Empty capsule and preparation method thereof
A technology of hollow capsules and glue, which is applied in capsule delivery, pharmaceutical formulations, medical preparations of non-active ingredients, etc. It can solve the problems of limited applicable population, poor compatibility, and difficulty in disintegration, and achieve low storage requirements, Good compatibility and good stability
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Embodiment 1
[0028] A method for preparing a hollow capsule, the hollow capsule is divided into two parts, a cap and a body, and the cap and the body of the prepared hollow capsule are required to be colorless and transparent, and the preparation steps are as follows: 1 part of potassium chloride and 1 part of Sodium lauryl sulfate was dissolved in 182 parts of deionized water, the temperature of the deionized water was controlled at 5°C, then 5 parts of carrageenan was added while stirring, and the remaining 3458 parts of deionized water was heated to 70 ℃ into the above solution, and keep the solution at 80°C for 10 minutes, then add 800 parts of hydroxypropyl methylcellulose while stirring, and finally stir the prepared glue evenly, the stirring speed is 50r / min, and the stirring time 10min, and then defoamed in a 40°C water bath for 10h; then the glue was molded through a dipping mold, and dried for 80min at a temperature of 25°C and a humidity of 35% to obtain a rubber blank. The thic...
Embodiment 2
[0030] A preparation method of a hollow capsule, the hollow capsule is divided into two parts, a cap and a body, and the cap and the body of the prepared hollow capsule are required to be white and opaque, and the preparation steps are as follows: 5 parts of sodium chloride and 2 parts of Sodium lauryl sulfate is dissolved in 500 parts of deionized water, the temperature of the deionized water is controlled at 20°C, then 90 parts of konjac gum is added while stirring, and the remaining 4500 parts of deionized water is heated to 90°C Add to the above solution, and keep the solution at 80°C for 25 minutes, then add 950 parts of hydroxypropyl methylcellulose while stirring, and finally stir the prepared glue evenly, the stirring speed is 75r / min, and the stirring time is 20min , and then defoaming in a water bath at 60°C for 10 hours; then add 4 parts of medicinal titanium dioxide to the glue, the temperature of the glue is 50°C, and the specific gravity of the glue is 1.05g / cm 3...
Embodiment 3
[0032] A preparation method of a hollow capsule, the hollow capsule is divided into two parts, a cap and a body, and the prepared hollow capsule is required to have both a red and transparent cap and a body, and the preparation steps are as follows: 2 parts of potassium chloride and 5 parts of Sodium lauryl sulfate was dissolved in 2112 parts of deionized water, the temperature of the deionized water was controlled at 10°C, then 20 parts of sodium alginate was added while stirring, and the remaining 4223 parts of deionized water was heated to 75 ℃ into the above solution, and keep the solution at 82°C for 15 minutes, then add 850 parts of hydroxypropyl methylcellulose while stirring, and finally stir the prepared glue evenly, the stirring speed is 60r / min, and the stirring time 12min, then defoaming in a water bath at 45°C for 11h; then add 0.6 parts of amaranth, 1.4 parts of carmine and 0.01 parts of brilliant blue to the glue, the temperature of the glue is 40°C, the glue Th...
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