JPH089488Y2 - Packing material for combustion appliances - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packing material used for combustion equipment (fuel is gas, petroleum, etc.) such as boilers, hot water heaters and heaters.

[0002]

2. Description of the Related Art There are the following packing materials for conventional burning appliances. (1) A packing material in which glass wool made of long glass fibers is needle-punched into a felt-like mat (hereinafter referred to as glass wool mat), and an adhesive layer and release paper are attached to the back side of the mat. Generally, when an adhesive layer and a release paper are attached, a phenomenon in which the glass fibers are separated into two layers when the release paper is peeled off (hereinafter referred to as delamination) is likely to occur. Since they are entangled in the thickness direction, this delamination can be prevented to some extent.

(2) A packing material in which long fibers or short fibers of inorganic fibers such as glass fibers, ceramic fibers and rock fibers are formed into a thin plate by a papermaking method. The "papermaking method" is a method in which inorganic fibers are dispersed in a liquid together with a binder, the inorganic fibers are scooped up to make paper, and this is dried to bond the inorganic fibers with a binder.

[0004]

[Problems to be solved by the invention] However, even in the packing material described in (1) above, delamination is prevented because the binding force due to the entanglement of glass fibers may be small or the glass fibers may break during needle punching. It was still insufficient to do so. Further, if a large amount of adhesive is attached for the purpose of preventing delamination, the adhesive penetrates into the glass fiber and the shape is difficult to restore when compressed in the manufacturing process or the like. Also, if a large amount of a binder such as phenol resin is used for the same purpose to strengthen the adhesive force between the glass fibers,
Since the binder burns up when heated, it becomes unsuitable as a packing material for combustion appliances that require fire resistance.

If a general glass fiber having a fiber diameter of about 7 to 13 μm is used, the porosity at the time of compression is large and there is a risk of gas leakage. Therefore, if glass fibers of long fibers having a fiber diameter of 5 μm or less are used, the porosity becomes small, but this time it becomes difficult to make cotton or sliver.

Next, the packing material of the above (2) has a small porosity, so that gas leakage due to the voids is small, but since the movement of the inorganic fibers is restricted by the binder, it has a brittle property. Further, since the inorganic fibers are arranged mainly in the direction parallel to the surface and are not entangled so much in the thickness direction, they are particularly weak against pulling in the thickness direction, and even if an adhesive layer and release paper are attached to the surface of the packing material. When the release paper is peeled off, the inorganic fibers are delaminated. In addition, since this packing material is flat and hard as a whole, if there is a recess or a gap in the mounting location, it cannot enter the gap for sufficient sealing.

Therefore, the present applicant has previously made a glass fiber cotton-like material and an organic fiber nonwoven fabric by superimposing them at the same time by needle punching, and further applying a pressure-sensitive adhesive to the surface of the cotton-like material or the nonwoven fabric. I applied for a packing material for a combustion appliance in which release paper was applied to the adhesive (Practical application No. 2-97832).
In this packing material, since the organic fibers of the nonwoven fabric and the glass fibers of the cotton-like material are entangled in the thickness direction by simultaneous needle punching, the binding force in the same direction is strengthened, so when releasing the release paper Delamination of glass fibers is prevented. Moreover, it is highly flexible, and the sealing property of the mounting location is improved.

However, in the packing material of the previous application, the non-woven fabric made of organic fibers or the end portion of the fiber bonding portion is exposed on the front side. Therefore, for example, when the back side of the packing material is attached to the main body of the combustion appliance and the front side is brought into contact with the lid of the combustion appliance and used, when the entire combustion appliance is heated, The organic fiber at the end (for example, the melting point of polyester fiber is 260 ° C.) is thermally fused to the lid,
Eventually, both sides of the packing material will be attached to the combustion equipment. Therefore, when the lid is removed from the main body for inspection of the burner, the packing material is torn, and the packing material cannot be continuously used.

The object of the present invention is to solve the above-mentioned problems, and when the release paper is peeled off, the glass fibers do not cause delamination, and can be attached according to various shapes of the attachment place of the combustion appliance. Not only can it enter into the dents and gaps that exist in the place for a good seal, but the front side does not adhere to the combustion instrument, so it does not tear when disassembling the combustion instrument for inspection, etc. It is to provide a packing material for a combustion appliance that can be continuously used.

[0010]

In order to achieve the above object, a packing material for a combustion appliance according to claim 1 is a glass fiber cotton-like body made of glass fiber, and front and back sides of the glass fiber cotton-like body. Alternatively, a heat-insulating seal layer is formed from a non-woven fabric made of organic fibers layered inside each other, and a fiber-bonding part formed by the intertwining of the glass fibers of the glass fiber cotton and the non-woven fabric of the non-woven fabric by simultaneous needle punching. Is
On the front side of the heat-insulating seal layer, aluminum foil, stainless steel foil, and ceramic foil, which have low adhesiveness to the mounting location of the combustion appliance, are attached.
Select from Mick sheet, glass cloth or glass fiber cotton
The heat-insulating sealing layer is provided with an adhesive layer on the back side thereof, and release paper is applied to the adhesive layer.

Here, aluminum forming the "separation layer"
Foil, stainless steel foil, ceramic sheet, glass black
Both glass and glass fiber cotton are melted by the heat from the combustion appliances.
Adheres to the mounting location so that it does not burn or carbonize
It is a material that is difficult to do. Further, the "back side" refers to the side to be brought into contact with the attachment location of the combustion appliance in the state of being attached, and the "front side" is the side to be brought into contact with in the state of not being attached.

The glass fibers of "glass fiber cotton" are preferably short fibers (glass wool). This is because if short fibers are used, cotton can be made and sized even if the fiber diameter is small. Therefore, the average fiber diameter is preferably 1 to 5 μm. If the fiber diameter is less than 1 μm, the strength per glass fiber is weak and the elasticity is lost.
This is because if the thickness exceeds μm, the fibers become hard and may irritate the operator's skin to cause itchiness, and when compressed, the porosity is large and gas leakage increases. Further, the density of the glass fiber is preferably 10 kg / m ³ or more. This is because if the density is less than 10 kg / m ³ , the restoring property when compressed becomes poor, and it may not be possible to sufficiently seal.

As the organic fiber of the "nonwoven fabric", polyester fiber can be exemplified. The weight of the non-woven fabric is preferably 10 to 100 g / m ² . This weight is 1
If it is less than 0 g / m ² , the strength of the fiber is weak and 100 g / m ²
If it exceeds, the resistance of the fiber becomes large and the needle punching process becomes difficult. Also, as the "adhesive layer",
The thing formed by apply | coating an acrylic type or polyester type adhesive can be illustrated.

Next, the packing material for a combustion appliance according to claim 2 is a glass fiber cotton-like body made of glass fibers, and a layered layer on the front side, back side or inside of the glass fiber cotton-like body .
Carbon fiber that has low adhesion to the installation location of combustion equipment
A few selected from fiber, ceramic fiber or alumina fiber
A heat-insulating seal layer is formed from at least one kind of non-woven fabric as a main component, and a fiber-bonding part formed by entanglement of the glass fiber cotton-like glass fiber and non-woven fabric inorganic fiber by simultaneous needle punching. Then, an adhesive layer is provided on the back side of the heat-insulating seal layer, and release paper is applied to the adhesive layer.

[0015]

According to the packing material for a combustion device according to the first aspect, the organic fibers of the non-woven fabric enter the glass fiber cotton-like material and are entangled with the glass fibers in the thickness direction at the fiber connecting portion. Since the organic fibers of this non-woven fabric are less likely to break or break when entangled by needle punching than glass fibers, the binding force in the thickness direction increases more than when only glass fibers are needle punched, and It becomes strong in tension. Therefore, when peeling the release paper from the adhesive layer provided on the surface of the glass fiber cotton or nonwoven fabric, the glass fibers of the glass fiber cotton do not delaminate due to the force.

Further, since the movement of the glass fiber is only slightly restrained at the fiber connecting portion entwined with the organic fiber, it can be flexibly deformed and attached according to various shapes of the attachment portion of the combustion appliance. Further, due to the restoring property of the thickness after the attachment, it is possible to sufficiently enter into the recesses and the gaps existing in the attached portion for sufficient sealing.

Further, the separation layer provided on the front side of the heat insulating seal layer is not melted or carbonized by the heat from the combustion instrument. Therefore, for example, when the back side of the packing material provided with the adhesive layer is attached to the body of the combustion appliance and the front side is brought into contact with the lid of the combustion appliance for use, the entire combustion appliance is heated and Even if the non-woven fabric or the organic fiber at the end of the fiber-bonded portion is melted by heat, the separation layer does not adhere to the lid. Therefore, when the lid is removed from the main body for inspection or the like, the separation layer is easily separated from the lid, so that the packing material does not tear.

Next, in the packing material for a combustion appliance according to a second aspect, the inorganic fibers of the non-woven fabric enter the glass fiber cotton-like material and are entangled in the thickness direction at the fiber connecting portion. Although the nonwoven fabric or the end of the fiber-bonded portion is exposed on the front side, the inorganic fibers of the nonwoven fabric are not melted by the heat from the combustion instrument. Therefore, even in the case similar to the above, the front side of the packing material does not adhere to the lid body even if the above-mentioned special separation layer is not provided. Therefore, when removing the lid from the main body, the packing material does not tear.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment embodying the present invention will be described below with reference to FIGS. The packing material 1 of this example has an average fiber diameter of 3 μm and a density of 19 kg / m.
Glass fiber cotton-like material 2 made of glass fiber ³ and weight 30 g / layered on the back side of the glass fiber cotton-like material 2
a non-woven fabric 3 made of 100% of m ² polyester fiber,
It includes a heat-insulating sealing layer 5 formed from a fiber-bonding portion 4 formed by intertwining the glass fiber of the glass fiber cotton 2 and the polyester fiber of the non-woven fabric 3 by simultaneous needle punching from the non-woven fabric 3 side. This simultaneous needle punching process is performed by stacking the non-woven fabric 3 on the glass fiber cotton-like body 2 and driving a hooked needle from the non-woven fabric 3 side.

The heat insulating seal layer 5 has a thickness of 50 μm on the front side.
A separation layer 6 made of aluminum foil of m is attached by a polyester adhesive 7. An adhesive layer 8 formed by applying an acrylic adhesive is provided on the back side of the heat insulating seal layer 5, and a release paper 9 is applied to the adhesive layer 8.

According to the packing material 1 of the present embodiment, the polyester fibers of the non-woven fabric 3 enter the glass fiber cotton-like material 2 and are entangled with the glass fibers in the thickness direction in the fiber bonding portion 4. At this time, since the polyester fibers of the non-woven fabric 3 are less likely to be broken or cut when entangled by needle punching than glass fibers, the bonding force in the thickness direction is increased as compared with the case where only glass fibers are needle punched. It is strong against pulling in the same direction. Therefore, when the release paper 9 is peeled from the adhesive layer 8 attached to the lower surface of the heat insulating seal layer 5, the glass fibers of the glass fiber cotton-like body 2 are not delaminated by the force.

Further, since the movement of the glass fiber is only slightly restrained at the fiber connecting portion 4 which is entangled with the polyester fiber, the combustion appliance 10 can be flexibly deformed and attached in accordance with various shapes of the attachment portion. You can Further, since the glass fiber cotton-like material 2 has a good thickness restoring property after attachment, even if there is a dent or a gap in the attachment location, for example, the glass fiber cotton-like material 2 enters the depression or the gap to sufficiently seal the attachment location. To do.

Then, the packing material 1 of the present embodiment is applied to the main body 11 and the lid 12 of the combustion instrument 10 as shown in FIG. 2, for example.
It is supposed to be installed between and. In this case, the backing paper 9
The adhesive layer 8 peeled off is adhered to the main body 11 on the higher temperature side, the front side is brought into contact with the lid 12, and the main body 11 and the lid 12 are tightened with the bolts 13 and the nuts 14. Now,
Since the heat from the main body 11 is blocked by the glass fiber cotton-like material 2, it is difficult to be transmitted to the nonwoven fabric 3 on the back side. However, since the lid 12 is also heated by radiant heat, hot air, etc., the polyester fiber of the front side non-woven fabric 3 may be melted by heat.
However, since the separation layer 6 cannot be melted unless the temperature is higher (the melting point of the aluminum foil is about 660 ° C.), the front side does not adhere to the lid 12. Therefore, when the lid 12 is removed from the main body 11 for inspection or the like, the separation layer 6 is easily separated from the lid 12, so that the packing material 1 does not tear and can be continuously used thereafter.

Next, in the packing material 21 of the combustion instrument of the second embodiment shown in FIG. 3, the nonwoven fabric 3 is provided only on the back side of the heat insulating seal layer 22, and the surface of the heat insulating seal layer 22 is made of a stainless steel foil and separated. It differs from the first embodiment only in that the layer 23 is provided. According to this packing material 21, even if the polyester fibers of the non-woven fabric 3 at the front end of the fiber binding portion 4 are melted by heat, the separation layer 23 is not melted or carbonized, and therefore does not adhere to the combustion equipment. .
In addition, it is preferable that the packing material 21 of the present embodiment protects the nonwoven fabric 3 by bringing its front side into contact with the higher temperature side of the combustion appliance.

Next, in the packing material 31 of the third embodiment shown in FIG. 4, the nonwoven fabric 3 is sandwiched between two glass fiber cotton-like bodies 2 and the simultaneous needles are applied from both sides of the glass fiber cotton-like body 2. It differs from the first embodiment only in that the heat insulating seal layer 32 is formed by punching. In this packing material 31, even if both sides of the installation location of the combustion appliance become hot, the heat is blocked by the glass fiber cotton bodies 2 on both sides and is difficult to be transmitted to the nonwoven fabric 3 inside. The nonwoven fabric 3 is more difficult to melt than in the first embodiment.

Next, the packing material 41 of the fourth embodiment shown in FIGS. 5 to 7 is the first one in that it uses glass fiber cotton with a thickness of about 15 mm without needle punching as the separation layer 42. Different from the embodiment. For convenience of description, the back side of the packing material 41 is shown at the top and the front side is shown at the bottom in FIG.

An example of using the packing material 41 of this embodiment will be described with reference to FIGS. 6 and 7. Three pairs of protrusions 43 are provided on the joint surface of the main body 11 of the combustion appliance, which is the attachment point, and air pipes 44 are sandwiched between these protrusions 43. A ring-shaped packing material 41 is stacked on the main body 11 with the separation layer 42 side facing downward, and the lid 12 is further stacked and tightened with bolts 13. At this time, as shown in FIG. 7, the protrusions 43 and the protrusions of the air pipe 44 are absorbed by the thick separation layer 42, and the main body 11 and the lid 12 are sealed without any gap. Further, when the lid 12 is removed from the main body 11 for inspection or the like, the separation layer 42
Since it is easily separated from the main body 11, the packing material 41 does not tear and can be continuously used thereafter.

Next, in the packing material 51 of the fifth embodiment shown in FIG. 8, the non-woven fabric 52 of the heat-insulating sealing layer 53 is made of carbon fiber instead of polyester fiber instead of providing the separation layer as in each of the above-mentioned embodiments. It differs from the first embodiment only in that The non-woven fabric 52 is not limited to the front side of the heat insulating seal layer 53, but may be provided on the back side or inside.

This packing material 51 is the same as the fiber connecting portion 5 described above.
In 4, the carbon fibers of the non-woven fabric 52 enter the glass fiber cotton-like material 2 and are entangled in the thickness direction.
Although the non-woven fabric 52 is exposed on the front side, the carbon fibers of the non-woven fabric 52 are not melted by the heat from the combustion instrument 10.
Therefore, for example, the main body 1 of the combustion appliance 10 as shown in FIG.
In the case where the packing material 51 is attached between the lid 1 and the lid 12, the packing material 5 can be provided without providing a special separation layer.
The front side of 1 does not adhere to the lid 12. Therefore, when removing the lid 12 from the main body 11, the packing material 51 does not tear and can be continuously used thereafter.

The present invention is not limited to the structure of the above-mentioned embodiment, and for example, a non-woven fabric is coated with or impregnated with a fixing agent.
The invention can be embodied by being arbitrarily modified within the scope of the invention. Examples of the fixing agent include various resins such as vinyl chloride resin, vinyl acetate resin and silicone resin, various rubbers such as natural rubber, silicone rubber and chloroprene rubber, and starch. This fixing agent can prevent deformation of the packing material of the combustion instrument during cutting and fray of the nonwoven fabric.

[0031]

[Effect of the Invention] Since the packing material of the combustion appliance of the present invention is configured as described above, the glass fiber does not cause delamination when the release paper is peeled off, and various shapes can be formed at the attachment position of the combustion appliance. It can be attached together, and not only can it fit into the recesses and gaps existing in the mounting location to provide a good seal, but the front side does not stick to the combustion instrument, so when disassembling the combustion instrument for inspection etc. It has an excellent effect that it does not tear and can be used continuously after that.

[Brief description of drawings]

FIG. 1 is an enlarged sectional view showing a packing material of a first embodiment embodying the present invention.

FIG. 2 is an enlarged cross-sectional view showing a usage state of the same.

FIG. 3 is an enlarged sectional view showing a packing material of a second embodiment.

FIG. 4 is an enlarged sectional view showing a packing material of a third embodiment.

FIG. 5 is an enlarged sectional view showing a packing material of a fourth embodiment.

FIG. 6 is an exploded perspective view showing a mounting method of the same.

FIG. 7 is an enlarged cross-sectional view showing a mounting state of the same.

FIG. 8 is an enlarged sectional view showing a packing material of a fifth embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Packing material 2 Glass fiber cotton-like body 3 Nonwoven fabric 4 Fiber bonding part 5 Heat insulation seal layer 6 Separation layer 8 Adhesive layer 9 Release paper 10 Combustion equipment 21 Packing material 22 Heat insulation seal layer 23 Separation layer 31 Packing material 32 Heat insulation seal layer 41 Packing Material 42 Separation Layer 51 Packing Material 52 Nonwoven Fabric 53 Heat Insulation Seal Layer 54 Fiber Bonding Part

Claims (2)

[Scope of utility model registration request] 1. A glass fiber cotton-like body made of glass fibers, a nonwoven fabric made of organic fibers layered on the front side, back side or inside of the glass fiber cotton-like body, and glass fibers of the glass fiber cotton-like body. And a non-woven fabric organic fiber are entangled by simultaneous needle punching to form a heat-insulating seal layer, and an aluminum foil having low adhesiveness to a mounting location of a combustion appliance is formed on the front side of the heat-insulating seal layer , Stainless steel foil, ceramic
Select from Mick sheet, glass cloth or glass fiber cotton
A packing material for a combustion appliance, comprising a separation layer made of at least one of the above , an adhesive layer provided on the back side of the heat-insulating sealing layer, and release paper applied to the adhesive layer. 2. A glass fiber cotton-like body made of glass fibers, and a layer of layered layers on the front side, the back side or the inside of the glass fiber cotton-like body, which has a low adhesiveness to a mounting position of a combustion appliance.
Carbon fiber, ceramic fiber or alumina fiber
A heat-insulating seal layer is formed from a non-woven fabric containing at least one inorganic fiber as a main component, and a fiber-bonding part formed by the intertwining of the glass fiber cotton-like glass fiber and the non-woven fabric inorganic fiber by simultaneous needle punching. A packing material for a combustion appliance, wherein an adhesive layer is provided on the back side of the heat insulating seal layer, and release paper is applied to the adhesive layer.