JPS60251956A - Masking jig used in painting - Google Patents

Abstract

PURPOSE:To make a masking jig easy to use and to certainly secure the same, by forming the jig from the string part for forming a parting line and the film part secured to said string part and providing the sticking agent adhered to the string part along the longitudinal direction thereof and sticking the string part to a desired position. CONSTITUTION:For example, a string part 2 is formed of a main body part 4 of which the outer peripheral surface is almost semi-circular and the recessed part 5, which has a semi circular inner surface, corresponding to said main body part 4 and a sticking agent comprising rubbers, an acrylic polymer or an ethylene/ vinyl acetate copolymer is received in said recessed part 5. The attachment of this masking jig 1 is performed by sticking the string part 2 to the region close to the part C to be painted of the non-painting part M and the parting line of a paint can be formed.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a coating masking jig for coating only a portion of an object to be coated to cover the unpainted portion, and in particular, tJL4 plastic car bumpers, etc.
It is useful when using i.

(Prior art) When painting only a part of the surface of various products such as metal products or resin products, or when applying multiple types of coatings with different colors to the surface of these products, it is necessary to It is necessary to expose only a portion of the area to be painted, and cover or cover the other unpainted areas.

Conventionally, in order to coat the non-painted parts of the object to be coated, in order to obtain the boundary line between the surface of the non-painted part and the surface of the part to be painted, that is, the parting line, the operator manually removed the unpainted part of the part to be coated. Adhesive tape was attached to the area close to the painted area, and a masking material covering the non-painted area was fixed to the object using the adhesive tape.

In this way, if the masking work was performed by pasting the tape onto the object to be coated, the work would have to be done carefully to obtain accurate parting lines on the sides of the tape, making it difficult to paint mass-produced products. There were problems in that the workability was poor and the method lacked practicality.

Therefore, when painting the to-be-painted part of an object having an unpainted part and a to-be-painted part, a set part that forms a parting line for the paint to be applied to the surface of the to-be-painted part, and a part for the part to be painted, The applicant has proposed a masking jig for painting, which has a film part fixed to the part and covering the non-painted part.

As a result, the masking jig can be easily and quickly attached to the object to be coated, and the parting line that forms the boundary between the surface of the object to be coated and the surface of the object to be coated can be accurately formed. It is now possible.

However, in order to attach this masking jig for painting to the object to be painted, a groove is formed in the part that will become the parting line of the object to be painted, and the assembled part of the masking jig for painting is stretched over this groove. However, during painting, wind pressure may cause spraying, and sometimes G-forces may cause the paint to bake.
- The masking jig sometimes came off from the object to be coated due to the pressure of the warm air. In addition, the t
It was difficult to use this masking jig for painting if a groove was not formed in the area to be coated.

(Purpose of the Invention) The present invention allows a masking jig to be easily and quickly applied to the object to be coated, and not only can the parting line of the object to be coated be accurately formed, but also the masking jig can be easily and quickly applied to the object to be painted. The masking jig should be securely fixed so that it does not come off the object to be coated due to wind pressure or hot air pressure at the opening for paint baking, and the masking jig should be securely fixed so that no grooves are formed. The purpose is to enable this painting masking jig to be used also for objects to be painted.

(Structure of the Invention) To achieve the above object, the present invention provides a method for coating a non-painted part when painting the to-be-painted part of an object to be painted, which is a part of the object to be painted and a non-painted part.・In the masking jig, there is a set part that forms a cutting line of the paint applied to the surface of the part to be painted, and a set part that is attached to the set part with γ0 in the longitudinal direction, and the set part is connected to the non-painted part. The masking jig for painting has an adhesive that adheres to a portion close to the portion to be painted, and a film portion that is fixed to the assembled portion and covers the non-painted portion.

(Example) Hereinafter, the masking jig of the present invention will be explained based on the drawings.

Figures 1 (△) to (D> each show an automobile bumper as the object to be coated.Modern automobile bumpers have been designed to improve the car body protection function in the event of a collision and to increase the degree of freedom in shaping. The mainstream material is synthetic resin, which is more elastic than metal and absorbs shock.
The automobile bumpers shown in (D) are each molded from synthetic resin.

The automobile bumper W, not shown in FIG.
Either only the upper side is painted, or the upper and lower sides are painted with separate paints of different colors. The automobile bumper W shown in FIG. 1(B) has a groove G formed along the longitudinal direction in the central part of its surface, and only the lower side with this G in the center! The upper and lower sides can be painted with different paints, or with different colors. The automobile bumper W shown in Fig. 1 (C) has two parallel grooves G formed in the center of its surface, and for example, the upper and lower sides other than the area between the grooves G are painted. The automobile bumper W shown in FIG. Painting is applied to other parts.

Figure 2 (△) shows a case in which, for example, of the object W shown in Figure 1 (A>), the upper part is the unpainted part M with the center part as the boundary, and only the lower part C is to be painted. , and Figure 1 (B
), for example, the upper side of the groove G is
It is a figure which shows the masking jig 1 used when painting only the lower to-be-painted part C as 1 part M. Also, Figure 2 (
B> is a case where the part of the object W shown in Fig. 1 (C) surrounded by the two grooves G is treated as the non-painted part M, and only the other part to be painted C is painted. FIG. 2(C) is a diagram showing a masking jig 1 for painting used in FIG. 1(D).
＞ shows a masking jig 1 used when painting only a part of the workpiece C other than the part surrounded by the loop-shaped groove G as a non-painting part M of the workpiece W shown in It is a diagram.

Each masking jig 1 is shown in FIG.
As shown in FIG. 2, an automobile bumper is used as an object W to be painted, and there is a set part 2 that forms a parting line for the paint to be applied to the surface of the part C to be painted, and a set part 2 that is attached to this set part 2 along the longitudinal direction. It has an adhesive 6 for adhering the non-painted portion M to a portion of the non-painted portion M close to the painted portion C, and a membrane portion 3 that is fixed to the assembled portion 2 and covers the non-painted portion M. The assembly portion 2 and the membrane portion 3 are fixed together by adhesive or heat fusion.

In the painting masking jig 1 shown in FIGS. 2(A) to 2(C), the assembled part 2 includes a main body part 4 whose outer peripheral surface is approximately semicircular,
It is formed by a recess 5 having a corresponding semicircular inner surface, and an adhesive 6 is housed in the recess 5. Therefore, for the object W shown in FIG. 1(A>), FIG. 2(A)
In order to attach the masking jig 1 shown in FIG. 1, the assembled part 2 can be attached to a portion of the non-painted part M that is close to the painted part C to form a cutting line of the paint. As shown in Fig. 2 (△), the opening angle iθ of the main body 4 should be set slightly smaller than 180 degrees so that when the main body 4 is pressed, the opening angle will be approximately 180 degrees. be. In addition, when an automobile bumper is molded from synthetic resin and grooves G are formed as shown in FIGS. 1(B) to 1(D), the width of the groove G is may not be maintained uniformly over the entire length, resulting in dimensional variations. Therefore, even if there is some variation in the dimensions of the groove G, the assembled part 2 to be fitted into the groove G can be easily fitted manually and is formed so as to reliably maintain the fitted state. There is a need. For this reason,
In addition to using materials such as natural rubber, polyurethane rubber, synthetic resin, etc. for the assembly part 2 that are elastically deformable so that the cross-sectional shape itself can be changed,
As shown in C), the assembled part 2 is formed by a main body part 4 and a circular recess 5 that is open to the outside of this main body part 4 and formed along the longitudinal direction. When fitting into the groove G, it is possible to follow the dimensional error of the groove G and make it elastically deformable so that the cross-sectional shape can be sufficiently changed.

Figures 3 (, A) and (B) show the car bumper shown in Figure 1 (A) as the object to be painted W, and only the lower part of the boundary as the area to be painted C, in order to paint this part. , Figure 2 (A
) is a diagram showing a state in which the painting masking jig 1 shown in FIG.

First, the object W to be coated is placed on the receiver 12 of the movable trolley 11 which is movable by the wheels 10, and the object W to be coated is
The assembled portion 2 of the masking jig 1 shown in FIG. 2 (△), which has been cut to a longer length than that shown in FIG. At this time, the assembled part 2 shown in the figure consists of a main body part 4 whose outer surface is approximately semicircular, and a recessed part 5 which is approximately semicircular and accommodates the adhesive 6. 2 or by pressing a jig with a roller (not shown) against the assembled part 2, the adhesive 6 flows out from inside the concave sa5 onto the surface of the object W to be coated, and the assembled part is easily removed. 2 can be attached to a portion of the non-painted portion M that is close to the painted portion C. Then, the surface of the non-coated part M of the object W to be coated is covered by the film part 3, and the side part 3a of the film part 3 located on the opposite side to the assembled part 2 and both ends of the masking jig 1 are covered. Wrap it around the back side of the object W to be coated.

In this state, the movable trolley 11 is transported into a painting booth (not shown) and the paint is sprayed with a paint gun, and then the movable trolley 11 is transported into a hot air drying oven to bake the paint. Even if the painting masking jig 1 is exposed to wind during the work, the assembly part 2 is adhered to the workpiece W by the adhesive 6, so the painting masking jig 1 will not come off the workpiece W and the paint will not come off. When the coating masking jig 1 is removed from the workpiece W after drying, the assembly part 2 removes the masking jig 1 from the workpiece W.
A parting line serving as a boundary between the painted surface C and the non-painted portion M is accurately and neatly formed on the surface at the position indicated by the symbol P in FIG. 3(B).

Incidentally, depending on the coating conditions, the masking jig 1 may be removed from the object to be coated W- before baking the paint.

Figure 4 (△) (B) is based on Figure 1 (B), with an automobile bumper as the object to be coated W, and only the lower part of this with the groove G formed therein as the center, as the part to be coated C. In order to paint this portion, the coating masking jig 1 shown in FIG. 2(A) is attached to the object W to be coated. First, the object W to be coated is placed on the receiver 12 of the movable trolley 11 which can be moved freely by the wheels 10, and the masking material shown in FIG. The assembled portion 2 of the jig 1 is attached to a portion of the non-painted portion M that is close to the painted portion C. At this time, the illustrated assembled portion 2 has a main body portion 4 whose outer surface is approximately semicircular; Since it is approximately semicircular and consists of a concave portion 5 that accommodates the adhesive 6, the operator can crush the assembled portion 2 with his or her fingers, or press a jig with a roller (not shown) against the assembled portion 2. (By doing so, the adhesive 6 flows out from the inside of the recess 5 onto the surface of the object W in if G, and the assembled part 2 can be easily placed in the groove G. 3 covers the surface of the non-coated portion M of the object W to be coated, and also covers the side portion 3a of the film portion 3 located on the opposite side to the assembled portion 2 and both ends of the masking jig 1 to the object W to be coated. In this state, the movable trolley 11 is transported into a painting booth (not shown), and after spraying paint with a painting gun, the movable trolley 11 is placed inside a hot air drying oven.
Bring in the paint and bake the paint +]. Even if wind hits the painting masking jig 1 during these operations, the adhesive 6
Since the assembled part 2 is adhered to the object W to be coated, the masking jig 1 for painting does not come off from the object W to be coated, and the masking jig 1 for painting can be removed from the object W after the paint has dried. □There is a parting line on the surface of the object W that forms the boundary between the painted surface C and the non-painted part M as shown in Figure 4 (B).
It is formed accurately and neatly at the position indicated by the symbol P.

When painting only the part C of one object W to be coated shown in Fig. 1 (C), masking the part shown in Fig. 2 (B) that is cut longer than the entire length of the object W to be coated. Using jig 1, the fifth
As shown in Figures (A) and (B), the two assembly parts 2 are fitted into the respective grooves G.

At this time, as in the case described above, the assembly part 2 can be easily fitted into the groove G by crushing the main body part 4 of the assembly part 2 with fingers or by pressing the assembly part 2 using a jig (not shown). At the same time, the adhesive 6 adheres to the surface of the object W to be coated from within the recess 5, and the assembled portion 2 is adhered to the object W to be coated. Next, the paint is sprayed and the paint is dried.

As a result, a parting line is accurately and neatly formed at the position indicated by the symbol P in FIG. 5(B).

In order to paint only the part C of the object W shown in FIG. Using two painting masking jigs 1 shown in Figure (C)), as shown in Figure 6,
Fit parts 1 and 2 of each masking jig 1 into the two grooves G, and attach the assembled parts 2 to the object W to be coated using the adhesive 6.
Stick to. The state in which the assembled portion 2 is fitted into the groove G is the same as that shown in FIG. 5(B). Furthermore, Figure 2 (
As described in A), after manufacturing the masking jig 1 for painting, until it is transported to the object W to be coated, a virtual line made of paper, resin, etc. is used to prevent dust from adhering to the adhesive 6. The adhesive 6 is covered with a coating material 8 shown in FIG.
Make sure you can take the pictures.

Masking jig 1 for painting shown in Figure 2 (△) to (C)
As the material of the assembly part 2 and the membrane part 3, it is possible to use rubber mixtures or synthetic resin mixtures such as natural rubber, polyurethane, polyvinyl chloride, and polyethylene. It is also possible to use aluminum foil or a rubber mixture or synthetic resin mixture coated with aluminum powder on the surface. When the object W to be coated is a plastic automobile bumper, and the base material is a polymer with a non-polar molecular structure such as a polypropylene mixture, Any material may be used for the masking jig 1 for painting.

However, when masking an automobile bumper whose base material is a polymer with a polar molecular structure such as polyurethane, nylon, or polybutylene terephthalate,
It is better not to use a material for the masking jig 1 that is made of a substance containing a plasticizer with a polar molecular structure, such as a soft polyvinyl chloride mixture. This is because when the paint dries, the plastic material with a polar molecular structure contained in the material of the masking jig 1 migrates into the material of the automobile bumper, and the surface of the bumper W, which is the object to be painted, is attacked. This is because there are cases. Therefore, when masking an automobile bumper W containing such a material, it is desirable to use a material as the masking jig 1 that does not contain a plasticizer having a polar molecular structure, such as polyethylene or polypropylene.

The adhesive 6 attached to the phase part 2 is made of rubber, acrylic polymer, and polyethylene vinyl acetate polymer (EV).
, Ac) are typical, but when an automobile bumper W is the object W to be coated, rubbers are suitable. The rubber adhesive 6 is made by adding a filler such as clay to polyisoprene, but after baking the paint in a hot air drying oven, the masking jig 1 for painting is attached to the object W to be coated. It is desirable that no adhesive 6 remains on the surface of the object W to be coated when it is peeled off.
It is preferable to use a mixture containing a crosslinking agent composition as the adhesive 6. As the crosslinking agent composition, crosslinking reactive polymers such as polyisoprene, natural rubber, and crosslinking agents such as tetramethylthiuram disulfide (TMT) and sulfur can be used! FIGS. 7(A> to (1)) are views of a masking jig 1 for painting according to other embodiments of the present invention without showing the phase part 2,
In these figures, virtual lines indicate the phase portion 2 before it is adhered to the object W to be coated.

The phase part 2 shown in FIG. 7 (△) has a substantially circular outer peripheral surface and is formed of a solid material, and is adhesively attached to the opposite side of the part of the phase part 2 to which the membrane part 3 is fixed. Agent 6 is attached. In the phase part 2 shown in FIG. 7(B), a concave part 5 which is open to the outside and has a circular inner surface is formed in a main body part 4 whose outer circumferential surface is approximately circular. is attached. In addition, the one shown in FIG. 7 (C1) is one in which the opening of the recess 5 to which the adhesive 6 is attached is extremely narrowed, and the one shown in FIG. Hole 5a
A slit 5b is provided so that the hollow hole 5a opens to the outside. With these configurations, the same figure (C
I) In the masking jig shown in (C2), phase part 2
Before adhering to the object W, as shown by the imaginary line,
The adhesive 6 is covered with the main body 4 and is stored in a state not exposed to the outside. And Figure 7 (D) (
E) shows the case where the inner surface shape of each recess 5 is made into a Daruma shape. The adhesive 6 is applied to the inner part of the recess 5.

Next, FIG. 7 ([) shows an attempt to fix the phase part 2 and the film part 3, which were separate bodies, with the adhesive 6, and at the same time to make the phase part 2 adhere to the object W to be coated. As a result, the step of fixing the phase part 2 and the film part 3 of the coating masking jig 1 by adhesive or heat fusion can be omitted, and the manufacturing cost can be reduced.

As for the shape of the 1f11 part 2, the main body part 4 may have a triangular cross section as shown in the same figure (G), or
It is possible to make it into a rectangular shape as shown in , or to make it into various shapes. Similarly, the shape of the recess 5 can be various shapes other than those described above. And the same figure C
As shown in I), it is also possible to form a protrusion 7 on the outer periphery of the main body 4 to define a parting line. The protrusions 7 may be formed on both left and right side surfaces of the main body 4, and the protrusions 7 can also be formed on the main body 4 of various shapes as described above. In addition, Fig. 7 (A) (B) (D) (G) (+-
1> In the painting massing jig 1 shown in (1), as in the case shown in FIG. When attaching a masking jig to the object W, the covering material 8 is removed, but in the case shown in FIG. Since the dew does not occur quickly, the covering material 8 is unnecessary.

FIGS. 8(A) to 8(E) are views showing a masking jig 1 according to another embodiment of the present invention, in which the automobile bumper shown in FIG. A painting masking jig 1 is used to paint only the lower side of the formed groove G.The painting masking jig 1 is basically the same as that shown in Fig. 2(A). However, a large number of slits 9 are formed in the part of the assembled part 2 that corresponds to the corner Q of the object W to be coated, and that bends when the assembled part 2 is attached to the groove G. The shape may be a thin cut as shown in Figure 8 (C), a wide cut as shown in Figure 8 (D), or a thin and intersecting cut. This allows the assembled portion 2 to easily bend following the corner Q of the object W to be coated. It goes without saying that it is also possible to form the slits 1 to 9 in the detail 2 when used.

Next, the experimental results of the painting masking jig 1 of the present invention will be explained with reference to Table 1. In this experiment, the object W to be coated had a cross-sectional dimension of 70 mm above the groove G and 80 mm below the groove G in Fig. 1(B).
Fig. 1 (B) made of a polypropylene mixture having a groove G formed therein having a width of 5 mm and a depth of 3 mm.
An automobile bumper with the shape shown in was used. The painting masking jig 1 used in the experiment had the same shape of the assembly part 2 as shown in FIGS. 2 (Δ) to (C), and the outer diameter of the main body part 4 of the assembly part 2 was 5 mm. A recess 5 having an inner diameter of 3 mm is formed in the main body 4, and an adhesive 6 is adhered therein. The thickness of the membrane portion 3 is 0.075 mm.

Then, the coating masking jig 1 as described above is manufactured using various materials, - the surface of the non-coated part M of the object W to be coated is coated, and the coating is applied by spraying (di-coating) and in a hot air drying oven. In Table 1, natural rubber is
i ratio is natural rubber 100. A mixture of 1 stearic acid, 5 zinc white, 2 sulfur, and 1 butramethylthiuram disulfide is shown, and the polyurethane is Paraprene P22S, a trade name manufactured by Nippon Nitran Co., Ltd. Also, Pv
C has a weight ratio of polyvinyl chloride (degree of polymerization 2600) 1'O
O, barium stearate 1, dioctyl phthalate 1-
150, a mixture of tribasic sulfate 7, PE is high density polyethylene (specific gravity 1.35, melt index 0
．． 3) is shown.

In addition, the adhesive in Experimental Example 1 is a non-crosslinked type, and the weight ratio is polyisoprene (average molecular weight 47,000).
A sufficiently mixed mixture of 100% clay, 120% clay, and 2% paraffin was used. The purpose of filling with clay was to reduce the adhesive strength. In addition, as a cross-linked adhesive, the weight ratio is natural rubber 20. Polyisoprene (average molecular weight 47,000
) 50, polyisobutylene average molecular ffi 6000
0) A sufficiently mixed mixture of 30 L/-100, 2 sulfur, and 1 liter of tetramedyldiuram gylylnoide was used. Of these, natural rubber and polyisoprene are crosslinking reactive polymers, and sulfur and tetramemolthiuram disulfide (TMT) are crosslinking agents. Polyisobutylene is a non-crosslinking polymer, and was used to maintain some tackiness in the adhesive mixture even after the crosslinking reaction.

All experiment scores are 10 points. Then, paint was sprayed on each trial at a wind speed of 20 m/s, and then 12
The paint was baked in a drying oven flowing with warm air at 0°C.

"Removal of jig # during spraying" in Table 1 indicates the observation result of whether the assembled part 2 of the masking jig 1 for painting was partially detached due to the wind during the spraying operation (tc). ``Jig status after spraying'' refers to the observation results of whether the masking jig 1 can withstand the heat of the paint baking, that is, whether the masking jig 1 does not lose its shape due to heat melting or softening, or whether separation occurs. show. In addition, the situation at parting line 1 shows that the paint is between phase 2 and groove G.
This shows the observation results of whether or not a clear parting line is formed with the contact point with the wall as the boundary, and according to the painting masking jig 1 used in the experiment, all of these results are good. became. In Table 1, /\ means that a portion of the adhesive remained on the surface of the object W to be coated when the masking jig 1 was removed after painting, and ◯ means that the sample as a whole was in good condition.

From this, if an adhesive containing a cross-linking agent composition is used, no adhesive 6 will remain on the surface of the object W to be coated when the coating masking jig 1 is removed after the painting operation is completed. It has been found that this method is preferable from the viewpoint of workability, since there is no need to remove the adhesive from the surface of the object W to be coated later. In the above embodiment, FIGS. 1A to 1D are shown as the object W to be coated, but as shown in FIG. May be installed.

(Effects of the Invention) As described above, according to the present invention, when painting the coated part of an article having a non-painted part and a painted part, the unpainted part is coated. In the masking jig for painting,
A phase part that forms a parting line for the paint applied to the surface of the painted part, and a part that is attached to the assembled part along the longitudinal direction and that connects the assembled part to the non-painted part that is close to the painted part. Since the adhesive that sticks to the surface and the film part that is fixed to the phase part and covers the non-painted part are separated, the masking jig for painting can be easily and quickly attached to the object to be painted. In addition to accurately forming the cutting line, since the masking jig for painting is fixed to the object to be coated with an adhesive, spraying under masked conditions is not necessary during painting. It has an excellent effect that the masking jig does not come off from the object to be coated during baking drying and can be used even when a groove is not formed in the parting line of the object to be coated.

(Margin below)

[Brief explanation of the drawing]

Fig. 1 (△) to (I)) are perspective views showing an automobile bumper as an object to be coated, and Fig. 2 <A> to (C) shows a masking jig for painting according to an embodiment of the present invention. Perspective view, 3rd
The figure (△) is based on the figure 1 (△) and the object to be coated is shown in figure 2 (
△) is a perspective view showing the state in which the painting masking jig is installed, Fig. 3 <8> is a sectional view taken along the line G in Fig. 3 (△), and Fig. 4 (A) is the same as Fig. 1. For the object to be coated shown in (B), what is shown in Fig. 2 (Δ)? A perspective view showing the state in which the masking jig for I painting is installed, Figure 4 (B) (
5 <A)
is a perspective view showing the state in which the painting masking jig Q shown in FIG. 2 ('B) is attached to the object to be coated shown in FIG. 1 (C), and FIG. (A) is a cross-sectional view taken along the line v-■; Take (
7(A) to (1) are sectional views showing the phase portion of a masking jig for painting according to another embodiment of the present invention, and FIG. 8(△> 8(B) is a perspective view showing a state in which a painting masking jig according to still another embodiment of the present invention is attached to an object to be coated; FIG. 8(B) is a cross-sectional view taken from FIG. 8(A); Figures (C) to (E) are perspective views showing the main parts of the painting masking jig used in Figure (A), and Figure 9 is a main part of the painting masking jig according to another embodiment of the present invention. It is a partial sectional view. 1... Masking jig for painting, 2... Assembling part, 3...
・Membrane part, 4... Main body part, 5... Recessed part, 5a... Hollow hole, 5b... Slit, 6... Adhesive, 7...
Projection, W... object to be coated, M... non-painted part, C...
Part to be painted, G...Groove. Patent applicant Nissan Motor Co., Ltd. Sumikros Kogyo Co., Ltd. No. 7 (A) (B) (C2) (D) (E) Shiku G) (H) 6 6 (CI) (I) Figure 8 (C) (D) (E) Continuation of Figure 9, page 1 0 Inventor Yama 1) Yutaka @ Inventor Ishii Association @ Inventor Tadahiko Morigaki 0 Inventor Yutaka Inagaki ○ Inventor Mori Seishin Hironodai, Zama City 2-500 @ Inside Nissan Motor Co., Ltd. Zama Plant 560-2 Okazu Koku, Atsugi City Inside Nissan Motor Co., Ltd. Technical Center 560-2 Okazu Koku, Atsugi City Inside Nissan Motor Co., Ltd. Technical Center 18 Toba, Kosugi-cho, Imizu-gun, Toyama Prefecture Sumikros Kogyo Sumikros Kogyo Co., Ltd., 184 Toba, Kosugi-machi, Imizu-gun, Uchitoyama Prefecture

Claims (2)

[Claims] (1) When painting the to-be-painted part of an object having a non-to-be-painted part and a to-be-painted part, a masking jig for painting that applies a load to the non-to-be-painted part applies the coating to the surface of the to-be-painted part. a set part that forms a parting line of the paint to be painted; an adhesive that is attached to the set part along the longitudinal direction and sticks the set part to a part of the non-painted part that is close to the part to be painted; A masking jig for painting, comprising a membrane part fixed to the assembled part and covering the non-painted part. (2) The masking jig for painting according to claim 1, wherein the adhesive is made of a mixture containing a crosslinking agent composition.