JPS63278089A - Manufacture of powder sample - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is applicable to powder samples of cosmetics, etc. This relates to the yJ manufacturing method.

[Prior Art 1] Generally, samples of powder cosmetics (foundation, eye shadow, etc.) are prepared by forming a small container out of plastic or metal, and filling the small container with a sample. This type of sample product has high costs such as container costs and processing costs, and requires a relatively large number of samples to be filled, making it expensive.

In order to prevent such drawbacks, powder cosmetics have been applied to paper using a roll coater, or printed using flexographic printing or screen printing, and then covered with a cover. In this case, the raw material powder must be converted into ink using an appropriate solvent, and in this case, the substances and methods specified in the Pharmaceutical Affairs Law must be used, which is very restrictive. In addition, in this type of printing, the primary color is removed by the plate when printing the secondary color, so it is not possible to print a large number of types without affecting the previous sample, and the workability is also poor. There were also problems.

[Problems to be Solved by the Invention] This invention was made to solve the above-mentioned conventional problems, and it is possible to print powder without converting it into ink, and to efficiently print multiple types on the same surface. The purpose of this invention is to provide a method for producing powder samples.

[Means for Solving the Problem] As a means for solving this problem, the present invention is based on electrostatic screen printing, and in particular, it statically applies powder such as cosmetics to a printing medium such as art paper. In a method of manufacturing a sample by electrostatic screen printing, a high voltage is applied to the powder, the printing material is printed without contact according to the pattern of the electrostatic screen, and after this printing, heat treatment, etc. This method is characterized by not performing a fixing step.

[Example] Hereinafter, an example in which a sample was manufactured using a foundation will be described in detail.

Powder particle size is 18-100μ, electrical resistance is 1O-70C
Relative humidity 40~ using foundation of 1 or less as raw material
Adjust to 50%, 3. By repeating electrostatic screen printing several times on art paper as a printing medium using a 150-20G mesh screen applied with a high voltage of Goo Volt, it is possible to print 3-4 types of foundation as samples. Ta.

Thereafter, each of the samples was covered with a separately prepared top paper to complete the sample.

In normal electrostatic screen printing, the attached powder ink is fused using heat or solvent vapor to fix it after printing, but in this case, such a fixing process is not performed and the ink is simply printed as is. It is characterized by certain things. This is for the purpose of maintaining the foundation as it is without changing its essence (appearance, composition, critical condition, feel, etc.).

When we actually tried the sample product manufactured in this way, we found that it felt exactly the same as the original foundation.

[Effects of the Invention] As explained above, this invention uses electrostatic screen printing to print powder on a printing material, and since it does not fix after printing, it is possible to convert raw materials into ink as in the past. Samples can be manufactured freely without being subject to any restrictions under the Pharmaceutical Affairs Law, and the raw material powder does not essentially change, and even when printing many types, the previous color remains the same. It has excellent effects such as not being affected by trapping, etc.

In addition to cosmetics, the method of this invention can be widely applied to food-related (flour, starch, bean flour, etc.) samples, drug-related (medicines, reagents, etc.) and other powder samples.

Claims (1)

[Claims] In a method of manufacturing samples by electrostatic screen printing of powder such as cosmetics on a printing medium such as art paper,
A powder sample product characterized in that a high voltage is applied to the powder, the printing material is printed without contact according to the pattern of the electrostatic screen, and a fixing process such as heat treatment is not performed after printing. manufacturing method.