JP2007191918A - Sheet dedicated to asbestos isolation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet dedicated to asbestos isolation, which is for use in isolating a place where asbestos removal work is carried out, and facilitates overlapping work. <P>SOLUTION: The sheet 10 dedicated to asbestos isolation is characterized by having a longitudinally extending line 12 marked thereon, for identifying a width of about 300 to 450 mm. Therefore the width of the sheet dedicated to asbestos isolation falls in the range of 2,120 to 2,270 mm that is equal to one Ken (1,820 mm) plus about 300 to 450 mm. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an asbestos isolation sheet used for isolating a place where asbestos removal work is performed.

  Asbestos (asbestos) is a general term for naturally occurring fibrous minerals, but in a broad sense it is called asbestos, including products such as building materials and friction materials obtained by processing the minerals. Asbestos is considered a harmful substance when humans inhale asbestos fibers that are likely to float in the air, because the crystalline structure is needle-like and is not easily discharged, and it accumulates in the lungs, such as lung cancer and mesothelioma. This is because it has been pointed out that it causes respiratory diseases.

  In this way, asbestos is a substance that has been pointed out to be harmful, and building materials containing asbestos have already been banned from being manufactured and used, but in the past they have been used in large quantities as building materials. It was. Specifically, it is used as a fireproof covering material on buildings by spraying it on the wall surface, etc., and is also used as a heat insulating material or a lightweight building material on walls, ceilings, floors, air conditioning equipment and the like. For this reason, it is expected that a large amount of waste containing asbestos will be discharged in the future with the increase in construction such as demolition and reconstruction due to aging of the building, and workers engaged in the treatment of waste containing asbestos It is becoming necessary to take measures to prevent health problems.

  For example, the Ministry of Health, Labor and Welfare established the “Asbestos Disorder Prevention Regulations” based on the “Occupational Safety and Health Law” as a measure against asbestos in work such as the dismantling of buildings from the viewpoint of preventing health hazards for related workers. It is effective from July 1st. In addition, the Ministry of the Environment, in order to preserve the living environment by appropriately handling waste containing asbestos, "deconstruction or renovation of buildings" based on the "law on waste disposal and cleaning" "Guidelines for proper disposal of waste containing asbestos generated in Japan" (partially revised in 2005).

  Various measures against asbestos based on these various laws and regulations have been taken, but asbestos is expected to increase dramatically in the future, such as the dismantling of buildings, prevent asbestos from being scattered outside the work area during asbestos removal work. Specific measures for this are becoming particularly important.

  For example, according to the “Manual for Preventing Exposure to Asbestos Dust in the Demolition of Buildings” (hereinafter simply referred to as “Manual”) prepared by the Association for the Prevention of Industrial Accidents in the Construction Industry, remove asbestos from buildings. Work places where work is performed are required to be isolated from other places.

  For the isolation of the work place (construction section), a method using a sheet (plastic sheet, vinyl sheet) is generally used, and it is necessary to use one having sufficient strength for preventing breakage. Specifically, the thickness of the sheet is required to be 0.08 mm or more when used on a wall surface and 0.15 mm or more when used on a floor surface.

  1a to 1i are diagrams showing an example of a wall surface and floor surface isolation enforcement method based on a manual.

  (A) The floor is covered to the end with a sheet having a thickness of 0.15 mm, folded back 300 mm along the wall, and stopped with a crosspiece (FIG. 1 a).

  (B) Stop on the other wall in the same way so that there are pockets in the corners (FIG. 1b).

  (C) Flatten the pocket and press against one wall with tape. All such bag portions are flattened and secured to the wall to prevent dust accumulation (FIG. 1c).

  (D) Next, a sheet (0.08 mm) is lowered to the wall, and is fixed to the floor with tape. As a result, a sheet overlap portion having a width of 300 mm from the floor surface is formed at the joint portion between the floor sheet and the wall surface sheet (FIG. 1d).

  (E) A concrete or lightweight block wall surface is sprayed with an adhesive material to reinforce the tape stopper of the sheet (FIG. 1e).

  (F) If a carpet stop bar is used, a reinforcing force is given to a certain kind of wall building material (FIG. 1f).

  (G) When taped to the sheet, at a distance of 5 cm from the ceiling, the sheet is vertically stopped every 1.2 m to 1.5 m (Fig. 1g).

  (H) Fix the sheet horizontally with tape. At that time, it is piled up on a stop bar (FIG. 1h).

(I) The seam portion of the sheet on the wall surface is overlapped 300mm to 450mm vertically and a stop bar is attached on it (Fig. 1i)
As shown in the isolation method described above, the joint portion of the sheet covering the work place needs to be overlapped by about 300 mm to 450 mm. This is to completely prevent the asbestos from leaking from the seam portion and scattering.

  FIG. 2 is a table for explaining the work level of the asbestos removal work. According to FIG. 2, the work level is classified into three stages according to the degree of dust generation, and the asbestos-containing spraying material removal work is classified into level 1 with the largest amount of dust generation. In the work corresponding to level 1 or level 2 where the amount of dust generation is large, when the work place is isolated by the above-described method, it is necessary to double-paste the floor with a sheet. This is because the amount of dust generation is remarkably large, so that the floor sheet is damaged due to the walking movement of the worker during the work and the asbestos dust is prevented from leaking to the floor surface.

  As described above, in the asbestos removal work, it is necessary to strictly isolate the place where the asbestos removal work is performed from a place other than the work place by using the sheet so that the asbestos dust is never leaked from the work place.

  However, the above-described isolation method for isolating the place where asbestos removal work is performed with a sheet is very time-consuming and time-consuming and is not efficient. Specifically, the sheet is prepared in a state of being wound in a roll shape, for example, and the operator sticks the sheet along the floor surface and the wall surface while unwinding the roll. Then, at the joint portion, the overlapping width (about 300 mm to 450 mm) is measured with a scale, and the sheets are sequentially pasted so as to overlap the overlapping width. Workers must measure the overlay width each time they overlap, and the task of measuring the overlap width is very laborious for the worker in a dimly lit work space where many workers work. Work. In addition, asbestos removal work needs to be performed in the shortest possible construction period, and it is not efficient to spend a lot of time for the isolation work that is the preparation work.

  Conventionally, since the sheet is a plain and transparent sheet, it is difficult to distinguish between single-ply and double-ply when the sheet is double-plyed, and whether double-ply was performed in a dimly lit work space. There is also a problem that it is difficult to confirm.

  Accordingly, an object of the present invention is to provide a sheet for asbestos isolation, which is a sheet for isolating a place where asbestos removal work is performed, and which can be easily overlapped.

  Another object of the present invention is to provide a sheet for asbestos isolation, which is a sheet for isolating a place where asbestos removal work is performed, and which can be easily applied and confirmed for double sticking.

  The asbestos isolation sheet of the present invention for achieving the above object is an asbestos isolation sheet used for isolating a place where asbestos removal work is performed, and has a width wider than about 300 mm to 450 mm, about 300 mm to A line extending in the longitudinal direction for identifying a width of 450 mm is provided.

  The width | variety of the asbestos isolation sheet | seat of this invention has the width | variety of about 2120 mm-2270 mm which added about 300 mm-450 mm to the space | interval width, for example.

  In order to achieve the above object, the present invention provides a first asbestos isolation sheet used to isolate a place where asbestos removal work is performed and a second asbestos isolation sheet attached to the second asbestos isolation sheet. Providing a combination of asbestos isolation sheets composed of asbestos isolation sheets, wherein the first and second asbestos isolation sheets are each provided with a line identifying a width of about 300 mm to 450 mm, The isolation sheet is opaque or translucent.

  Further, in the combination of the asbestos isolation sheets of the present invention comprising the first and second asbestos isolation sheets, the first and second asbestos isolation sheets have lines for identifying a width of about 300 mm to 450 mm, respectively. The line color attached to the first asbestos isolation sheet is different from the color of the line applied to the second asbestos isolation sheet. In this case, the second asbestos isolation sheet may be opaque or translucent, or may be transparent.

  Further, the first and second asbestos isolation sheets in the combination of asbestos isolation sheets have a width of about 2120 mm to 2270 mm obtained by adding about 300 mm to 450 mm to the width between each.

  According to the present invention, it is possible to easily, accurately and quickly perform the isolation work in the asbestos removal work.

  Embodiments of the present invention will be described below with reference to the drawings. However, such an embodiment does not limit the technical scope of the present invention.

  FIG. 3 is a diagram showing a first asbestos isolation sheet in the embodiment of the present invention. The sheet body 11 of the first asbestos isolation sheet 10 is a transparent plastic sheet having a thickness of 0.08 to 0.15 mm. The length in the width direction is about 2120 to 2270 mm, and the length in the longitudinal direction is several tens of meters. The length in the longitudinal direction is not limited. As shown in FIG. 3 (b), for example, it is provided in a roll state wound around a mandrel, and the operator cuts out a necessary length according to the length of the floor surface or the wall surface to the floor surface or the wall surface. paste.

  The length in the width direction is preferably a length obtained by adding an overlap width of about 300 mm to 450 mm at the joint portion to a width of about one (about 1820 mm). As described in the background art above, the first asbestos isolation sheet 10 needs to overlap the sheets with a width of about 300 mm to 450 mm at the joint portion. As shown in FIG. 3, the first asbestos isolation sheet 10 has a line indicating the overlap width in the longitudinal direction in order to eliminate the need for the operator to measure the overlap width with a scale or the like. 12 is attached. The color of the line 12 is, for example, black, but is not limited thereto.

  In the asbestos removal work place covered with the first asbestos isolation sheet 10, many workers work in a dim space. In such a work environment, each time the sheet seam is overlapped, the overlap width is measured with a scale, and the overlapping process is extremely laborious and requires a lot of time. . In the first asbestos isolation sheet of the present invention, the line 12 serving as a mark of the overlap width is attached on the sheet main body 11, so that the operator does not measure the overlap width on the line 12. Since it is only necessary to attach the end portions of the next sheet together, the sheet attaching operation (separation operation) can be performed accurately, easily, and quickly without making a mistake in the overlapping width. Moreover, since the time for the isolation work can be greatly shortened, the work time for the entire asbestos removal work can be shortened.

  Further, by adding a length of about 300 mm to 450 mm in the overlap width between the intervals (about 1820 mm), the width direction length of each sheet after the overlap becomes one interval (about 1820 mm). Normally, the internal dimensions of the building are in units, and the length of the floor and wall is also in units, so by pasting the sheets on the floor and wall while overlapping with the overlapping width, The sheet can be attached with the sheet width direction length exactly matching the floor and wall length without leaving the sheet width direction length, eliminating unnecessary work such as unnecessary folding. Can do.

  The length in the width direction does not necessarily have to be a length obtained by adding the overlap width of about 300 mm to 450 mm at the joint portion to the one-time (about 1820 mm) width described above, and may be an arbitrary length. However, the first asbestos isolation sheet 10 of the present invention needs to be wider than the overlap width of about 300 mm to 450 mm in order to attach the line 12 indicating the overlap width extending in the longitudinal direction.

  FIG. 4 is a diagram showing a second asbestos isolation sheet in the embodiment of the present invention. The second asbestos isolation sheet 20 has substantially the same structure and dimensions as the first asbestos isolation sheet, and a line 22 for identifying the overlap width of about 300 mm to 450 mm is formed on the sheet body 21. Although provided, the color of the sheet body 21 or the line 22 (used in the present specification to include transparency) is configured to be different from those of the first asbestos isolation sheet.

  The second asbestos isolation sheet 20 is used as a sheet for the second layer when two layers of sheets are required for isolation work. The above-mentioned first asbestos isolation sheet 10 is used as the sheet for the first layer when the two-layer bonding is performed. If the first asbestos isolation sheet 10 is used for both the first and second layers when two layers are applied, the following inconvenience occurs.

  Since the first asbestos isolation sheet is a transparent sheet, if the first asbestos isolation sheet 10 is further pasted on the first asbestos isolation sheet 10, the first asbestos used in the first layer is used. Both the line 12 of the isolation sheet 10 and the line 12 of the first asbestos isolation sheet 10 used in the second layer can be seen, and the second layer of the asbestos isolation sheet is dedicated to the first layer of asbestos isolation. In the case where it is not possible to paste the sheet so as to be exactly overlapped on the sheet (when it is slightly shifted), it is difficult for the operator to distinguish which line is the second layer. In particular, in a dim work space, it is difficult to distinguish the first layer line from the second layer line. Therefore, if an operator mistakenly attaches the second-layer asbestos isolation sheet to the first-layer line, the overlapped portion with the required width (about 300 mm to 450 mm) cannot be obtained. Can happen.

  In order to eliminate the inconvenience, the second asbestos isolation sheet 20 is provided as an asbestos isolation sheet dedicated to the second layer, and has the same dimensions and materials as the first asbestos isolation sheet. The color of the sheet body 21 is not transparent, but is opaque or translucent such as milky white so that the line of the first layer sheet cannot be seen through. In this case, the color of the line 22 may be the same as the color of the line 12 of the first asbestos isolation sheet 10. Of course, different colors may be used.

  When the second asbestos isolation sheet 20 is pasted as a second layer sheet by making the color of the second asbestos isolation sheet 20 transparent, the line 12 of the first layer sheet is not visible. The operator can paste the second asbestos isolation sheet 20 while being surely overlapped with the line 22 of the second asbestos isolation sheet 20. It is possible to prevent the occurrence of mistakes such as overlapping with the first layer line 12.

  The color of the line 22 of the second asbestos isolation sheet 20 may be different from the color of the line 12 of the first asbestos isolation sheet. For example, the color of the line 12 of the first asbestos isolation sheet 10 is black, and the color of the line 22 of the second asbestos isolation sheet 20 is red. In this case, the sheet body 21 of the second asbestos isolation sheet 20 may be transparent, opaque, or translucent.

  By changing the color of the line, the operator can easily distinguish the first layer line from the second layer line, and in the same way as when the color of the sheet body is different, When attaching, it is possible to prevent the occurrence of a mistake that the sheets are overlapped in line with the first layer line.

  Note that the sheet body 11 of the first asbestos isolation sheet 10 is not transparent but may be opaque or translucent. However, the first asbestos isolation sheet 10 is always used for both one-layer and two-layer application, that is, it is used for all surfaces to be isolated. It is preferable that it is transparent (including colored transparency) so that the presence or absence of the presence or absence can be visually recognized.

  In this way, by using the second asbestos isolation sheet, which is different from the first asbestos isolation sheet and the color of the sheet body or line, as the second layer of the two layers, the overlapping of the sheets in the second layer application The alignment can be performed easily and accurately, and it can be easily confirmed that the two-layer bonding has been performed.

It is a figure which shows the example of the isolation enforcement method of a wall surface and a floor surface. It is a figure which shows the example of the isolation enforcement method of a wall surface and a floor surface. It is a figure which shows the example of the isolation enforcement method of a wall surface and a floor surface. It is a figure which shows the example of the isolation enforcement method of a wall surface and a floor surface. It is a figure which shows the example of the isolation enforcement method of a wall surface and a floor surface. It is a figure which shows the example of the isolation enforcement method of a wall surface and a floor surface. It is a figure which shows the example of the isolation enforcement method of a wall surface and a floor surface. It is a figure which shows the example of the isolation enforcement method of a wall surface and a floor surface. It is a figure which shows the example of the isolation enforcement method of a wall surface and a floor surface. It is a table | surface explaining the work level of asbestos removal work. It is a figure which shows the 1st asbestos isolation sheet | seat only in embodiment of this invention. It is a figure which shows the 2nd sheet for asbestos isolation in embodiment of this invention.

Explanation of symbols

  10: first asbestos isolation sheet, 11: first asbestos isolation sheet body, 12: first asbestos isolation sheet line, 20: second asbestos isolation sheet, 21: second asbestos isolation sheet Asbestos isolation sheet main body, 22: Second asbestos isolation sheet line

Claims (7)

Asbestos isolation sheet used to isolate the place where asbestos removal work is performed,
An asbestos isolation sheet having a width wider than about 300 mm to 450 mm, and a line extending in the longitudinal direction for identifying a width of about 300 mm to 450 mm. In claim 1,
An asbestos isolation sheet characterized by having a width of about 2120 mm to 2270 mm, which is obtained by adding about 300 mm to 450 mm to the width of the gap. The first asbestos isolation sheet used to isolate the place where asbestos removal work is performed,
It consists of a second asbestos isolation sheet affixed on the first asbestos isolation sheet,
Each of the first and second asbestos isolation sheets is provided with a line for identifying a width of about 300 mm to 450 mm,
The asbestos isolation sheet is characterized in that the second asbestos isolation sheet is opaque or translucent. A first asbestos isolation sheet and a second asbestos isolation sheet used to isolate the place where the asbestos removal operation is performed;
It consists of a second asbestos isolation sheet affixed on the first asbestos isolation sheet,
Each of the first and second asbestos isolation sheets is provided with a line for identifying a width of about 300 mm to 450 mm,
A combination of asbestos isolation sheets, wherein the color of the line attached to the first asbestos isolation sheet and the color of the line applied to the second asbestos isolation sheet are different. In claim 4,
The asbestos isolation sheet is characterized in that the second asbestos isolation sheet is opaque or translucent. In claim 4,
The combination of asbestos isolation sheets, wherein the second asbestos isolation sheet is transparent. In any one of Claims 3 thru | or 6.
Each of the first and second asbestos isolation sheets has a width of about 2120 mm to 2270 mm obtained by adding about 300 mm to 450 mm to the width between the first and second asbestos isolation sheets.

Images