How to make black plaster base

The preparation method of black plaster matrix is ??as follows:

1. Extraction of medicinal materials (explosives).

The oil temperature is 200 to 220°C. For the degree of frying, fry the vegetables until they turn brown. Next, soak the light-textured herbs that cannot withstand deep-frying (flowers, grass, leaves, and skins), and add other medicinal materials after frying until they turn brown. Grind the powder before spreading and add volatile ingredients, mineral medicines, and precious medicines (the temperature does not exceed 70°C).

2. Oil refining.

The oil temperature is 300℃. The level of oil refining is dripping into beads. Plasters that are too "old" are brittle, have weak adhesion, and are easy to fall off when applied. The "too tender" plaster is soft, easy to move after being applied, and has strong adhesion, making it difficult to peel off.

3. Add the elixir to form a paste (the oil elixir produces lead salt of higher fatty acid).

The oil temperature of Xiadan is 270℃. The oil saponification temperature is 300℃. Oil: Dan=500: 150 to 200 (less in winter and more in summer).

4. Remove "fire poison".

Immersion in water or dynamic running water. Fire poison: aldehydes, ketones, fatty acids, etc., are irritating. Fire poison irritation reaction: local irritation occurs, ranging from erythema and itching in mild cases to blistering and ulcers in severe cases.

5. Spread the paint.

Put the plaster mass on a slow fire or hot-melt it on a water bath, keep it warm at 60°C to 70°C, add fine ingredients and stir evenly, dip a bamboo skewer into the prescribed amount, and spread it on the backing material (leather, cloth, Multi-layer bast paper), fold and package, store in a cool place.

Introduction to the plaster matrix:

The plaster is divided into two parts, one part is the ointment and the other part is the medicine. The ointment and the medicine are combined together and applied on the plaster cloth to make a plaster. It is commonly referred to as the plaster matrix. It is the carrier of traditional Chinese medicine in the plaster. It also has viscosity properties that enable the plaster to stick to the surface of the patient's skin.

The composition of plaster bases is diverse, and different plasters have different plaster base ingredients. Specifically, plaster bases are mainly divided into three categories. One is the traditional plaster base, which has a long production history and is mostly operated by hand. , the production preparation is all based on experience and family tradition, the second is solvent-based plaster base, the third is boil-free plaster base, the fourth is cataplasm plaster base, and the fifth is hot-melt pressure-sensitive adhesive new plaster base,

Each plaster base has its own advantages and disadvantages. However, with the development of society and science and technology, and the emergence of new technologies, new plaster bases always replace the old plaster bases. Due to differences in time and environment, the old plaster bases The plaster base still has its own way of existing for the time being.