Acrylate copolymer emulsion 10～30%
Amine crosslinked at low temperature agent 2～5%
All the other are water.
4, medical proof fabric according to claim 3 is characterized in that, described modification working solution can also contain and increases well-pressed degree slurry, and content is (weight):
Increase well-pressed degree slurry 0.2～1.5%
5, medical proof fabric according to claim 4 is characterized in that, describedly increases well-pressed degree slurry, can be polyvinyl alcohol or sodium carboxymethyl cellulose.
6, a kind of manufacture method that is used for the described medical proof fabric of claim 1 mainly contains three processing steps, the first step, and the cloth material is handled: processing such as cotton is bleached or bleachinged and dyeing obtain base cloth; Second step, preparation rubber cement: lamellar raw rubber piece is rolled into sieve through rubber mixing machine foretells thread or laminar, be dipped in that to make it swelling in the gasoline abundant, obtain rubber swelling thing, adding adds tackifying resin as the oils and fats of softening agent, stirs, can also add the filler or the plasticizer that improve serviceability in the stirring, thereby obtain the rubber pressure-sensitive adhesive slurry; The 3rd step, rubber cement applies: rubber cement is placed in the rubber cement groove before the coating machine painting drum, the index drum gap, make base cloth slowly pass through cylinder, drying, rolling, cut-out makes finished product, it is characterized in that said first step cloth material is handled, comprise that also the modification of cotton is handled, promptly, the modification working solution is poured in the stock tank of starching machine, it is 3500～4500 kilograms that point pressure is rolled in control, makes the cotton through bleaching or bleachinging and dyeing immerse the modification working solution through stock tank earlier with 10～18 meters speed of per minute, then by the cylinder mangle, pick-up rate is 60～80%, then through 90～110 ℃ of preliminary dryings of cylinder half a minute approximately, through the expander expanding to former fabric width, go into drying tunnel, pass through drying tunnel down at 170～195 ℃, be about 1 minute drying time, promptly obtain modification cotton as base cloth.
7, the manufacture method of medical proof fabric according to claim 6 is characterized in that, the preparation method of described modification working solution is, at room temperature, with acrylate copolymer emulsion, agent of amine crosslinked at low temperature and water add in the container by proportioning, stir and promptly make the modification working solution.
8, the manufacture method of medical proof fabric according to claim 6, it is characterized in that, the another kind of preparation method of described modification working solution is that about 8～12 times water of adding made it swelling 12～24 hours in polyvinyl alcohol, be heated to molten entirely then while stirring, filter by the 60-80 mesh filter screen, gained filtrate is cooled to room temperature, adds acrylate copolymer emulsion again, agent of amine crosslinked at low temperature and water stir and promptly make the modification working solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93111515 CN1050303C (en) | 1993-05-23 | 1993-05-23 | Medical adhesive plaster and prodn. tech. thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93111515 CN1050303C (en) | 1993-05-23 | 1993-05-23 | Medical adhesive plaster and prodn. tech. thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1095582A CN1095582A (en) | 1994-11-30 |
| CN1050303C true CN1050303C (en) | 2000-03-15 |
Family
ID=4989291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93111515 Expired - Fee Related CN1050303C (en) | 1993-05-23 | 1993-05-23 | Medical adhesive plaster and prodn. tech. thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1050303C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104758121B (en) * | 2015-04-01 | 2019-04-02 | 杭州高斯博医疗用品有限公司 | A kind of four sides elasticity bandage |
| CN108030592B (en) * | 2017-12-15 | 2021-03-05 | 温州市人民医院 | Easily tear medical adhesive tape |
| CN109549778B (en) * | 2019-01-16 | 2020-09-25 | 北京化工大学 | Natural polysaccharide-based medical antibacterial hydrocolloid dressing and preparation method thereof |
| CN111876102A (en) * | 2020-07-21 | 2020-11-03 | 中国乐凯集团有限公司 | Medical pressure-sensitive adhesive composition, preparation method thereof and adhesive material |
-
1993
- 1993-05-23 CN CN 93111515 patent/CN1050303C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1095582A (en) | 1994-11-30 |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Applicant after: Grand road (Changzhou) Co., Ltd. Applicant before: Changzhou Sanitary Material Factory |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: CHANGZHOU SANITARY MATERIAL FACTORY, CHANGZHOU SANITARY MATERIAL FACTORY TO: BAYERSIC(CHANG ZHOU) CO., LTD. |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHANGZHOU SANJIU BEIERSDORF PHARMACEUTICAL CO., LT Free format text: FORMER NAME OR ADDRESS: BEIERSDORF ( CHANGZHOU ) CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Patentee after: Changzhou 39 Bayer Pharmaceutical Co., Ltd. Patentee before: Baiersdaofu (Changzhou) Co., ltd. |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |