JPH01148366A - Masking material - Google Patents

Abstract

PURPOSE:To enable convenient attachment of a masking material corresponding to the shape and size of a part where the surface treatment of a material to be treated should be avoided, and to permit easy stripping of the masking material after it is used by constituting the masking material with a plastic material. CONSTITUTION:A masking material 10 comprising a plastic foam is torn with hand along stripe grooves 12 to a size corresponding to the size of a plate- shaped part 3A where surface treatment of a material 3 to be treated should be avoided. The masking material 10 is stuck to the part 3A of the material 3 to be treated through a layer 13 of an adhesive by peeling off a releasing sheet 14. In this stage, a surface treating agent is blown to the material 3 from a spray gun 2, etc., executing thus the surface treatment. Then, the masking material 10 is removed from the material 3 before or after heat-treatment by, for example, putting a hook through the masking material 10.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a masking material used in surface treatments such as painting and plating.

[Background of the invention]

For example, when applying a surface treatment agent such as anti-corrosion paint to metal structures such as the underside of automobile floors, bridges, and machine tools, the paint should not be applied to parts where parts are attached or where bolt holes are located. It is common practice to mask parts and bolt holes, apply paint, and then remove the masking.

[Conventional technology]

Conventionally, in order to perform such masking, for example, the 59th
As shown in the figure, masking was performed by pasting adhesive tape (2) on areas of the object to be treated (1) where surface treatment should not be performed.

[Problem that the invention seeks to solve]

However, in such conventional methods, if the area where surface treatment should not be applied has a width wider than the width of the adhesive tape (2), multiple strips of the adhesive tape (2) must be applied. First, it takes a lot of effort to stick it on, and it also takes time and effort to peel off K after surface treatment.

Furthermore, if a heat treatment such as heating drying or baking is performed after the surface treatment, the adhesive tape (2) will be burned to the surface to which it is attached, making it very difficult to peel it off.

[Means to resolve the barrier points]

The present invention provides a masking material made of plastic as a means for solving the above-mentioned conventional problems.

Examples of plastics used in the present invention include urea resins, melamine resins, phenol resins, epoxy resins, urethane resins, and IP-curable acrylic resins.

Thermosetting synthetic resins such as phthalic acid resins, unsaturated polyesters, and resorcinol resins, polyethylene, polypropylene,
Polyvinyl chloride, polyvinylidene chloride, polystyrene, polyvinyl alcohol, polyvinyl formal, polyvinyl butyral, vinyl acetate tv@resin, thermoplastic acrylic resin, acrylonitrile-butadiene copolymer, styrene-butadiene copolymer, acrylonitrile-butadiene-styrene Copolymer, ethylene-propylene copolymer, ethylene-propylene terpolymer, vinyl acetate
It affects all kinds of plastic films or foams, including thermoplastic synthetic resins such as ethylene copolymers, cellulose-based plastics such as cellulose acetate and cellulose nitrate, silicone, fluororesins, polyamides, etc., and is a hazardous substance when disposed of by combustion. From the viewpoint of prevention of generation, it is desirable to use plastics consisting only of subatomic elements, hydrogen, and oxygen. The masking material of the present invention can be processed by vacuum forming a sheet of plastic film foam, by injection molding the plastic pellet, or by bead molding using expandable beads of plastic gauze. Manufactured to suit the shape and size of areas where surface treatment should not be applied. The plastic may be mixed with fillers such as calcium carbonate and clay.

[For production]

The masking material of the present invention is attached to a portion of the object to be treated where surface treatment is not to be performed, and covers and protects the portion from the surface treatment. If surface treatment is performed in this state, no surface treatment agent will be formed at the location. After the surface treatment, the masking material should be peeled off directly by hand without using a tool such as a knife or a knife, or if the masking material is made of thermoplastic plastic, it should be heated after the surface treatment. It softens and shrinks during processing and naturally detaches.

〔Effect of the invention〕

Therefore, the masking material of the present invention can be applied extremely easily depending on the shape and size of the part of the object to be treated where surface treatment is not to be performed, and even after surface treatment, it can be easily removed by hand dipping. It is easy to prepare, and even when heated to soften and shrink, the V masking material will not fuse to areas where the surface treatment should not be performed.

〔Example〕

A first embodiment of the present invention is shown in FIGS. 1a to 8.

αD is a board made of plastic foam, and is a board made of plastic foam.
Both sides of D have grooves (2
) is formed. The grooves may be formed only on one side. An adhesive layer is further formed on one side of the barrier plate αD, and a polyethylene film is placed on top of the adhesive layer.

Polypropylene film, release paper thickness T# type sheet a
◆ is covered. Thus, the masking material Ql of this example
) can be stacked, and is easy to transport and store because the adhesive layer opening side is covered with a releasable sheet.

As shown in FIG. 2, the masking material α0 of this embodiment has grooves in a size corresponding to the size of the portion (8) A of the flat plate V where the surface treatment of the object (8) should not be performed. , and peel off the releasable sheet α by hand, and adhere the armor portion (8) AK of the object to be processed (8) via the adhesive layer O. Then, surface treatment is performed by spraying a surface treatment agent onto the object to be treated (2) from, for example, a spray gun (8). After the surface treatment, before or after the heat treatment, the masking material αO is peeled off by piercing the masking material 00 with a hand hook (4) as shown in FIG. 8, for example. Alternatively, the masking material αQ can be directly peeled off by hand, and if the heating temperature is sufficiently higher than the softening point of the plastic forming the masking material αQ, the masking material O0 will shrink and peel off by itself.

FIG. 4 shows a second embodiment of the invention. In the figure, the masking material (1) consists of a rectangular box-shaped main body e2DA and an adhesive layer 1) B formed on the upper and lower surfaces of the main body. It is covered with moldable sheet QjiC.

The masking material (1) is the masking material αO of the first embodiment.
Similarly, it is used to protect a flat plate-shaped portion of an object to be processed, but the portion may be a hole. In this case, the inside of the hole is also protected by the masking material GW)K.

FIG. 6 shows an eighth embodiment of the present invention. In the masking material (to) of this example, the main body 01)A is in the shape of a cylindrical container, and the lower surface of the main body Cl1)A is covered with an adhesive layer. 3ηB is formed and covered with the adhesive layer 0ηBIfi releasable sheet H1)C.

The masking material (1) is No. 19i! Like the masking material (1) in the example, it is used to protect a flat plate-shaped part of the object to be processed, and a hole may be provided in the part.

A fourth embodiment of the invention is shown in FIGS. 6 and 7. In the figure, the masking material ■ consists of a square box-shaped main body (6) A, a flange OυB provided around the upper edge of the cedar main body G11) A, and an adhesive layer C formed on the lower surface of the main body (41) A. Become,
The adhesive layer θ])G is covered with a releasable sheet θ1)D.

The masking material (to) is also the masking material QO of the first embodiment.
It is applied to the flat plate-shaped portion (8)A of the object to be treated (8) in the same manner as above, but as shown in FIG. 7, the coating layer (5) of the surface treatment agent is ) is cut, the masking material (a) can be easily removed by hand fishing or by softening and shrinking the applied part without being hindered by the coating layer (5).

As shown in Figure 8, it is preferable to arrange a plurality of masking materials (1) vertically and horizontally and integrally vacuum-form the masking materials (1). A notch or groove @DE is provided on one or both sides of the portion H to make it easier to tear off the masking material shaft of the individual isthmus by hand.

The cut or groove (E) in the flange B may be integrally formed during vacuum forming of the masking material, or may be formed separately after vacuum forming.

FIG. 9 shows a fifth embodiment of the present invention, and in the figure, the masking members include a square box-shaped main body ■A, a flange (2) B provided around the upper edge of the main body 6DA, and a gauze flange. - The peripheral wall @C standing up from B and the adhesive layer 11 formed on the bottom surface of the main body (5DA)
The adhesive layer 6υD is covered with a releasable sheet ■E.

The masking material h1110 is also used in the same manner as the masking materials of the first and fourth embodiments, but the coating layer is coated by the peripheral wall c5]) C which stands up from the flange section (B) of the masking material. Cuts more completely than masking material.

FIG. 1O shows a sixth embodiment of the present invention. In the masking material of this embodiment, the main body 6ηA is shaped like a cylindrical container, and the flange part -A has a vertical wall enc on the upper edge of the main body 6A. An adhesive layer (D) is formed on the lower surface of the main body @A, and the adhesive shoulder (υD) is covered with a releasable sheet (IυEK).

In this embodiment, the coating layer is cut more completely by the vertical wall -◯ of the flange 11)B.

FIG. 11 shows the 75th jiii embodiment of the present invention, and the masking material of this embodiment has a square box-shaped main body (X) with a square box-shaped handle (C) D standing up from the bottom. A and an adhesive layer (C) B formed on the lower surface of the main body (iA), and the adhesive layer (C) B is covered with a releasable sheet (C) C.

The masking material I70 is used in the same manner as in the first and second embodiments, but since it has a handle (c) D, it is extremely easy to attach and detach.

FIG. 12 shows an eighth embodiment of the present invention. In the masking material 1) of this embodiment, the main body 1) A is in the shape of a cylindrical container, and the cylindrical handle 6→D extends from the bottom. An adhesive layer 61)B is formed on the lower surface of the main body @ηA, and the adhesive layer 61)B is covered with a releasable sheet @ηC.

The masking material @η is used in the same manner as in the eighth embodiment, but since it has a handle part @1)D, it is extremely easy to attach and detach.

FIG. 18 shows a ninth embodiment of the present invention, in which the masking material shaft is connected to a square box-shaped body ←IA with a square box-shaped handle e1) D standing up from the bottom, and to the upper edge of the body epA. It consists of a circumferential flange 01)E and an adhesive layer 11)B formed on the lower surface of the main body Q'OA, and the adhesive layer 01)B is covered with a releasable sheet 0ηC.

The remasking material shaft is used in the same way as in the fourth embodiment, but
Since it has a handle, it is extremely easy to attach and detach.

Figure 14 is the tenth example of the present invention! i! This shows an example, and the masking material (2) has a square box-shaped handle (lO
x) A square box-shaped main body (101) A with D standing up, and a flange (101) E provided around the upper edge of the main body (101) A.
and a peripheral wall (101) standing up from the flange (101) E.
F and the adhesive layer (101) formed on the bottom surface of the main body (10A).
) B, and the adhesive layer (101) B is covered with a release sheet (101) C.

The masking material (9) is used in the same manner as in the ninth embodiment,
Handle part (101) D makes it extremely easy to attach and detach9.
Furthermore, the peripheral wall (101) rising from the flange (101) E
FK allows the surface treatment agent to be used as a masking material during application (2)
Intrusion inside is prevented.

FIG. 16 shows an eleventh embodiment of the present invention, in which the masking material (110) extends from the bottom to the square box-shaped handle (11
1) A square box-shaped main body (111) with D standing up; A, the main body (111); a flange (111) E provided around the upper edge of A; and the flange (111); a vertical wall hanging from E ( l
ll)F and an adhesive layer Qu)B formed on the lower surface of the main body (111)A, and the adhesive layer (111)B is covered with a releasable sheet (111)C.

The acid masking material (110) u is used in the same manner as in the ninth embodiment, and the handle part (111) D makes it extremely easy to attach and detach.
11) F cuts the coating layer more completely.

Embodiment 12'J of the present invention is shown in FIGS. 16 and 17. In the figure, the masking material (12G) includes a rectangular container-shaped body (121) A, a flange (121) B formed on the outer periphery of the upper edge of the body (121) A, and a flange (121) B formed on the outer periphery of the upper edge of the body (121) A.
21) Consisting of an adhesive layer (121) C formed on the upper surface of B, the adhesive layer (121) C has a releasable sheet (
121) D is coated.

As shown in FIG. 17, the masking material (120) is removed from the releasable sheet (121) D to form the flange (121).
Adhesive layer on the top surface of B (121) Processed object (8) via C
Areas where surface treatment should not be applied (8) AK
Paste. After applying the surface treatment agent to form the coating layer (5), use a hand hook or the like to remove the diagnostic masking material (120).
Either remove it by piercing it, or let it soften and shrink under heat to allow it to peel off naturally. Note that a hole may be provided in the portion (8)A. Furthermore, the masking material of this example (12
0) adheres to the convex part (8) B on the surface of the object to be treated (8), as shown in Fig. 18.
9 May be protected.

In the manufacturing method of the masking material (120) of this embodiment, it is particularly desirable to arrange a plurality of masking materials (121) in a matrix and vacuum form them integrally as shown in FIG. 19. In this case, releasability v −) (1
21) D K cut (121) E f cut, and correspondingly, the flange part (121) of the masking material (121)
) Notches or grooves (121) F on one or both sides of B
is provided to make it easier to tear off each masking material (121) by hand. Flange part (121) B notch or groove (
121) It may be integrally formed during vacuum forming of the P masking material (121), or it may be formed separately after vacuum forming.

An eighteenth embodiment of the present invention is shown in FIGS. 20 and 21. In the figure, the masking material (18G) includes a cylindrical container-shaped main body (181) A, a flange (181) B formed on the outer periphery of the upper edge of the main body (181) A, and the outer periphery of the flange (181) B. A bent portion (181) formed in
E and the flange (181) The adhesive layer (1) formed on the top surface of B
81) Diagnostic adhesive layer Qat) consisting of C and l1l for C
An l-shaped sheet Ql)D is coated.

The masking material (18G) is a #-shaped sheet (181)
Peel off D to remove the flange (181) and the adhesive layer on the top surface of B (181).
) C, for example, to the part (3) A of the object to be treated (8) having the hole (8) C, and then as shown in FIG. ), but the coating layer (5) covers the flange (18G) of the masking material (18G).
181) Bent portion of H (181) Since it is cut by H, the masking material (181) can be easily removed by hand hook or heat softening shrinkage without being hindered by the coating layer (5).

Note that the part (8)A of the object to be treated (8) has a hole (8)C.
may not exist.

FIG. 22 shows a fourteenth embodiment of the present invention.

In the figure, the masking material (140) includes a rectangular container-shaped main body (141) A, a flange (141) B formed on the outer periphery of the upper edge of the main body (141) A, and the flange (141) B.
It consists of an adhesive layer (141) C formed on the top surface, and a handle (141) in the center of the KD main body (141) A.
E is formed. The adhesive layer (141) C is coated with a release sheet (141) D.

The masking material (140) is also used in the same way as the masking material (120) of the 12th embodiment, but the handle (141) E
It is extremely easy to attach and detach.

FIG. 28 shows a sixteenth embodiment of the present invention.

In the figure, the masking material (150) includes a cylindrical container-shaped main body (151) A, a fifc flange (151) B formed on the outer periphery of the upper edge of the main body (151) A, and further the flange (151) B.
51) A bent part (151) E formed on the outer periphery of B, and an adhesive layer (151) formed on the upper surface of the flange part (151) B.
) C, and a handle (151) F is formed in the center of the main body (151) A. The adhesive M (151) c is coated with a release sheet (151) D.

The masking material (151) is also used in the same manner as the masking material (180) of the 18th embodiment, but the handle (151) F
It is extremely easy to attach and detach.

A sixteenth embodiment of the present invention is shown in FIGS. 24 and 25. In the figure, the masking material (160) includes a rectangular container-shaped main body (161) A, an upper flange (161) B formed on the outer periphery of the upper edge of the main body (161) A, and a gauzy flange (161) 8 Peripheral wall portion (161) hanging from the periphery C
, a lower flange (161) D extended from the lower edge of the peripheral wall (xet) C, and an adhesive layer (161) E formed on the upper surface of the upper flange (161) B. (16
1) H is coated with a releasable sheet (161) F.

Similar to the masking material (120) of the twelfth embodiment, the masking material (160) also covers the flat portion (
8) Although it is applied to A, the coating layer (5) is completely cut off by the peripheral wall (161) C and the lower flange (161) D of the gauze masking material (16) as shown in Fig. 25. The removal of the masking material (160) is performed smoothly without being hindered by the coating layer (6).

FIG. 26 and FIG. 27 show 179! of the present invention! An example is shown. In the figure, the masking material (170) includes a cylindrical container-shaped main body Q71) A, an upper flange (171) B formed on the outer periphery of the upper edge of the main body (171) A, and an 8th periphery of the upper flange (171). Inner peripheral wall (171) hanging from
C, the gauze peripheral wall (171), the lower flange (171) extending from the lower edge of C, D, the lower flange (171), the outer peripheral wall (171) rising from the periphery of D, G and the upper flange (171), 171)
It consists of an adhesive layer (171) E formed on the upper surface of B, and a release sheet 1- (17
1) F is coated.

Similar to the masking material (180) of the 11th embodiment, this masking material (170) also covers the flat plate-shaped portion (
8) AK is applied, but as shown in Figure 27, the lower flange (
171) D and the outer peripheral wall (171) G
The coating layer (4) is cut more completely than in Example 8.

An eighteenth embodiment of the present invention is shown in FIGS. 28-80. The masking material (18G) of this example is a container-shaped body (
181) A, and a flange (181) B formed around the upper edge of the cedar body (181) A.

As shown in FIG. 29, the masking material (180) is inserted into the hole (8)B of the workpiece (8) through the main body (181), so that the inside of the hole visiting part (3)C is inserted. and the periphery of the hole (A) is further protected by the flange (181) B.

After inserting the acid masking material (18G) into the gauze hole (8)C, a surface treatment agent is applied to form a coating layer (
5), but the inside of the hole (8)C and the hole (8)C
The coating N(5) is not formed around it. The masking material (181) usually softens and shrinks during heat treatment of the coating layer (5) and naturally detaches as shown in FIG. 80, but it may of course be detached by piercing the masking material (181) with a fishing rod or the like.

A nineteenth embodiment of the present invention is shown in FIGS. 81 and 82. In this embodiment, the masking material Q90) consists of a container-shaped main body (191) A, and a flange part (191) B formed on the outer periphery slightly below the upper edge of the main body (191) A. In the masking material (19G) having such a structure, as shown in FIG.
The coating layer (5) formed by inserting the masking material (190) into C and applying a surface treatment agent is cut at the upper edge of the main body (191') A of the masking material (190). Therefore, the masking material (riso) smoothly leaves the hole (8)C without being hindered by the coating layer (5).

FIG. 88 shows a twentieth embodiment of the present invention.

The masking material (200) of this example is No. 18! l! Similar to the masking material (180) in the example, the container-shaped main body (201
) A, and a flange (201) B formed on the outer periphery of the upper edge of the main body (201) A.
The width of H is made smaller than that of the 18th embodiment. Such a small width flange (2(n)B) is simply for securing the masking material (20) to the hole (8)B, and the area around the hole (8)B is not treated. Used when there is no need for protection.

FIG. 84 shows a twenty-first embodiment of the present invention.

The masking material (210) of this example was applied from the bottom to the handle (210).
211) C is erected to form a six-container-shaped main body (211) A, and a crocodile portion (
211) Consists of B.

The masking material (21O) is used in the same manner as in the 18th embodiment, but since it has a handle (211)C, it can be attached to and removed from the hole extremely easily.

FIG. 85 shows a twenty-second embodiment of the present invention.

In this embodiment, the masking material (220) is a container-shaped body (221) A with a handle (221) C standing up from the bottom.
and a flange (221) B formed on the outer periphery slightly below the upper edge of the main body (221) A.

The masking material (220) is used in the same manner as in the second embodiment, but since it has a handle (221) C, it is extremely easy to attach and detach it from the hole.

FIG. 86 shows a twenty-eighth embodiment of the present invention.

The masking material (280) of this example is formed on a container-shaped body (281) A with a handle (281) C erected from the bottom and on the outer periphery of the upper edge of the body (2+11) A, as in the 21st example. However, the width of the flange (281) B is made smaller than that of the twenty-first embodiment.

The masking material (280) Fi is used in the same manner as in the 21st embodiment, but since it has a handle portion (231) Cf, it is extremely easy to attach and remove it from the hole.

A twenty-fourth embodiment of the present invention is shown in FIGS. 87 and 88. The masking material (240) of this embodiment includes a cylindrical container-shaped body (241) A, a flange (241) B formed on the upper edge of the body (241) A, and the flange (241).
It consists of a rising portion (241) C that stands up from the outer periphery of B.

The masking material (240) is applied to the hole (8) C of the object (8) through the main body (241) A, as in the 18th embodiment.
However, the coating layer (5) is cut by the rising portion (241) C standing up from the outer periphery of the flange portion (241) B as shown in FIG.
240) will be smoothly disengaged.

FIG. 89 shows the 25th! of the present invention! A Ni example is shown.

In the figure, the masking material (250) consists of a rectangular container-shaped body (251) A, a flange (251) B formed on the outer periphery of the upper edge of the body (251) A, and a body (25
1) A convex portion (251) C is integrally formed inside A.

The masking material (250) is inserted into the convex portion (3) B on the surface of the object to be treated (8) in the same way as shown in FIG.
Due to the elasticity of the convex portion (251) C formed in the convex portion (251)
8) Closely fixed to C.

FIG. 40 shows a twenty-sixth embodiment of the present invention.

Masking H (260) of this embodiment includes a cross-shaped container-shaped body (261) A, a flange (261) B formed on the upper edge of the cedar body (261) A, and the outer periphery of the flange (261) B. It consists of a peripheral wall part (261) C which is erected from.

The remasking material (260) is used in the same way as in the 24th embodiment, but since the main body (261) A is a cross cane, the main body (261)
61) Since the outer periphery of A only partially contacts the inner wall of the hole, it is extremely easy to detach due to the additional softening and contraction stop;
Moreover, compared to a cylindrical container, material is saved.

FIG. 41 shows a twenty-seventh embodiment of the present invention.

The masking material (2TO) of this example consists of a container-shaped main body (271) A divided into two parts by a handle part (271) C formed in the center, and a flange formed on the upper edge of the main body (271) A. Part (271) Consists of B. The masking material (270) of this example is used in the same way as the 21st example, but since the main body (271) A is divided into two parts by the handle part (271) C, vacuum forming is particularly easy, and the main body (271) is !71) Since the outer periphery of A only partially contacts the inner wall of the hole, detachment is extremely easy.

FIG. 42 shows a twenty-eighth embodiment of the present invention.

The masking material (280) of this embodiment is formed on a container-shaped main body (281) A divided into four quarters by a cross-shaped handle part (281) C, and on the upper edge of the main body (281) A. It consists of a flange (281) B and is used in the same way as the 26th embodiment, but because the main body (281) A is divided into quarters by the handle part (281) C, the main body (281) 281) The contact area of the outer periphery of A with the inner wall of the hole becomes smaller, making detachment easier.

FIG. 48 shows a twenty-ninth embodiment of the present invention.

The masking material (290) of this embodiment includes a cross-shaped container-shaped main body (291) A, an upper flange (291) B formed on the upper edge of the main body (291) A, and a sand upper flange (291).
8. A peripheral wall portion (291) C hanging from the peripheral edge, and a lower flange portion (291) extending from the lower edge of the peripheral wall portion (291) C.
A lower flange portion (291) D extended from the peripheral wall (291) C is used in the same manner as in the twenty-fifth embodiment.
Therefore, the coated layer of the surface treatment agent is cut more completely and removal is performed more smoothly.

An 80th embodiment of the present invention is shown in FIGS. 44 and 45. The masking material (800) of this embodiment includes a container-shaped main body (801) A, an upper flange (801) B formed on the upper edge of the main body (301) A, and the upper flange (801).
8. A peripheral wall portion (801) C hanging from the peripheral edge, and a lower flange portion (801) extending from the lower edge of the peripheral wall portion (801) C.
D, the main body (801), a handle part (801) protruding from the center of the bottom surface of A, E, the β main body (801), a lip (8
01) F and (801)G, and is used in the same manner as in the 21st embodiment, but as shown in FIG. is the peripheral wall part (801). The lower tsuba f16 (
801) D, the removal of the masking material (800) from the hole (8)C is therefore even more complete. In addition, the masking material (80G) is reinforced by the lips (801) F and (801) G of the bottom surface of the main body (801) A and the upper flange (801) B, so even if it is made of brittle polystyrene foam, for example. Hard to destroy.

Embodiment 81'ji' of the present invention is shown in FIGS. 46 and 47. The masking material (810) of this example is a cylindrical container-shaped body (
881) A, and a flange (881) B formed on the upper edge of the V body (2181) A. The masking material (
881) is inserted into the hole (8) C of the object to be treated (8) as shown in FIG. 46 in the same way as in the 18th embodiment, but the vertical lip (811) is the hole (
8) Since it is elastically pressed against the inner wall of C, it will not fall off before or during surface treatment due to hyperactivity, etc., and the masking material (811) is reinforced by V vertical rig (all) C.

An 82nd embodiment of the present invention is shown in FIGS. 48 and 49. The masking material (820) of this example is formed with a vertical lip (821) C1 on the outer periphery and a handle portion (821) from the bottom surface.
21) A cylindrical container-shaped main body (821) A with a protrusion D, and a flange (821) formed on the upper edge of the main body (821) A.
) B, and the masking material (821) is the 81st! i
! As in the embodiment, as shown in FIG. 49, it is inserted into the hole (8)C of the object to be processed (3), but the handle (821) DI
The masking material (820) can be easily attached and detached. Even in the masking jf;4 (820) of this embodiment, the vertical lip (821) C reinforces the masking material (820) as in the 81st embodiment and prevents it from falling off during surface treatment or the like.

The 88th embodiment of the present invention will be shown in the 50th session.

The masking material (880) of this example has a vertical rig (880) on the outer periphery.
81) Cylindrical container body (881) A formed with E;
The upper tsuba @ (881) formed on the upper edge of the main body (881) A
) B, a peripheral wall part (881) C hanging from the upper flange part (881) 8, and a lower flange part (881) D extending from the lower seam of the peripheral wall part (881) C, with a thickness of 8G%. Although it is used in the same manner as in the example, since the coating layer of the surface treatment agent is completely cut by the lower flange part (881) D extended from the lower edge of the peripheral wall part (881) C, the gauze masking material (881) is
80) is smoothly removed from the hole. Even if the masking material (88G) of this example has a vertical lip (88G),
1) C is the 81st. As in the 82nd embodiment, the masking material (880) is reinforced and prevented from falling off during surface treatment or the like.

An 84th embodiment of the present invention is shown in FIGS. 61 and 52. The masking material (840) of this embodiment consists of a cylindrical block (841) A, and a circular hole-shaped protected part insertion recess (841) B is provided in the axial direction. The insertion port (841) B has a tapered shape in which the diameter gradually increases outward near the entrance. The masking material of this example (
As shown in FIG. 52, the protected portion (8γA of the rod-shaped object to be treated (8r) is inserted into the insertion recess (841) B of the object to be treated (840), and then the object to be treated (8γ is subjected to surface treatment). Protected area (8)' A masking material (840
) and cannot be processed.

An 85th embodiment of the present invention is shown in FIGS. 58 and 54. The masking material (850) of this embodiment consists of a plate-shaped block (851) A, and four slit-shaped protected portion insertion portions (851) B are formed.

Insertion recess (851) for masking material (85G) of this example
) B plate-shaped object to be treated (8r' protected part (8)'
/A is inserted, and the object to be treated (8'f/) is then subjected to surface treatment.

FIG. 56 shows an 86th embodiment of the present invention.

The masking material (86G) of this example consists of a cylindrical block (861) A, and a circular through hole (861) B for covering the protected portion is formed in the axial direction. The masking material (86G) of this example is used in the same manner as in the 84th example, but it can be used by penetrating the rod-shaped object to be processed.

FIG. 66 shows an 871st embodiment of the present invention.

The masking material (870) of this example is a plate-shaped block (
8T1) A, a slit-shaped protected portion covering through hole (871) B is formed, and the through hole (an)
The outer end of B is a tapered part where the width gradually increases toward the outside @L)
It is C. The masking material (87G) of this example is used in the same manner as in the 86th example.

FIG. 57 shows the 88th dormitory embodiment of the present invention.

The masking material (880) of this example is a cylindrical container-shaped body (
881) A, and a fitting groove (881) B provided from the open end of the main body (881) A. The masking material (880) of this example is also used in the same manner as the 85th example.

FIG. 58 shows an 89th embodiment of the present invention.

The masking material (890) of this example is a square box-shaped body (89
t) A and a fitting groove (891) B provided from the open end of the main body (891) A, and is used in the same manner as the 85th embodiment.

[Brief explanation of the drawing]

1 to 8 show a first embodiment of the present invention, FIG. 1 is a perspective view, FIG. 2 is a perspective view in a masked state, FIG. 8 is a perspective view in a peeled state, and FIG. 4 is a perspective view in a peeled state. 251i is a perspective view of the embodiment, FIG. 5 is a perspective view of the eighth embodiment, and FIGS. 6 to 8 are 45j! 6 is a perspective view, FIG. 7 is a sectional view of the masked state, FIG. 8 is a perspective view of the case of integral vacuum forming, FIG. 9 is a perspective view of the fifth dormitory example, and FIG. Figure 10 is the 6th
A perspective view of the projecting embodiment, FIG. 11 is a perspective view of the seventh embodiment, and FIG.
Figure 2 is number 8! l! The perspective view of the example, Figure 18, is the 9th! Jl
A perspective view of the embodiment; FIG. 14 is a perspective view of the tenth embodiment;
Figure 5 is a perspective view of the 11th dormitory embodiment, Figures 16 to 19 are the 12th dormitory embodiment, Figure 16 is a perspective view, Figure 17 is a cross-sectional view of the masking state, and Figure 18 is another example. 20 and 21 show the 18th embodiment, FIG. 20 is a perspective view, and FIG. Masking bark sectional view, Figure 22 is 149th! 28 is a perspective view of the 16th embodiment, FIGS. 24 and 25 show the 16th embodiment, FIG. 24 is a perspective view, and FIG. 25 is a sectional view of the masking state, Figures 26 and 27 are 17th! iI! Examples are shown;
FIG. 26 is a perspective view, FIG. 27 is a cross-sectional view of the masked state,
Figures 28 to 80 are 1g5j! 28 is a perspective view, FIG. 29 is a cross-sectional view in a masking state, FIG. 80 is a diagram in which the masking material is removed, and FIGS. 81 and 82 show the 19th projecting embodiment. Figure 81 is a perspective view;
Figure 2 is a masking state diagram, Figure 88 is Figure 205j! FIG. 84 is a perspective view of the twenty-first embodiment, FIG. 85 is a perspective view of the twenty-second embodiment, FIG. 86 is a perspective view of the twenty-eighth embodiment, FIG. 87, and FIG. 38 are perspective views of the twenty-eighth embodiment. The 24th example is shown, and the 8th example is
Figure 7 is a perspective view, Figure 88 is a sectional view of the masked state, Figure 8
The ninth factor is a cross-sectional view of the twenty-fifth embodiment, FIG. 40 is a perspective view of the twenty-sixth embodiment, FIG. 41 is a perspective view of the twenty-seventh embodiment, FIG. 42 is a perspective view of the twenty-eighth embodiment, and FIG. FIG. 44 is a perspective view of the 29th dormitory example. 45 shows the 80th embodiment, FIG. 44 is a perspective view, FIG. 46 is a sectional view in a masked state, and FIG. FIG. 47 shows the 81st embodiment, FIG. 46 is a perspective view, FIG. 47 is a sectional view in a masked state, and FIG. 48 is a diagram. Fig. 49 shows the 82nd embodiment, Fig. 48 is a perspective view, Fig. 49 is a sectional view of the masking state, Fig. 50 is a perspective view of the 88th embodiment, and Figs. 51 and 52 are the 84th embodiment. Fig. 61 is a side sectional view, Fig. 52 is a perspective view in a masked state, Fig. 58 and Fig. 54 show the 85th embodiment, Fig. 5a is a perspective view, and Fig. 54 The figure is a plan view of the masked chest, and Figure 56 is 86sj! A perspective view of the example;
FIG. 56 is a perspective view of the 87th embodiment. In the figure, QO, 翰, Ol, 輼 1wheel 6 phrases, (to), ■, (a). (b), (no), (x2o), (xao), (14
o), (lso), Qso), (t7o). (180), (190), (200), (210)
, (220), (280), (240), (25
G). (so), (270), (280), (29
o), (goo), (ato), (820)
, (sso). (i940), (850), (860), (
870) ... Masking material patent applicant Nagoya Yuka Co., Ltd. O 3 Fig. O 4 Fig. 5 Fig. 16 Fig. O 8 Fig. O 10 Fig. O 11 Fig. 12 Fig. O 13 Fig. O 14 Fig. P 22 Fig. A 23 Fig. O 26 Note 727 Fig. 34 Fig. 35 Fig. 38 Fig. O 39 Fig. 51C 56 Figure 7 57 Zuyoshi 58 Figure 91B Procedural amendments phantom February 26, 1988 Director General of the Patent Office Kunio Ogawa 1, Indication of the case 1988 Patent Application No. 303975 2, Name of the invention Masking material 3 , Relationship with the case of the person making the amendment Patent Applicant Address: 213 Ho-nowari, Minami-Shibata-cho, Tokai-shi, Aichi Prefecture Name: Nagoya Yuka Co., Ltd. Representative Director: Seinosuke Horiki 4, Agent: 467 Address: Tsukimigaoka, Yatomi-cho, Mizuho-ku, Nagoya City 32 address 7, correction target 8, correction content 1, page 31, line 4, "...is a perspective view of the 37th embodiment." is corrected as follows. "...A perspective view of the 37th embodiment, FIG. 57 is a perspective view of the 38th embodiment, FIG. 58 is a perspective view of the 39th embodiment,
The figure is a perspective view of a conventional example. "that's all

Claims (1)

[Claims] Masking material made from plastic