JP7269052B2 - A solid composition evaluation device and a solid composition evaluation method using the same. - Google Patents

Description

TECHNICAL FIELD The present invention relates to an apparatus for evaluating the durability of solid compositions, particularly stick-like cosmetics such as lipstick, during use, and an evaluation method using the same.

A stick-like cosmetic such as lipstick may break or crack during application if a load exceeding a certain level is applied to the cosmetic. When the cosmetics are broken in this way, in the case of a cosmetic container that employs a delivery mechanism, the broken cosmetics are separated when lowered and cannot be accommodated in the sleeve.

Therefore, at the development stage of stick-type cosmetics, it is necessary to test whether the cosmetics have durability so that they do not break during use. 1) and a bending strength test using a measuring device such as a rheometer (Patent Document 2).

However, in the case of the actual use test, the evaluation takes time, and since the force applied during application differs depending on the evaluator, there were problems such as lack of reproducibility.

In addition, in the test to measure the breaking load with a measuring instrument such as a rheometer, the cosmetic is fixed and the load is applied, but since the load is applied differently from the actual application, the durability against the load during use cannot be evaluated. Not suitable for evaluation.

Therefore, instead of conventional testing methods and testing devices, there has been a demand for an apparatus and evaluation method that can reproduce the load applied to a stick-shaped cosmetic during use and objectively evaluate the durability during use.

JP 2010-265255 JP 2018-177765

Accordingly, the present invention provides a solid composition evaluation apparatus capable of reproducing the load applied during application of a solid composition typified by stick-shaped cosmetics and objectively evaluating the durability during use, and the same. The object is to provide a method for evaluating a solid composition using

The present invention is intended to solve the above problems, and includes a transport means for transporting an object to be coated, a moving part that holds and moves a solid composition in an arbitrary direction, and instructions for the transport means and the moving part. The moving part includes a horizontal moving part capable of reciprocating in the horizontal direction and in a direction perpendicular to the conveying direction of the object to be coated, an elevating part capable of reciprocating in the vertical direction, and a solid a load adjusting unit having adjusting means for adjusting the load applied to the composition, and in a state in which a constant load is applied to the solid composition by the load adjusting unit, each operation of the horizontal moving unit, the lifting unit, and the conveying means is controlled. The solid composition evaluation apparatus is characterized in that the solid composition is applied to the object to be applied in an arbitrary pattern by combination.

Further, according to the present invention, the load adjustment unit includes an arm portion rotatably supported by the bracket, and a solid composition holding portion provided at one end of the arm portion. A load weight can be attached to one end of the arm, and an adjustment weight can be attached to the other end of the arm. 2. The solid composition evaluation apparatus according to claim 1, wherein the solid composition held in the holding part comes into contact with and separates from the object to be coated.

Further, the present invention is a solid composition evaluation apparatus in which the movable part has a load measuring means for converting a load applied to a part of the arm part into an electric output and detecting the electric output.

Further, the present invention is a solid composition evaluation apparatus provided with heating means for the coating object.

Furthermore, the present invention is a combination of reciprocating movement of the solid composition in the horizontal direction, reciprocating movement of the solid composition in the vertical direction, and conveyance of the object to be coated, while a constant load is applied to the solid composition. The solid composition evaluation method is characterized in that the solid composition is applied to the object to be applied in an arbitrary pattern.

ADVANTAGE OF THE INVENTION The solid composition evaluation apparatus according to the present invention and the solid composition evaluation method using the same can always apply a constant load to apply the solid composition, thereby objectively evaluating the durability during use. can be evaluated to

In addition, the solid composition evaluation apparatus and solid composition evaluation method using the same according to the present invention combine the operations of the horizontal movement section, the lifting section, and the conveying means to evaluate the solid composition in an arbitrary operation mode. It can be applied to the object to be applied.

Further, in the solid composition evaluation device and the solid composition evaluation method using the same according to the present invention, the object to be applied is heated to a temperature close to human skin by the heating means, and the solid composition is applied to the human skin. The reproducibility of the case can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS The front view of the solid composition evaluation apparatus of this invention. The top view of the solid composition evaluation apparatus of this invention. (a) Diagram schematically showing operation mode 1 in which the solid composition is continuously applied, (b) Diagram schematically showing operation mode 2 in which the solid composition is applied intermittently, (c) Operation mode 1 3 is a diagram schematically showing operation mode 3 in which operation mode 2 is combined with operation mode 2. FIG. (a) Front view showing the state before starting the application operation of the solid composition evaluation apparatus of the present invention, (b) Front view showing the state at the start of the application operation of the solid composition evaluation apparatus of the present invention.

EMBODIMENT OF THE INVENTION Hereinafter, the embodiment of the solid composition evaluation apparatus of this invention and the evaluation method of the solid composition using the same is demonstrated concretely based on drawing. In addition, this invention is not restricted at all by these embodiments.

FIG. 1 is a front view of a solid composition evaluation apparatus 1 of the present invention, and FIG. 2 is a plan view of the same. As shown in the figure, the solid composition evaluation apparatus 1 of the present invention includes a base 2, a support frame 31 vertically installed on the base 2, a support frame 32, a moving part 4 attached to the support frame 31, It comprises transport means 5 arranged on the base 2 and control means 6 . The details of each unit will be described below.

The support frames 31 and 32 are gate-shaped, each having a pair of struts 311 and 321 vertically installed from the base 2, and horizontal crosspieces 312 and 322 extending over the struts 311 and 321. formed in a frame. The support frames 31 and 32 are arranged on the base 2 so that the horizontal beam portions 312 and 322 are parallel to each other with a predetermined gap therebetween.

Between the support frames 31 and 32, a conveying means 5 for the object to be coated is provided. The conveying means 5 of this embodiment is of a conveyor type having a pair of rollers 51 provided in the front and rear, and a belt 52 stretched over the rollers 51 and movable in a specific direction by axial rotation of the rollers 51. , as long as the object to be coated can be conveyed in a specific direction. In this embodiment, the rear roller 51 is pivotally supported by the strut 321 of the support frame 32 .

The support frame 31 is provided with the moving part 4 on the side facing the support frame 32 . The moving part 4 holds the solid composition A and moves it in an arbitrary direction, and is roughly divided into a load adjusting part 41 , a horizontal moving part 42 , an elevating part 43 and a bracket 44 .

The horizontal movement part 42 is attached to the horizontal beam part 312 of the support frame 31, and moves horizontally (front or back in FIG. 1, up and down in FIG. 2) and in a direction perpendicular to the conveying direction of the object to be coated. It is provided so that it can move back and forth.

The elevating section 43 is attached to the side of the horizontal moving section 42 facing the support frame 32 so as to be vertically reciprocatable. Further, a bracket 44 is provided on the side of the lifting section 43 facing the support frame 32 so as to protrude toward the support frame 32 . As driving means for the horizontal moving part 42 and the lifting part 43, pneumatic cylinders, hydraulic cylinders, and other known means can be used.

The bracket 44 is a substantially plate-shaped member, and the load adjusting portion 41 is provided on one side surface thereof. The load adjusting unit 41 includes holding means for holding the solid composition A to be measured, and load adjusting means and load measuring means applied to the solid composition A during application.

A basic configuration of the load adjusting section 41 is as follows. First, the arm portion 411 is pivotally supported at its intermediate portion by the pivotal support portion 441 of the bracket 44 so as to be rotatable within a predetermined range. A holding portion 417 is provided at one end portion (support frame 31 side) of the arm portion 411 . The holding part 417 holds the solid composition A and is formed so that the holding angle can be adjusted. A weight mounting portion 412 is provided vertically from the arm portion 411 above the holding portion 417 . Further, a weight mounting portion 414 protrudes substantially horizontally from the other end portion (on the support frame 32 side) of the arm portion 411 .

A load weight 413 and an adjustment weight 415 are detachably attached to the weight attachment portion 412 and the weight attachment portion 414, respectively. The method of attaching the load weight 413 and the adjustment weight 415 to the weight attachment portions 412 and 414 is not particularly limited. can be attached by inserting the weight attachment portions 412 and 414 of the respective weights.

The load weight 413 is used to apply a load to the solid composition A. By changing the weight and number of the load weight 413, the load applied to the solid composition A can be arbitrarily set. can be done. On the other hand, the adjustment weight 415 can be moved forward and backward (left and right in FIG. 2) with respect to the weight mounting portion 414 . By moving the adjustment weight 415 back and forth in this manner and fixing it at an appropriate position, the arm portion 411 can be balanced and adjusted to a horizontal state. In addition, it is preferable that the arm portion 411 is provided with a scale or the like for confirming whether or not the arm portion 411 is horizontal.

Further, the arm portion 411 is provided with a load cell 416 as measuring means for measuring the load applied to the solid composition during application. The load cell 416 used as the measuring means of this embodiment is formed in a so-called beam shape, and measures the load applied to one end of the beam shape by a strain cage. The load cell 416 is provided in a part of the arm portion 411, and can measure the stress that the solid composition receives from the contact surface with the object to be coated during coating. In addition, as a means for measuring the load applied to the solid composition during application, if the stress received by the solid composition from the contact surface with the application object is converted into an electrical output and detected, a load cell can be used. Not limited.

Furthermore, the solid composition evaluation device 1 of the present invention comprises control means 6 for controlling its operation. The control means 6 includes an operation section 61 for inputting instructions from the user, a display section 62 for displaying measurement results and the like, and transmits user instructions to the moving section 4 and the conveying means 5 .

The operation by the control means 6 is basically performed by instructing an arbitrary pattern of pre-programmed operations. Such arbitrary motions include, for example, movements of the moving part 4 and the conveying means 5, specifically, the distance, the number of reciprocating movements, or the moving speed (including acceleration) of the horizontal moving part 42, and the vertical movement of the lifting part 43. can be set by arbitrarily combining the number of times, intervals, and the conveying speed (including acceleration) and direction of the conveying means 5 .

The following are examples of operating modes that can be pre-programmed into the control means. FIG. 3(a) shows operation mode 1 in which the solid composition A is continuously applied. In the figure, the arrow X indicates the moving direction of the object to be coated, and the arrow Y indicates the lateral moving direction of the solid composition A orthogonal to the moving direction X of the object to be coated. An arrow Z indicates the moving direction of the solid composition A perpendicular to the coating surface of the object to be coated. Furthermore, L indicates the line of the trace of application on the object to be applied. In operation mode 1, first, the lifting unit 43 is lowered so that the solid composition A is grounded on the application target (Z1). Then, from that point, the solid composition A is moved leftward in the drawing by the horizontal moving part 42 (Y), and at the same time, the object to be coated is sent forward by the conveying means 5 (X). The combination of these movements leaves a slanting trace of application on the object to be applied from the ground contact starting point toward the lower left (L). Then, when the solid composition A has moved to the vicinity of the left end, the speed of the horizontal moving part 42 is gradually reduced to zero at the left end, and this time the direction is changed to the right and movement is started (Y). Then, when the solid composition A has moved to the right end, the direction is changed in the same manner, and the solid composition A is moved again to the left. In this way, while the conveying means 5 moves the object to be coated forward (X), the horizontal movement unit 42 reciprocates the solid composition A to the left and right, so that a zigzag coating trace ( L) remains. When such application work is completed, the elevating unit 43 is raised to separate the solid composition from the object to be applied (Z2).

FIG. 3(b) shows an operation mode 2 in which the solid composition A is applied intermittently. In operation mode 2, when the solid composition A is laterally moved, the conveying means 5 does not move the object to be coated. Therefore, the trace of application indicated by L forms a straight line in the horizontal direction. Then, the solid composition A is moved in the horizontal direction and lifted when it reaches either the left or right end (Z3), and the object to be coated is moved by the conveying means 5 while the solid composition A is lifted. After moving by the length indicated by the dashed line, the solid composition A is lowered and grounded on the object to be coated (Z4). Then, only the solid composition A is moved in the opposite direction without moving the object to be coated by the conveying means 5 again.

FIG. 3(c) shows operation mode 3, which is a combination of operation modes 1 and 2. FIG. In operational mode 3, the lateral movement is similar to operational mode 1; That is, due to the combination of the reciprocating movement (Y) of the horizontal moving part 42 to the left and right and the accompanying movement (X) of the object to be coated by the conveying means 5, the application trace of the solid composition A moves obliquely downward. (L). However, when the direction is changed, the solid composition A is raised (Z5), and the object to be coated is moved by the conveying means 5 by a predetermined amount while the solid composition A is fixed at the same position. After such movement, the solid composition A is lowered and grounded on the object to be coated (Z6), the solid composition A is moved to the opposite side (Y), and the object to be coated is moved by the conveying means 5 (X ).

The application operation by the solid composition evaluation apparatus 1 of the present invention is not limited to the operation modes 1 to 3 described above, and the movements of the moving part 4 and the transport means 5 can be appropriately combined. That is, the application direction of the solid composition can be linear, curved, or a combination thereof, and the application operation can be appropriately set to be continuous or non-continuous.

Further, the solid composition evaluation apparatus 1 of the present invention may be provided with means for heating the object to be coated. Specifically, in this embodiment, a lower heater 71 is provided inside the conveying means 5 and an upper heater 72 is provided in the support frame 32 . The lower heater 71 can heat the object to be coated from the back side, and the upper heater 72 can heat the object from the front side. By heating the object to be coated to a temperature close to that of human skin with these heating means, reproducibility of application to human skin can be improved. In addition, such a heating means may be provided so that the temperature setting can be adjusted by the control means 6 .

Hereinafter, the measurement and evaluation method by the solid composition evaluation device 1 of the present invention will be described. First, when the solid composition A is a stick-like cosmetic, the cosmetic contained therein is drawn out and fixed to the holding portion 417 in a state that it can be applied. At this time, the applied surface of the delivered cosmetic is directed downward, and in the case of a type in which the applied surface of the cosmetic is formed obliquely, the oblique applied surface should be parallel to the surface of the object to be applied. to adjust the fixing angle of the stick-shaped cosmetic.

Next, the object to be coated is set on the conveying means 5 . The application target to be used is not limited, but it is preferable to use artificial leather in order to reproduce the texture of the skin. For setting to the conveying means 5, the object to be coated may be placed on the surface of the belt 52 so as not to shift.

Next, an adjustment weight 415 is attached to the weight attachment portion 414, and the balance is finely adjusted by moving the weight attachment portion 414 back and forth (left and right in FIG. 2) to a position where the arm portion 411 is in a horizontal state. to fix. When the arm portion 411 becomes horizontal, the load applied to the solid composition A is zero.

Next, the load weight 413 is attached to the weight attachment portion 412 . Any weight and number can be selected for the load weight 413 to be attached, and by selecting such arbitrary weight and number, the load applied to the solid composition A during application is set. When such a load weight 413 is attached, the arm portion 411 loses its balance because the holding portion 417 becomes heavy, and the holding portion 417 side lowers as shown in FIG.

After the above pre-measurement preparations are completed, an arbitrary operation mode preprogrammed by the control means is selected, and an instruction for the operation mode is input. Based on the instructions from the control means 6, the solid composition evaluation apparatus 1 of the present invention starts to operate.

Based on the instruction from the control means 6, first, the elevating section 43 descends to the position where the application surface of the solid composition A contacts the application target and the arm section 411 returns to the horizontal state (Fig. 4b). In this state, all of the load from the load weight 413 is applied to the solid composition A at the time of application. In this manner, the application operation is started in the predetermined operation mode input by the control means 6 in a state where the solid composition A is applied with a constant load.

During the application operation, the measurement result of the load cell 416, that is, the stress that the solid composition receives from the contact surface with the object to be applied during application can be measured by the display panel of the control means. After the predetermined application operation is completed, the solid composition A is removed from the holding part 417, and the state of cracks, folds, etc. of the solid composition is observed and evaluated.

The solid composition evaluation apparatus 1 of the present invention can be suitably used for evaluating the durability of stick-shaped cosmetics represented by lip cosmetics, but the evaluation target is not limited to this, and by applying It can be widely applied to the solid composition used.

DESCRIPTION OF SYMBOLS 1... Solid composition evaluation apparatus 2... Base 4... Moving part 5... Conveying means 6... Control means 31... Support frame 32... Support frame
41 ... Load adjusting section 42 ... Horizontal movement section 43 ... Lifting section 44 ... ... Bracket 51 ... Roller 52 ... Belt 61 ... Operation section 62 ... Display section 71 ... Lower heater 72 ... Upper heater 311 ... Strut 312 ... Horizontal rail section 321 ... ... Strut 322 ... ... Horizontal rail section 411 ... Arm section 412 ... Weight mounting section 413 ... Load weight 414 ... Weight mounting section 415 ... Adjustment weight 416 ... ... Load cell 417 ... Holding part 441 ... ... Axle part A ... ... Solid composition L ... Application mark line X ... Moving direction of application object Y ... Horizontal moving direction of solid composition Z1, Z2, Z3, Z4 , Z5, Z6 … Vertical movement direction of the solid composition

Claims (6)

A conveying means for conveying an object to be coated , a moving section for holding and moving a solid composition having an inclined surface in an arbitrary direction, and a control means for inputting instructions to the conveying means and the moving section. The moving part includes an angle adjusting part capable of adjusting the angle for holding the solid composition, a horizontal moving part capable of reciprocating in a horizontal direction and in a direction orthogonal to the conveying direction of the object to be coated, and a reciprocating up and down direction. A movable elevating unit and a load adjusting unit having means for adjusting the load applied to the solid composition are provided, and the angle adjusting unit presses the inclined surface of the solid composition against the object to be coated. and applying a constant load to the solid composition by the load adjusting unit, the solid composition is applied to the application target in an arbitrary pattern by combining each operation of the horizontal moving unit, the lifting unit, and the conveying means A solid composition evaluation device characterized in that it is applied to an object. The load adjustment unit includes an arm portion rotatably supported by the bracket and a solid composition holding portion provided at one end of the arm portion, and the holding portion of the arm portion is provided. A load weight can be attached to one end of the arm, and an adjustment weight can be attached to the other end of the arm. 2. The solid composition evaluation apparatus according to claim 1, wherein the applied solid composition comes into contact with and separates from the object to be coated. 3. The solid composition evaluation apparatus according to claim 2, wherein the load adjusting section has load measuring means for converting a load applied to a part of the arm section into an electrical output and detecting the electrical output. 4. The solid composition evaluation apparatus according to any one of claims 1 to 3, further comprising means for heating the object to be coated. The solid composition is held at an angle at which the inclined surface of the solid composition having an inclined surface is pressed against the object to be coated, and a constant load is applied to the solid composition, and the horizontal direction of the solid composition A method for evaluating a solid composition, wherein the solid composition is applied to an object to be coated in an arbitrary pattern by a combination of reciprocating movement of the solid composition, vertical reciprocating movement of the solid composition, and conveyance of the object to be coated. 6. The method for evaluating a solid composition according to claim 5, wherein the stress received by the solid composition from the contact surface with the object to be coated during application is measured.

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