JPH083086B2 - Method for manufacturing packing material for combustion appliance - Google Patents

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Conventionally, as a packing material of this kind, a glass wool mat formed by needle punching glass wool has been known. Since fluffing of glass fiber is a problem in this packing material, it is general that various synthetic resins are applied to the surface by rollers or the like to prevent the fluffing. For example, Jitsuhei Hei 1-222288, Jitsuhei Hei
No. 2-97832 and My Application No. 2-97831
The black film has a needle punched needle marker.
A packing material obtained by impregnating a silicone resin with the resin is shown.

[0003]

However, the packing material has the following problems. Conventional synthetic resins such as silicone resin are volatile and ignitable.
For highly organic and harmful organic solvents (toluene, xylene, etc.)
Since the dissolved type is the mainstream, it dries quickly after application
On the other hand, it is necessary to carefully perform the coating work and the drying work.
It was And the water-dispersed emulsion as in the present invention is
It was not developed.

Silicon resin, etc. dissolved in an organic solvent
The synthetic resin contains a component that is chemically decomposed by an organic solvent.
Because it was not possible to
It is useful because it can exhibit properties such as water repellency and flame retardancy.
In many cases, it is not possible to mix the ingredients, and the degree of freedom in composition design is low
won.

Silicon resin, etc. dissolved in an organic solvent
When the synthetic resin is applied to the surface of the packing material, its
Even if the surface part is impregnated, it is difficult to impregnate the inside.
Not, the entire interior in Japanese (to the back) that completely impregnated
I couldn't find it at all. Because of this, glass fiber from the surface
Fluff is suppressed, but glass fiber hair from the cut end
I couldn't control the wings and the scattering.

Therefore, this packing material is used as a combustion instrument.
If you use it, the water inside the burner will condense and drip.
From the cut end of the packing material
Because of this, the metal part of the combustion appliance that comes in contact with this packing material
Was easy to corrode. Like the microfilm above
Even if a silicone resin with high water repellency is applied,
This problem is preventable as long as it does not impregnate the entire interior.
Didn't come

An object of the present invention is to solve the above problems and to carry out an impregnation work and a drying work for adhering a silicone resin or a polytetrafluoroethylene resin (hereinafter referred to as PTFE resin) to the entire inside of the needle mat. Since there is no risk of causing a fire or damaging the health of workers, these works can be performed safely and safely, and even components that are chemically decomposed by an organic solvent can be blended. For example, useful components that can exhibit properties such as water repellency and flame retardancy by thermal decomposition can be blended, and the degree of freedom in blending design can be increased. Since silicone resin or PTFE resin can be attached, it is possible to suppress fluffing and scattering of artificial inorganic fibers from the cut as well as the surface, And to provide a method of manufacturing can also novel combustion appliances for packing material to prevent corrosion of the cut-off to burner moisture intrusion from cut. It
In addition, the action that strongly holds the glass fiber comrades together and the acrylic type
Acrylic adhesive that also has the effect of strengthening the adhesive force of the adhesive
By dispersing the Lima in the emulsion,
Reduce the amount of expensive silicone resin or PTFE resin used
At the same time, it is easy to attach release paper with acrylic adhesive
To provide a method of manufacturing packing material for combustion appliances
To serve.

[0008]

In order to achieve the above object, in the method of manufacturing a packing material for a combustion appliance according to the present invention, colloidal particles of silicone resin or PTFE resin and acrylic primer are added to water. Dispersion creates an aqueous dispersion emulsion that is not ignitable or harmful by volatilization, and impregnates the emulsion inside the entire needle mat formed by needle punching a cotton-like body mainly composed of glass fibers. After that, by evaporating the water content of the emulsion impregnated in the needle mat, the silicone resin or PT
FE resin and is adhered an acrylic primer, the knee
Stick a release paper with an acrylic adhesive on the surface of the Dormat
I wore it (Claim 1).

Further, by dispersing colloidal particles of silicone resin or colloidal particles of PTFE resin and an acrylic primer in water, an aqueous dispersion type emulsion which is neither ignitable by volatilization nor harmful is produced. , A needle mat with a non-woven fabric after impregnating the emulsion into the entire inside of a needle mat with a non-woven fabric formed by stacking a cotton-like material mainly containing glass fiber and a non-woven fabric mainly containing an organic fiber and simultaneously performing needle punching By evaporating the water content of the emulsion impregnated into the silicone resin, the silicone resin or PTFE resin and the acryl
Lyl-based primer is attached to the surface of the needle mat.
A release paper with an acrylic adhesive was attached to the surface (claim 2).

In the above two manufacturing methods, it is preferable to add an inorganic flame retardant substantially free of phosphorus, chlorine and sulfur to the emulsion (claim 3).

Further, the emulsion is stored in a dipping tank and
Do not continuously feed the idle mat with the roller feeder.
By immersing it in a glass emulsion,
Emulsion can be impregnated throughout
(Claim 4). In this case, each part of the needle mat is immersed in the emulsion.
20 to 100 seconds is appropriate for the working time (claim
Item 5). Further, the water content of the emulsion impregnated in the needle mat can be heated to evaporate (claim 6).

In the present invention, the "cottony body" is mainly composed of glass fibers, and ceramic fibers, rock wool fibers, quartz fibers, slag cotton fibers and the like can be added thereto. The thickness of the needle mat before the emulsion is impregnated is not limited to a specific range, but is 1 to 20 in the natural state before attachment.
mm is common. This is because if it is less than 1 mm, the shape stability is deteriorated, and if it exceeds 20 mm, the handleability and the mounting workability are deteriorated.

The "nonwoven fabric" is mainly composed of organic fibers,
Examples of the organic fiber include polyester fiber, polyamide fiber, PVA fiber and the like. The weight per unit area of the nonwoven fabric before the emulsion impregnation is not limited to a specific range, but is preferably 5 to 200 g / m ² . If it is less than 5 g / m ² , the shape stability will be reduced to 200 g.
This is because even if it exceeds / m ² , there is a problem in nonflammability. The non-woven fabric can be laminated on one side, both sides or the inside of the cotton-like body.

Examples of the "inorganic flame retardant" include mica, silicon oxide, aluminum hydroxide, antimony oxide sol and the like.

"Acrylic primer" was selected.
As described later, the same as the glass fiber of the needle mat.
This is because it has the effect of strongly holding the will.

[0016]

The manufacturing method of the present invention according to claim 1 or 2 has the following effects. A water-dispersed emulsion prepared by dispersing colloidal particles of silicone resin or colloidal particles of PTFE resin and acrylic primer in water is not ignitable or harmful due to volatilization. It is possible to safely and safely perform these operations without causing a fire or impairing the health of the operator during the operations.

The above water-dispersed emulsion is
No organic solvent is used, and it is chemically decomposed by an organic solvent.
Even if the ingredients are
By decomposing, it can exhibit properties such as water repellency and flame retardancy.
It is possible to mix useful components such as
Can be turned on.

Further, unlike the case of applying a silicone resin dissolved in a conventional organic solvent, the use of the above water-dispersed emulsion makes it possible for the first time to impregnate the entire inside of the needle mat with the emulsion. Silicon resin or PTFE between the surfaces of all the glass fibers that make up the needle mat
Since the resin can be attached, it is possible to suppress the fluffing and scattering of the glass fiber not only from the surface of the packing material but also from the cut. In addition, the shape stability is improved, and peeling inside the packing material is less likely to occur. In addition, the emulsion contains acrylic primer.
Acrylic on the entire needle mat.
A system primer can be attached. This acrylic
Strongly pull the glass fiber comrades of the needle mat on the primer.
Silicon resin or PTFE resin because it has a stopping action
At the same time, it prevents the fluff and scattering of the glass fiber. Therefore,
By compounding this acrylic primer, generally
Reduce the amount of expensive silicone resin or PTFE resin used
be able to. Also, silicone resin or PTFE resin is a general adhesive
The present invention acts so as to prevent the adhesion of the agent.
According to, the acrylic primer blended in the emulsion
But needle mixed with silicone resin or PTFE resin
Since it will also be present on the mat surface, the needle map
Even if you don't apply new primer to the
Adhesive strength of the adhesive becomes stronger, and peeling with the acrylic adhesive
It becomes possible to attach release paper. Thus, Emaru
By dispersing the acrylic primer in John
As a result, the effects and effects of two birds with one stone are created. Then peel off the release paper and apply the acrylic adhesive.
It is easy to temporarily fix the packing material to the burner.
I can.

[0019]  Also, use this packing material for combustion appliances.
When used, the moisture that has condensed and dropped on the inner surface of the burning appliance
Even if the cut edge of the packing material is caught,
The highly water-repellent silicone resin or PTFE resin
Repels moisture to block the entry of packing material
The metal parts of the burner that come in contact with this packing material.
It is possible to prevent corrosion. In addition, silicone resin or P
Since TFE resin has high heat resistance, it does not deteriorate due to heat during use.
It is.

In addition to the above action, the present invention according to claim 3
According to the manufacturing method, the inorganic flame retardant compounded in the emulsion
Need to be mixed with silicone resin or PTFE resin
Since it will be included in the entire lumat inside,
The flame resistance of the firewood becomes high.

[0021]

According to the manufacturing method of the present invention as defined in claim 4 or 5, the operation of impregnating the needle mat with the emulsion can be carried out continuously and efficiently.

As mentioned above, the emulsion is volatile.
The book according to claim 6 because it is not ignitable or harmful by
As in the manufacturing method of the invention, the needle mat is impregnated with air.
There is no problem even if the water of Marujeong is heated and evaporated.
In addition, drying work can be performed quickly .

[0024]

FIG. 1 shows a first embodiment embodying the present invention.
~ It demonstrates with reference to FIG. 4 and 5 show a packing material 1 manufactured in the present embodiment. The packing material 1 is mainly composed of glass fibers, and a needle mat 2 to which a silicone resin 3 permeates and adheres to the entire inside, and a needle mat 2 It is composed of a release paper 5 with an acrylic adhesive 4 attached to the lower surface. Hereinafter, the manufacturing method of this embodiment will be described in the order of steps.

(1) As shown in FIG. 1, a cotton-like material mainly composed of glass fibers is pierced with a large number of hooked needles and needle punching is performed, so that the glass fibers are bonded at many fiber-bonding portions 6. The needle mat 2 entangled in the thickness direction is formed.

(2) As shown in FIG. 2, emulsion 7 made of colloidal particles of silicone resin dispersed in water and further containing scaly mica as an inorganic flame retardant and acrylic primer was dipped. Store in tank 8. The needle mat 2 is immersed in the emulsion 7 while being continuously fed by the roller feeding device 9 to completely impregnate the entire inside of the needle mat 2 with the emulsion 7. The time that each part of the needle mat 2 is immersed is about 20 to 100 seconds. By adjusting the concentration of emulsion 7,
The impregnation rate of the silicone resin can be changed.

(3) The needle mat 2 is dried,
The water content of the emulsion 7 is evaporated. In order to accelerate the drying, it is heated by a heater or blown with warm air. Since the emulsion 7 using water is neither ignitable nor harmful, this drying operation can be performed safely. When dried in this way, as shown in FIGS. 3 and 4, the silicon resin 3 is attached to the surfaces of all the glass fibers 2a constituting the needle mat 2 and between the fibers.

(4) As shown in FIG. 4, if the release paper 5 with the acrylic adhesive 4 is attached to the lower surface of the needle mat 2, the packing raw material 11 is completed. At this time, the acrylic primer blended in the emulsion 7 is mixed with the silicone resin 3 and also exists on the lower surface of the needle mat 2, so that the acrylic resin is not adhered even though the silicone resin 3 has poor adhesion. The system adhesive 4 can be attached.

(5) As shown in FIG. 5, the packing material 11 is punched by a Thomson punching die or the like into a size and shape that fits the assembly portion of the combustion appliance to obtain the packing material 1. At the same time, the through hole 12 for inserting the screw can be punched. At this time, since the silicone resin 3 stops the movement of the glass fiber of the needle mat 2, the punching process can be easily performed.

Packing material 1 manufactured as described above
After removing the release paper 5, as shown in FIG. 6, between the combustion chamber 16 and the heat exchanger 17 of the combustion instrument 15, the heat exchanger 1
7 and the exhaust chamber 18, and is used by being interposed between the exhaust chamber 18 and the exhaust port 19, and the like.

According to the manufacturing method of this embodiment , the operations and effects described in the section [Operation] are obtained.

Next, a second embodiment of the present invention will be described. FIG. 7 shows the packing material 21 manufactured in this example,
The manufacturing method of this embodiment differs from the first embodiment only in the following points. Therefore, the same members as those of the first embodiment are designated by the same reference numerals as those of the first embodiment in FIG.

A: A non-woven fabric needle mat 2 is formed by stacking a non-woven fabric 10 made of polyester fiber on the upper surface of a cotton-like body mainly composed of glass fibers and simultaneously performing needle punching from the non-woven fabric side. b: The same emulsion as in the first embodiment is impregnated into the entire inside of the needle mat 2 with nonwoven fabric.

FIGS. 8 and 9 show a modification of the second embodiment. The packing material 22 of FIG. 8 has the non-woven fabric 10 side with the adhesive 4 and release paper 5, and the packing material 23 of FIG. Is a product in which the non-woven fabric 10 is laminated inside the cotton-like body and simultaneously needle-punched from both sides of the cotton-like body.

According to the present embodiment, in addition to the function and effect of the first embodiment, the cotton fiber-like glass fiber and the nonwoven fabric 10
Rester fiber and tertiary by simultaneous needle punching
Originally intertwined. The polyester fiber of the non-woven fabric 10 is
Breaks or breaks during needlepunching than fiber
Because it is difficult to process, only the glass fiber is needle punched.
The binding force in the thickness direction increases more than when
Become stronger. Therefore, the shape stability is further improved and
Peeling inside the packing material 21.22.23 is unlikely to occur.
Become

However, the packing containing the non-woven fabric 10 as described above
If the burner materials 21, 22.23 are used in a combustion appliance,
The polyester fiber receives high heat and is carbonized and burned into the burner 15.
May be attached. Then, for maintenance
When opening 15, the packing material 21.22.23 breaks.
There is a possibility that it will not be reused. In such cases
In this case, it is preferable not to use the non-woven fabric 10. Non-woven fabric 1
As mentioned above, even if you do not use 0
Therefore, practically sufficient shape stability can be obtained.

The present invention is not limited to the configuration of the above-described embodiment, but may be embodied with appropriate modifications within the scope not departing from the spirit of the invention, for example, as follows. (1) Provide release paper with adhesive on both sides of the packing material.

[0038]

As described above in detail, according to the method of manufacturing the packing material for a combustion appliance according to the invention of claim 1 or 2, the silicone resin or PT is entirely provided inside the needle mat.
During the impregnation work and the drying work for attaching the FE resin, there is no risk of causing a fire or harming the health of workers, and these works can be performed safely and safely. Since components that can be chemically decomposed can be blended, useful components that can exhibit properties such as water repellency and flame retardancy by thermal decomposition can be blended, and the degree of freedom in blending design can be increased. Can
Moreover, unlike the prior art, since the silicone resin or the PTFE resin can be attached to the entire inside of the needle mat, it is possible to suppress the fuzz and the scattering of the artificial inorganic fiber not only from the surface but also from the cut, and from the cut. It is also possible to block the ingress of water and prevent the corrosion of combustion appliances.
It In addition, the action and action to strongly hold the glass fiber comrades together
Acrylic that also has the action of strengthening the adhesion of the ril adhesive
By dispersing the resin-based primer in the emulsion,
Generally, the amount of expensive silicon resin or PTFE resin used
It can be reduced, and also peeling with acrylic adhesive
The effect of two birds with one stone, which makes it possible to attach release paper
The fruit is obtained.

In addition to the above effects, the manufacturing method according to claim 3
According to this, the flame retardancy of the packing material is further increased.

[0040]

According to the manufacturing method of the fourth or fifth aspect, the operation of impregnating the needle mat with the emulsion can be performed continuously and efficiently.

According to the manufacturing method of claim 6,
The needle mat can be dried quickly.

[Brief description of drawings]

FIG. 1 is an enlarged sectional view of a needle mat formed in a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of a step of immersing the needle mat in an emulsion.

FIG. 3 is an internal enlarged cross-sectional view of the needle mat.

FIG. 4 is an enlarged cross-sectional view of a step of attaching a release paper with an adhesive to the needle mat.

FIG. 5 is a perspective view of a step of punching a packing material from a packing original plate.

FIG. 6 is a cross-sectional view of a combustion instrument in which the packing material is interposed.

FIG. 7 is an enlarged cross-sectional view of a packing material manufactured according to the second embodiment.

FIG. 8 is an enlarged cross-sectional view of a packing material manufactured by a modification of the second embodiment.

FIG. 9 is an enlarged sectional view of a packing material manufactured according to another modification of the second embodiment.

[Explanation of symbols]

1 Packing Material 2 Needle Mat 3 Silicone Resin 4 Acrylic Adhesive 5 Release Paper 7 Emulsion 10 Nonwoven Fabric 15 Combustion Appliance 21 Packing Material 22 Packing Material 23 Packing Material

Claims (6)

[Claims] 1. Water containing silicone resin colloidal particles or polytetrafluoroethylene resin colloidal particles and acrylic.
By dispersing the system primer, a water-dispersed emulsion that is not ignitable or harmful by volatilization is created, and the inside of the needle mat formed by needle punching a cotton-like body mainly composed of glass fiber is After impregnating the emulsion, by evaporating the water content of the emulsion impregnated in the needle mat, a silicone resin or a polytetrafluoroethylene resin is added to the entire inside of the needle mat.
Acrylic primer is attached and the surface of the needle mat is peeled off with acrylic adhesive.
A method for manufacturing a packing material for a combustion appliance, which comprises applying a release paper . 2. Water containing silicone resin colloidal particles or polytetrafluoroethylene resin colloidal particles and acrylic.
A water-dispersed emulsion that is not ignitable or harmful by volatilization is created by dispersing a system primer, and a cotton-like body composed mainly of glass fibers and a nonwoven fabric composed mainly of organic fibers are overlaid to form a simultaneous needle. After impregnating the emulsion inside the whole needle mat with a non-woven fabric formed by punching, by evaporating the water content of the emulsion impregnated into the needle mat with a non-woven fabric, the inside of the needle mat with a non-woven fabric is entirely siliconized. Resin or polytetrafluoroethylene resin and acrylic primer are attached, and the surface of the needle mat is peeled off with acrylic adhesive.
A method for manufacturing a packing material for a combustion appliance, which comprises applying a release paper . 3. The method for producing a packing material for a combustion appliance according to claim 1, wherein an inorganic flame retardant containing substantially no phosphorus, chlorine or sulfur is added to the emulsion. 4. The emulsion is stored in a dipping tank,
The needle mat is continuously fed by the roller feeder.
By dipping in the emulsion while
The method for producing a packing material for a combustion appliance according to claim 1, 2 or 3 , wherein the entire interior of the heating mat is impregnated with the emulsion . 5. Each portion of the needle mat is the emulsion.
The method for manufacturing a packing material for a combustion instrument according to claim 1, 2, 3 or 4 , wherein the time of immersion in John is 20 to 100 seconds . 6. The water content of the emulsion impregnated in the needle mat is heated to evaporate.
The method for manufacturing a packing material for a combustion appliance according to 3, 4, or 5.