CN1524627A

CN1524627A - Shadowing material

Info

Publication number: CN1524627A
Application number: CNA2003101131721A
Authority: CN
Inventors: 小川正则; 矩; 伊藤邦矩
Original assignee: Nagoya Oil Chemical Co Ltd
Current assignee: Nagoya Oil Chemical Co Ltd
Priority date: 2002-12-26
Filing date: 2003-12-25
Publication date: 2004-09-01
Also published as: JP2004202985A; TW200418577A; TWI228435B

Abstract

The present invention has a task to reduce the treatment of waste of masking materials and the air pollution or global warming caused by incineration of masking materials, so as to secure a sufficient mechanical strength of the masking material and reducing the usage of thermoplastic resin materials. The invention provides a masking material (1) made of a thermoplastic resin foam with foaming rate of 10 to 80 times and comprising a hole (3) inserted with a protruding masked part (2), a depression or a trench. The thickness T between the periphery of masking material and the hole (3), depression or trench is set at 5 to 30 mm.

Description

Masking material

Technical field

The present invention relates to a kind of masking material with hole portion, recess or the slot part at chimeric crested position.

Background technology

In the past, as Fig. 9～shown in Figure 11, be the masking material 1P of material as foaming body with the thermoplastic resin of polystyrene etc., generally provide a kind of masking material (with reference to patent documentation 1) with the 3P of hole portion, recess or slot part of chimeric crested position 2P.

Patent documentation 1

The real clear 62-156376 communique (the 3rd page～the 5th page, Fig. 3, Fig. 4) of opening of Japan Patent

But, in above-mentioned masking material 1P in the past, as the foaming body of the thermoplastic resin of the material of masking material 1P, its hear resistance is low, because the heating when masking material 1P uses, masking material 1P just has significantly and is out of shape, shrinks, so it is just very difficult to re-use masking material 1P.For this reason, used masking material 1P once, can not re-use and can only to make discarded situation about handling much.And when masking material 1P was done discarded the processing, because of nearly all being burns processing, therefore, the gas of being discharged when burning processing had the problem of one of reason of becoming atmosphere pollution or global warming.

The content of invention

As the method that addresses the above problem usefulness, the present invention provides a kind of masking material 1, this masking material 1 is that the thermoplastic resin foam with 10～80 times of expansion ratios is a material, and be masking material 1, be set in 5～30mm from the thickness T of outer thoughtful this hole portion 3, this recess 13 or this slot part 23 of this masking material 1 with hole portion 3, recess 13 or the slot part 23 at chimeric convex crested position 2.

Interior week of this hole portion 3, this recess 13 or this slot part 23 to be provided with many root 4 for the most desirable.

Effect

In masking material 1 of the present invention, by the thickness T from the periphery of this masking material 1 to hole portion 3, recess 13 or slot part 23 is set in 5～30mm, just can guarantee enough mechanical strengths, simultaneously also can seek reducing of unnecessary thermoplastic resin material, also just can cut down the treating capacity of masking material 1 discarded object thus.

The simple declaration of accompanying drawing

Fig. 1 is the stereogram of masking material.

Fig. 2 is the explanation longitudinal section of masking material.

Fig. 3 is the explanation side cross-sectional view of masking material.

Fig. 4 is the stereogram of the masking material of other embodiment.

Fig. 5 is the explanation side cross-sectional view of the masking material of other embodiment.

Fig. 6 is the stereogram of the masking material of another other embodiment.

Fig. 7 is the explanation longitudinal section of the masking material of another other embodiment.

Fig. 8 is the explanation side cross-sectional view of the masking material of another other embodiment.

Fig. 9 is the stereogram of masking material of example in the past.

Figure 10 is the explanation longitudinal section of masking material of example in the past.

Figure 11 is the explanation side cross-sectional view of masking material of example in the past.

The explanation of symbol

1,11,21 masking materials; 2,12,22 crested positions; 3, hole portion

13, recess; 23, slot part; 4,14,24 ribs; T thickness

The specific embodiment of invention

Embodiment 1

According to Fig. 1～embodiment shown in Figure 3 the present invention is described.

With the thermoplastic resin foam is the masking material 1 of material, is to form the drum with the hole portion 3 that is used for chimeric cylindric crested position 2, at the outstanding rib 4 (with reference to Fig. 1) that is provided with many columns of the interior week of this hole portion 3.

Thickness T from the periphery of this masking material 1 to this hole portion 3 is set in 5～30mm (with reference to Fig. 2 and Fig. 3), and, the diameter D of this hole portion 3 is configured to slightly be equal to or slightly greater than the diameter d at crested position 2, have again, width W between rib 4 and the rib 4 is configured to the diameter d less than crested position 2, set the diameter d that slightly is equal to or slightly greater than crested position 2 for by diameter D like this with this hole portion 3, and the width W between rib 4 and the rib 4 is configured to the diameter d less than crested position 2, thus when masking material 1 is plugged in crested position 2, when can not interfering and easily masking material 1 being plugged in crested position 2, thereby the strain of this rib 4 can be fixed in masking material 1 securely.

Material as this masking material 1, though be to use polypropylene (PP), polyethylene (PE), polystyrene (PS), polyvinyl chloride (PVC), the foaming body of the thermoplastic resin of acrylonitrile-butadiene-styrene resin (ABS resin) etc., but from the cheap aspect of material, the foamed polystyrene body is optimal material.

And, the expansion ratio of this thermoplastic resin foam be 10～80 times, more satisfactory be 20～70 times, be desirably 30～65 times most.

When using this masking material 1 to implement the surface treatment of application etc., earlier at the hole of masking material 13 chimeric crested positions 2, again masking materials 1 are installed at crested position 2 after, implement the surface treatment of application etc.Then, after the surface treatment of application etc. is finished, unload this masking material 1 from crested position 2.

By using masking material 1 to implement the surface treatment of application etc., just can prevent from crested position 2 is executed and surface treatment like this.

As mentioned above,, just enough mechanical strengths can be guaranteed, also reducing of unnecessary thermoplastic resin material can be sought simultaneously by being set at 5～30mm from the thickness T of outer thoughtful this hole portion 3 of this masking material 1.Also just can cut down the treating capacity of masking material 1 discarded object thus.

From the thickness T of outer thoughtful this hole portion 3 of masking material 1 is during less than 5mm, and because of the mechanical strength deficiency of masking material 1, masking material 1 is with regard to subject to damage, on the other hand, is that material is reduced effect and just diminished when surpassing 30mm from the thickness T of outer thoughtful this hole portion 3 of masking material 1.

And 10～80 times in this way of the expansion ratios of thermoplastic resin foam are because of obtaining the elasticity of appropriateness, so that the dismounting of masking material 1 also just becomes is easy.

At the expansion ratio of thermoplastic resin foam is during less than 10 times, because of the elasticity deficiency, crested position 2 just is difficult for being embedded in the masking material 1, on the other hand, the expansion ratio of thermoplastic resin foam is as above 80 times, because of obtaining excessive elasticity, so masking material 1 just comes off from crested position 2 easily.

Have again, the hole of masking material 1 one 3 in Zhou Yidan be provided with rib 4, because of these rib 4 easy strains,, just can strengthen the bed knife of masking material 1 for crested position 2 so this rib 4 just is close on the periphery wall at crested position 2.

Embodiment 2

Other embodiment of expression in Fig. 4 and Fig. 5.

With respect to Fig. 1～embodiment 1 shown in Figure 3, in the present embodiment, with the thermoplastic resin foam is the masking material 11 of material, has the cylindric recess 13 that is used for chimeric cylindric crested position 12, at the rib of being equipped with many columns interior week 14 (with reference to Fig. 4) of this recess 13.

Thickness T from outer thoughtful this recess 13 of this masking material 11, same with the 1st embodiment, be set at 5～30mm (with reference to Fig. 5), and, the diameter D of this recess 13 sets the diameter d that slightly is equal to or slightly greater than crested position 12 for, have again, width W between rib 14 and the rib 14 is configured to the diameter d less than crested position 12, set the diameter d that slightly is equal to or slightly greater than crested position 12 for by diameter D like this with this recess 13, and set the width W between rib 14 and the rib 14 for diameter d less than crested position 12, when masking material 11 is plugged in crested position 12, can not interfere and easily in the 12 plug-in mounting masking materials 11 of crested position, thereby rib 14 strains can be securely fixed on the masking material 11.

For the material of this masking material 11, be to use the foaming body with the same thermoplastic resin of embodiment 1, the expansion ratio of the foaming body of this thermoplastic resin also is decided to be the expansion ratio same with embodiment 1.

Even use the masking material 11 of present embodiment, also can obtain the action effect same with the 1st embodiment.

That is to say, by being set at 5～30mm from the thickness T of outer thoughtful this recess 13 of this masking material 11, just can guarantee enough mechanical strengths, also can seek reducing of unnecessary thermoplastic resin material simultaneously, also just can cut down the treating capacity of masking material 11 discarded objects thus.

And because of the expansion ratio of thermoplastic resin foam is 10～80 times, so just can obtain the elasticity of appropriateness, it is easy that the dismounting of masking material 11 also just becomes.

Have again, the recess of masking material 11 13 in Zhou Yin be provided with rib 14, so thereby just be close on the periphery wall at crested position 12 through these rib 14 strains, just can strengthen the bed knife of masking material 11 for crested position 12.

Embodiment 3

Another other embodiment of expression in Fig. 6～Fig. 8.

With respect to Fig. 1～embodiment 3 shown in Figure 3, in the present embodiment, with the thermoplastic resin foam is the masking material 21 of material, has the slot part 23 that is used for chimeric tabular crested position 22, at the outstanding rib 24 (with reference to Fig. 6) that is provided with many columns of interior all sidewalls of this slot part 23.

Thickness T from the outer peripheral sidewall of this masking material 21 to this slot part 23, same with the 1st embodiment, be set at 5～30mm with reference to (Fig. 7 and Fig. 8), and, the width W 1 of this slot part 23 is configured to slightly be equal to or slightly greater than the width w at crested position 22, have again, width W between rib 24 and the rib 24 is configured to the width w less than crested position 22, like this by the width W 1 of this slot part 23 being set for the width w that slightly is equal to or slightly greater than crested position 22, and the width W between rib 24 and the rib 24 is set the width w less than crested position 22 for, thus when being plugged in masking material 21 on the crested position 22, do not interfering and easily in the 22 plug-in mounting masking materials 21 of crested position, thereby rib 24 strains can firmly fix on masking material 21.

For the material of this masking material 21, be to use the foaming body with the same thermoplastic resin of embodiment 1, the expansion ratio of the foaming body of this thermoplastic resin also is decided to be the expansion ratio same with the 1st embodiment.

Even use the masking material 21 of present embodiment, also can obtain the action effect same with the 1st embodiment.

That is to say, by the thickness T from the outer peripheral sidewall of this masking material 21 to interior all sidewalls of this slot part 23 is set at 5～30mm, just can guarantee enough mechanical strengths, simultaneously also can seek reducing of unnecessary thermoplastic resin material, also just can cut down the treating capacity of masking material 21 discarded objects thus.

And because of the expansion ratio of thermoplastic resin foam is 10～80 times, so just can obtain the elasticity of appropriateness, it is easy that the dismounting of masking material 21 also just becomes.

Have again, in the slot part 23 of masking material 21 on all sidewalls because of being provided with rib 24, so, just be close on the periphery wall at crested position 22, just can strengthen the bed knife of masking material 21 for crested position 22 through these rib 24 strains.

More than, though by embodiment embodiments of the present invention have been described, scope of the present invention is not limited thereto, and also may change, be out of shape according to purpose in the described scope of claim.

Among the present invention, when can guaranteeing enough mechanical strengths of masking material,, burn atmosphere pollution or global warming when handling so just can cut down treating capacity, the mitigation of masking material discarded object because of seeking reducing of unnecessary thermoplastic resin material.

Claims

1. masking material, it is characterized in that, this masking material is a material with the thermoplastic resin foam of 10～80 times of expansion ratios, and be the masking material with hole portion, recess or the slot part at chimeric convex crested position, the thickness setting from the periphery of this masking material to this hole portion, this recess or this slot part is 5～30mm.

2. masking material as claimed in claim 1 is characterized in that, at many roots that are provided with in interior week of this hole portion, this recess or this slot part.