CN87100688A - The manufacture method of viscose plaster bandage - Google Patents
The manufacture method of viscose plaster bandage Download PDFInfo
- Publication number
- CN87100688A CN87100688A CN 87100688 CN87100688A CN87100688A CN 87100688 A CN87100688 A CN 87100688A CN 87100688 CN87100688 CN 87100688 CN 87100688 A CN87100688 A CN 87100688A CN 87100688 A CN87100688 A CN 87100688A
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- CN
- China
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- manufacture method
- plaster
- gauze
- calcium plaster
- viscose
- Prior art date
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- Materials For Medical Uses (AREA)
Abstract
The manufacture method of viscose plaster bandage of the present invention may further comprise the steps: at first the dihydrate gypsum powder is joined in the synthetic sol be made up of polyvinyl alcohol, white glues and water and the hardening time regulator, make calcium plaster through fully stirring, then calcium plaster is coated on the gauze, again this gauze is dewatered through heat treatment, make the calcium plaster that applies on the gauze become semi-hydrated gypsum.The present invention is not owing to adopt such as organic solvents such as methanol, and adopts water, so avirulence is polluted in manufacturing process, and cleaning, and also cost of manufacture is lower.
Description
The present invention relates to binder, relate in particular to a kind of manufacture method of viscose plaster bandage.
Viscose plaster bandage is a kind of medical dressing, and at the beginning of the fifties, this viscose plaster bandage comes out as second filial generation plaster bandage, at that time mainly as military supplies.Because this viscose plaster bandage is compared with the first generation " powdery " plaster bandage, has the intensity height, consumption is few, and easy to use, simple, cleaning, so be subjected to doctor and patient's welcome deeply.Abroad just be widely adopted the sixties.Yet, the colloidal sol that this external viscose plaster bandage that widely uses is all formed with organic solvents such as methanol with Gypsum Fibrosum powder (calcined) (being commonly called as gesso) is mixed with viscose glue Gypsum Fibrosum Preparatum slurry, and make it to stick on the support gauze, reheat is made the method for solvent evaporation.The weak point of this method is will make in the manufacturing process the deleterious solvent evaporation of human body, and cost is also higher.
Purpose of the present invention aims to provide a kind of cleaning, pollution-free, the manufacture method of viscose plaster bandage cheaply.
The manufacture method of viscose plaster bandage of the present invention may further comprise the steps: at first with dihydrate gypsum powder (Ca SO
42 H
2O is commonly called as gypsum powder) join in the synthetic sol formed by polyvinyl alcohol, white glues and water and the hardening time regulator, through fully stirring the preparation calcium plaster; Then calcium plaster is coated in and supports on the gauze; Again this gauze is dewatered through heat treatment, make the calcium plaster that applies on the gauze be transformed into semi-hydrated gypsum (Ca SO
41/2 H
2O is commonly called as Gypsum Fibrosum preparata).
In the manufacture method of viscose plaster bandage of the present invention, owing to do not adopt such as organic solvents such as methanol, but adopt water, and so avirulence is polluted in manufacturing process, cleaning, and also cost of manufacture is lower.
Below, will do narration in more detail to the present invention in conjunction with the embodiment of indefiniteness.
Manufacture method of the present invention may further comprise the steps:
1. the preparation of calcium plaster
(1) in 12 kilogram of 10% polyvinyl alcohol sol, add about 12 kilograms of boiling water, stand-by through fully stirring;
(2) at 0.15～1 kilogram of D587(white glues) and 0.5 kilogram of B8212 solution (KCl solution) in, add about 1 kilogram water, stand-by through fully stirring; Then,
(3) above-mentioned (1) and (2) gained material are combined, add an amount of water again, making it to reach gross weight is 30 kilograms, through fully stirring, promptly becomes synthetic sol again;
(4) 50 kilograms of dihydrate gypsum powder are joined in the as above prepared synthetic sol equably, after fully stirring, with Baume viscometer determining denseness, the control denseness is between 72 °-76 °.Then adjust denseness as too thick with cold water; Too rarely then adjust, directly end denseness and reach within the above-mentioned span of control with the dihydrate gypsum powder.
2. starching:
The calcium plaster for preparing is coated on medical half defat, the bleached gauze equably in the method with prior art on the starching machine.
3. thermal finalization:
The gauze of first-class calcium plaster is introduced in the drying room.Temperature in the drying room is controlled in 130～160 ℃ of scopes, through heat treatment dehydration in 20～30 minutes, makes the dihydrate gypsum on the gauze be transformed into semi-hydrated gypsum (being commonly called as Gypsum Fibrosum preparata).Take out the back and cut into various specification at once as required.Then pack, promptly become the viscose plaster bandage that has use value.
With the viscose plaster bandage of making of the present invention, carry out full performance test by Shanghai Medical Appliances Inst, its test result is shown in Table 1.
Table 1 viscose plaster bandage test result
The specification requirement test result
1. Gypsum Fibrosum should stick to equably on the gauze and estimate evenly
2. spool should cut smoothly, and defectives such as no Zhe crape range estimations is smooth, no Zhe crape
3. binder does not have to peel off and takes off cream phenomenon range estimation and do not have and peel off and take off cream
The every weight per square meter of binder be no less than 340 the gram 369.56 the gram/square metre
5. the content of semi-hydrated gypsum should be no less than 85% 86.59%
Every square metre of absorbent gauze weight be no less than 36 grams, 37.83 grams/square metre
7. the moisture content weightlessness of semi-hydrated gypsum should be between 4.5～8% 6.93%
8. the binder soaking time should be above 15 seconds 5 seconds
9. binder should have good plasticity, do not have block and plasticity good, do not have block with
The coarse grain coarse grain
10. be not less than the hardening time of binder 4 minutes, do not surpass 5.5～7 minutes
Spend 8 minutes
11. binder should have in the moistureproof outer package reliably of good seal the Waxpaper packing is arranged, and moulds outward
The material bag film, the bag mouth sealing is incomplete
Claims (5)
1, a kind of manufacture method of viscose plaster bandage, it comprises calcium plaster preparation, calcium plaster is coated in supports on the gauze and step such as plaster bandage thermal finalization, it is characterized in that said calcium plaster is with dihydrate gypsum powder (CaSO
42H
2O, gypsum powder) joins in the sol formed by polyvinyl alcohol, white glues and water and the hardening time regulator, prepare through fully stirring; Said thermal finalization is the heat treatment dehydration, makes dihydrate gypsum be transformed into semi-hydrated gypsum (CaSO
41/2H
2O, Gypsum Fibrosum preparata).
2, manufacture method according to claim 1, the denseness that it is characterized in that the calcium plaster of prepared one-tenth is controlled between 72 °～76 ° (uses the Baume viscometer determining).
3, manufacture method according to claim 1 and 2 is characterized in that said hardening time, regulator was a Klorvess Liquid.
4, manufacture method according to claim 1 is characterized in that the polyvinyl alcohol sol: white glues=1.2: 0.15～1.0.
5, manufacture method according to claim 1 is characterized in that said heat treatment dehydration temperaturre is 130～160 ℃, and the time is 20～30 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87100688 CN87100688A (en) | 1987-02-14 | 1987-02-14 | The manufacture method of viscose plaster bandage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87100688 CN87100688A (en) | 1987-02-14 | 1987-02-14 | The manufacture method of viscose plaster bandage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87100688A true CN87100688A (en) | 1988-08-24 |
Family
ID=4812979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87100688 Pending CN87100688A (en) | 1987-02-14 | 1987-02-14 | The manufacture method of viscose plaster bandage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87100688A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103735426A (en) * | 2014-01-09 | 2014-04-23 | 浙江奥林医疗用品有限公司 | Method for preparing gypsum facial mask |
| CN105688251A (en) * | 2016-02-23 | 2016-06-22 | 王云山 | Viscous type plaster bandage and method for preparing same |
-
1987
- 1987-02-14 CN CN 87100688 patent/CN87100688A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103735426A (en) * | 2014-01-09 | 2014-04-23 | 浙江奥林医疗用品有限公司 | Method for preparing gypsum facial mask |
| CN103735426B (en) * | 2014-01-09 | 2015-07-29 | 浙江奥林医疗用品有限公司 | A kind of preparation method of gypsum facial mask |
| CN105688251A (en) * | 2016-02-23 | 2016-06-22 | 王云山 | Viscous type plaster bandage and method for preparing same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |