JP5592668B2 - Weather strip and manufacturing method thereof - Google Patents

Description

  The present invention relates to a weather strip used for a door opening periphery or a door periphery of a vehicle such as an automobile, and a manufacturing method thereof.

  Generally, a weather strip is provided on the peripheral edge of a door of a vehicle such as an automobile or the peripheral edge of the door opening. The weather strip includes a trim portion having a substantially U-shaped cross-section that is fitted into a peripheral edge portion of the door or a flange at the peripheral edge of the door opening, and a hollow seal portion provided so as to protrude from the trim portion. When the door is closed, the seal portion is pressed against the door opening periphery or the door periphery, thereby sealing between the door and the body (the vehicle door opening periphery).

  In recent years, some weather strips have been improved in appearance quality by affixing (adhering) a nonwoven fabric to a design surface (see, for example, Patent Document 1). Conventionally, for example, a method of applying an adhesive to a weather strip, forming an adhesive layer, and then bonding a nonwoven fabric, or a PE sheet (polyethylene resin (PE) made of an adhesive layer on a nonwoven fabric body serving as a decoration layer) The non-woven fabric is bonded by a technique such as using a laminated non-woven fabric lined in advance by thermal welding and then thermally bonding the laminated non-woven fabric to the design surface of the vulcanized weather strip. It was.

JP 2007-131096 A

  However, when coloring the nonwoven fabric used as the decorative layer for improving the appearance quality, there is a concern that the adhesive force between the nonwoven fabric and the adhesive layer is reduced.

  When the adhesive force between the nonwoven fabric and the adhesive layer is reduced, the nonwoven fabric may be damaged when force is applied to the design surface, for example, due to friction with a roll member or guide member of a manufacturing apparatus, friction during inspection or boxing, etc. There is a risk of peeling from the adhesive layer. Such a defect may occur not only in the manufacturing process but also after the weather strip is mounted on the vehicle, depending on the use situation.

  As a result, the appearance quality may be deteriorated due to peeling of the nonwoven fabric.

  The present invention has been made to solve the above-mentioned problems, and its object is to reduce the deterioration of the appearance quality by suppressing the deterioration of the adhesive performance between the nonwoven fabric layer and the adhesive layer. It is to provide the strip and a manufacturing method thereof.

  In the following, each means suitable for solving the above problem will be described in terms of items. In addition, the effect etc. peculiar to the means to respond | correspond as needed are added.

Means 1. A trim portion having a substantially U-shaped cross section that is held by a flange on the periphery of the door of the vehicle or on the periphery of the door opening;
In the weather strip provided to protrude from the trim part, and provided with a hollow seal part pressed against the door opening periphery or the door periphery when the door is closed,
While interposing a resin adhesive layer on the outer surface of the trim part, forming a nonwoven fabric layer made of nonwoven fabric,
The non-woven fabric layer has a colored decorative layer and a non-colored adherend layer that is bonded to the resin adhesive layer and is not subjected to a coloring process .

  Here, “non-colored” means that coloring is not performed by a coloring agent such as a pigment or a dye. Therefore, the non-colored non-woven fabric refers to a so-called white non-woven fabric (including those in which colorless and transparent fibers appear white by light reflection).

  According to the said means 1, the nonwoven fabric layer adhere | attached on the outer surface of a trim part is comprised from the colored decoration layer and the non-colored to-be-adhered layer adhere | attached on a resin contact bonding layer. Thus, a beautiful appearance can be obtained by the decorative layer on the front surface side, and a stronger adhesive force with the resin adhesive layer can be obtained by the non-colored adherend layer on the back surface side. As a result, it is possible to suppress the deterioration of the appearance quality by suppressing the deterioration of the adhesive performance between the nonwoven fabric layer and the resin adhesive layer, and consequently the peeling of the nonwoven fabric layer.

  Furthermore, by providing a non-colored (white) layer, it is possible to hide the black color of EPDM rubber, which is the material color of the weatherstrip body, and it is easy to assume the color of the decorative layer visible from the outside. Become. In addition, since the adhesive layer is provided in between, the adhesive of the resin adhesive layer penetrates into the decorative layer and unintentional patterns appear on the decorative layer surface, reducing the occurrence of defects such as deterioration in appearance quality. it can. As a result, the concealability of the base color is enhanced, and a beautiful appearance and excellent texture can be obtained also in terms of hue.

  In addition, it is not necessary to change the components of the adhesive for each product type in consideration of the difference in adhesive strength caused by the difference in the colorant used for coloring the decorative layer, and the versatility can be improved. .

  Note that the decrease in adhesion performance is not only caused by the colorant, but may also be caused by, for example, residual chemicals that stabilize the colorant or residual components when excess colorant is washed away. In addition, since it decreases even when extraneous matter is attached to the surface of the fiber by the coloring process, the “uncolored fiber” may be read as “fiber not subjected to the coloring process”.

Mean 2. The trim part includes a lip part formed extending from the outer surface of the trim part,
At least on the outer surface of the lip portion, a resin adhesive layer is interposed to form a nonwoven fabric layer made of nonwoven fabric,
The weather according to means 1, wherein the non-woven fabric layer has a colored decorative layer and an uncolored adherend layer that is bonded to the resin adhesive layer and is not subjected to a coloring process. strip.

  According to the means 2, the same effects as the means 1 can be obtained.

  Means 3. The web according to means 1 or 2, wherein the nonwoven fabric constituting the nonwoven fabric layer is a laminate of the nonwoven fabric constituting the decorative layer and the nonwoven fabric constituting the adherend layer. The strip.

  According to the above means 3, for example, the colorant penetrates to the adherend layer compared to the case where the two layers are formed by applying the colorant from the surface side of one nonwoven fabric, and the adhesion performance with the resin adhesive layer There is little risk of occurrence of a problem such as lowering, and the effects of the means 1 and 2 can be made more reliable.

  Means 4. The weather strip according to any one of means 1 to 3, wherein a thickness of the adherend layer is 50 μm or more.

  According to the means 4, the operational effects of the means 1 to 3 can be made more reliable. Note that if the thickness of the adherend layer is smaller (thinner) than 50 μm, it becomes difficult to form the adherend layer. There is no particular upper limit on the thickness, but if it is too thick, it will be easy to peel off in the nonwoven fabric layer, and therefore a thickness of up to about 1 mm is preferable from the economical and flexible aspects.

Means 5. A weatherstrip manufacturing method according to any one of means 1 to 4,
By laminating the colored non-woven fabric constituting the decorative layer and the non-colored non-woven fabric which is not subjected to the coloring process constituting the adherend layer, the fibers of the non-woven fabric are entangled and integrated, A nonwoven fabric forming step for forming a nonwoven fabric constituting the nonwoven fabric layer;
An extrusion process of extruding the weather strip trim and / or lip with unvulcanized EPDM solid rubber and the seal with unvulcanized EPDM sponge rubber;
A vulcanization step of vulcanizing the extruded unvulcanized EPDM solid rubber and unvulcanized EPDM sponge rubber;
Forming the nonwoven fabric layer by adhering the nonwoven fabric formed by the nonwoven fabric formation process to the outer surface of the trimmed and / or lip portion of the vulcanized EPDM solid rubber through a resin adhesive layer A method of manufacturing a weather strip comprising the steps of:

According to the means 5, the same effects as the means 1 and 2 can be obtained. Additionally, the unit 5, a colored nonwoven fabric constituting the decorative layer, the lamination of a colored machining is not subjected to uncolored constituting the adherend layer nonwoven, needle punched fibers of the nonwoven fabric Since the nonwoven fabric which comprises a nonwoven fabric layer is formed by intertwining and integrating by processing etc., the effect similar to the said means 3 is also show | played. Furthermore, according to this means, in forming the decorative layer, it is not necessary to perform complicated control such as coloring within a certain thickness range from the surface side while securing a layer to be adhered having a predetermined thickness. As a result, the operation of forming a nonwoven fabric having a two-layer structure composed of a colored layer and a non-colored layer becomes relatively easy, which can contribute to improvement of productivity and cost reduction.

It is a perspective view which shows a motor vehicle. It is sectional drawing which shows the weather strip in one Embodiment. It is sectional drawing which shows the intermediate molded object of a weather strip. It is a partial expanded sectional view for demonstrating a resin contact bonding layer and a nonwoven fabric layer. It is a schematic diagram which shows a part of production line of a weather strip. It is sectional drawing which shows the weather strip in another embodiment of this invention.

  Hereinafter, an embodiment will be described with reference to the drawings. As shown in FIG. 1, a door 2 is provided on the side of an automobile 1 as a vehicle so as to be openable and closable, and a weather strip 4 is attached to the periphery of a door opening 3 on the body side corresponding to the door 2. The weather strip 4 of the present embodiment is formed mainly by an extrusion method, and has an annular shape as a whole. However, it is not always necessary to form an annular shape. For example, the end of the weather strip 4 (extrusion molded body) is arranged apart from the lower side of the door opening 3 and the end is covered with a scuff plate or the like. It can also be applied to things.

  As shown in FIG. 2, the weather strip 4 includes a trim portion 5 and a seal portion 6. The trim portion 5 includes a connecting portion 13 that connects the vehicle inner side wall portion 11, the vehicle outer side wall portion 12, and both side walls 11, 12, and has a substantially U-shaped cross section as a whole. The trim portion 5 is configured by a metal insert 14 embedded therein with a coating material of EPDM (ethylene-propylene-diene copolymer) solid rubber.

  A plurality of holding lip portions 15 extending toward the inner side (vehicle inner side) of the trim portion 5 are integrally formed on the inner surface (vehicle inner side surface) of the vehicle outer side wall portion 12, and the inner surface (vehicle outer surface) of the vehicle inner side wall portion 11 is integrally formed. A holding lip portion 16 that extends toward the inner side (vehicle outer side) of the trim portion 5 is integrally formed. A design lip 18 is formed on the connecting portion 13 so as to cover an end of an interior product such as garnish (not shown). The design lip 18 corresponds to the lip portion in the present embodiment. In addition, you may use the thing in which the insert is not embed | buried under the inside of the trim part 5. FIG. Alternatively, the holding lip may be omitted and the double-sided adhesive tape may be attached to the flange. Furthermore, the material for the covering material of the trim portion 5 is not limited to EPDM solid rubber, and a fine foam material having a specific gravity of about 0.8 to 1.0 or a sponge material having a specific gravity of 0.4 to 0.79 may be used. it can. Furthermore, not only rubber but also thermoplastic elastomer can be used.

  Further, a flange 23 is formed at the periphery of the door opening 3 by joining the inner panel 21 and the outer panel 22 of the body. By fitting the trim portion 5 into the flange 23, the weather strip 4 is It is held at the periphery of the door opening 3.

  The seal portion 6 protrudes and is integrally provided on the vehicle outer side wall portion 12 and is formed in a hollow shape by EPDM sponge rubber. When the door 2 is closed, the seal portion 6 is pressed against the periphery of the door 2 to seal between the door 2 and the body of the automobile 1.

  When the weather strip 4 is attached, the outer surface of the design lip 18 extends from the substantially distal end portion to the proximal end portion, and further to the connecting portion 13 of the trim portion 5 and the connecting portion with the seal portion 6 in the outer side wall portion 12. Becomes the design surface D appearing in the appearance. As shown in the partially enlarged cross-sectional view of FIG. 4, a nonwoven fabric layer 26 composed of a nonwoven fabric is formed on the design surface D with a sheet-like (including film-like) resin adhesive layer 25 interposed therebetween. . In addition, as shown in FIGS. 2 and 3, the design surface D is formed by attaching a nonwoven fabric to the tip of the design lip 18 and includes a folded portion.

  The resin adhesive layer 25 is made of an uncolored material made of polyethylene (PE), which is an olefinic thermoplastic resin. Not limited to this, the resin adhesive layer 25 may be colored. Of PE, linear low density polyethylene (LLDPE) having a low melting point is preferred.

  The nonwoven fabric layer 26 is composed of a nonwoven fabric mainly composed of polyester fibers such as polyethylene phthalate (PET). Of course, the nonwoven fabric layer 26 may be composed of other thermoplastic resin materials such as PE and polypropylene (PP) in addition to polyester such as PET.

The nonwoven fabric layer 26 has a two-layer structure including a decorative layer 26a that appears on the outer surface and an adherend layer 26b that adheres to the resin adhesive layer 25 on the inner side. The decorative layer 26a is made of a colored non-woven fabric, and the adherend layer 26b is made of a non-colored non-woven fabric that has not been colored. The decorating layer 26a is colored, for example, to match the color of indoor interior items .

  In this embodiment, the thickness W1 of the entire nonwoven fabric layer 26 is set to 500 to 2000 μm, and the thickness W2 of the adherend layer 26b is set to 50 μm or more and less than 1000 μm. In the present embodiment, the thickness W2 of the adherend layer 26b is 100 μm.

  Next, a method for manufacturing the weather strip 4 will be described. FIG. 5 is a schematic view showing a part of the production line of the weather strip 4, in which the weather strip 4 is produced while proceeding from the left to the right.

  First, in the extrusion molding process, the insert 14 is continuously supplied to the rubber extruder 31 together with the EPDM unvulcanized rubber. Then, in a state where the insert 14 is covered with the EPDM unvulcanized rubber, an intermediate molded body 32 (see FIG. 3) that becomes the main body portion of the weather strip 4 is extruded from the die of the rubber extruder 31. At this stage, the portion in which the insert 14 corresponding to the trim portion 5 is embedded is extruded in a substantially flat plate shape in an open state as shown in FIG.

  In the subsequent vulcanization step, the extruded intermediate molded body 32 is guided to a high-frequency vulcanization tank (UHF) 33 and subjected to primary vulcanization. Then, it guides to a hot air vulcanization tank (HAV) 34, secondary vulcanization is performed, and vulcanization is completed.

  Thereafter, the nonwoven fabric layer 26 is formed on the intermediate molded body 32 in the nonwoven fabric layer forming step. More specifically, the laminated nonwoven fabric 35 manufactured in advance through a nonwoven fabric forming step is fed out and pressure-bonded to a portion corresponding to the design surface D of the intermediate molded body 32 that is relatively high temperature immediately after vulcanization.

  Here, the manufacturing method (nonwoven fabric formation process) of the laminated nonwoven fabric 35 is demonstrated. First, the nonwoven fabric which comprises the decorating layer 26a, and the nonwoven fabric which comprises the to-be-adhered layer 26b are each manufactured. As a manufacturing method, any manufacturing method such as a wet method, a dry method, or a water jet method can be employed. And coloring is given with respect to the nonwoven fabric which comprises the decoration layer 26a.

  Then, the nonwoven fabric which comprises the decorating layer 26a, and the nonwoven fabric which comprises the to-be-adhered layer 26b are laminated | stacked, the fibers of the said nonwoven fabric are intertwined by arbitrary methods, such as a needle punch process, and are integrated as one nonwoven fabric. To do. Thereby, the nonwoven fabric (nonwoven fabric laminated body) which comprises the nonwoven fabric layer 26 is obtained.

  And the PE sheet | seat used as the resin contact bonding layer 25 is lined by heat welding with respect to the to-be-adhered layer 26b side of the said nonwoven fabric laminated body. Thereby, the laminated nonwoven fabric 35 is completed.

  As described above, by pressing the laminated nonwoven fabric 35 to the intermediate molded body 32, the PE sheet is melted and the laminated nonwoven fabric 35 is thermally welded to the intermediate molded body 32. That is, the process of obtaining these non-woven fabric laminates, laminated non-woven fabric 35, and thermal welding of the laminated non-woven fabric 35 corresponds to the non-woven fabric forming process in the present embodiment.

  The intermediate molded body 32 that has undergone the nonwoven fabric layer forming step is bent by a bending machine 37 to form a trim portion 5 having a substantially U-shaped cross section. Then, the weather strip 4 is obtained by cutting into a predetermined size by the cutter 38.

  As described above in detail, in this embodiment, the nonwoven fabric layer 26 formed on the design surface D of the weather strip 4 such as the outer surface of the design lip 18 is composed of a nonwoven fabric made of polyester fiber. A fabric-like appearance similar to the case of using a cloth can be obtained, a beautiful appearance can be obtained, and the texture can be improved. On the other hand, since a highly productive nonwoven fabric is used, production is possible at low cost.

  Moreover, in this embodiment, the nonwoven fabric layer 26 is comprised from the colored decoration layer 26a and the uncolored to-be-adhered layer 26b adhere | attached on the resin contact bonding layer 25. As shown in FIG. As a result, a beautiful appearance can be obtained by the decorative layer 26a on the front surface side, and a stronger adhesive force to the resin adhesive layer 25 can be obtained by the non-colored adherend layer 26b on the back surface side. As a result, the deterioration of the appearance quality can be suppressed by preventing the deterioration of the adhesive performance between the nonwoven fabric layer 26 and the resin adhesive layer 25 and thus the peeling of the nonwoven fabric layer 26. In addition, considering the difference in the colorant used for coloring the decorative layer 26a and / or the difference in adhesive strength due to residual chemicals etc. due to the coloring process, the components of the adhesive of the PE sheet for each product type, etc. Therefore, versatility can be improved.

  Furthermore, by providing a non-colored (white) layer, it is possible to hide the black color of the EPDM rubber, which is the base material, and it is easy to make the color of the decorative layer 26a visually recognized from the outside. As a result, the concealability of the base color is enhanced, and a beautiful appearance and excellent texture can be obtained also in terms of hue.

  In the present embodiment, the nonwoven fabric constituting the decorative layer 26a and the nonwoven fabric constituting the adherend layer 26b are laminated, and the fibers of the nonwoven fabric are entangled by an arbitrary method such as needle punching. The nonwoven fabric (nonwoven fabric laminated body) which comprises the nonwoven fabric layer 26 is formed by integrating as a nonwoven fabric. However, for example, it may be formed in two layers by applying a colorant from the surface side of one nonwoven fabric. However, in that case, there is a possibility that the colorant penetrates to the adherend layer 26b and a problem that the adhesive performance with the resin adhesive layer 25 is deteriorated may occur. In that case, in forming the decorative layer 26a, it is necessary to perform complicated control such as coloring within a certain thickness range from the surface side while securing the adherend layer 26b of a predetermined thickness, As in the present embodiment, it is relatively easy to form a two-layered nonwoven fabric by laminating a colored layer and a non-colored layer, which can contribute to improvement in productivity and cost reduction. .

  Moreover, in this embodiment, it has the structure by which the nonwoven fabric layer 26 is formed by crimping | bonding the laminated nonwoven fabric 35 backed with PE sheet to the intermediate molded body 32, and carrying out heat welding. For this reason, when the nonwoven fabric layer 26 is formed, an adhesive application step is not necessary. Further, since the intermediate molded body 32 having a relatively high temperature immediately after vulcanization is pressure-bonded, a heating process for heat welding is not required separately. As a result, the formation of the nonwoven fabric layer 26, that is, the attachment of the nonwoven fabric becomes relatively easy. Also in this respect, productivity can be improved and low cost can be realized.

  Furthermore, by adopting a configuration in which the sheet-like resin adhesive layer 25 is interposed, an unintended pattern appears on the surface of the decorative layer 26a due to the penetration of the adhesive, unlike the configuration in which the nonwoven fabric is stuck using an adhesive. It is also possible to reduce the occurrence of problems such as deterioration in quality.

  In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other application examples and modification examples not illustrated below are also possible.

  (A) In the above embodiment, the weather strip 4 provided at the periphery of the door opening 3 on the body side corresponding to the (side front) door 2 is embodied, but the periphery of the door 2 or the rear door, back door It is also possible to apply to weather strips provided on the peripheral edge of other doors such as luggage doors (trunk lids) and roof doors (sliding roof panels) or on the opening peripheral edges of the doors facing the doors.

  (B) As shown in FIG. 6, in the weather strip in which the design lip 18 is omitted and the outer surface of the trim portion 5 is a design surface, the resin adhesive layer 25 and the nonwoven fabric layer 26 are formed on the outer surface of the trim portion 5. It is good also as a structure to form.

  (C) In the above embodiment, EPDM is exemplified as a material constituting the weather strip 4, but other rubber materials such as IR (isoprene rubber) and CR (chloroprene rubber) may be used.

  (D) In the said embodiment, although PE is illustrated as a raw material which comprises the resin contact bonding layer 25, you may use other resin materials, such as PP.

  (E) In the above embodiment, when the nonwoven fabric layer 26 is formed, a laminated nonwoven fabric 35 in which a PE sheet serving as the resin adhesive layer 25 is lined in advance with respect to the nonwoven fabric serving as the nonwoven fabric layer 26 is used. The molded body 32 is crimped and thermally welded. The non-woven fabric sticking method is not limited to this, and for example, a configuration in which a PE sheet to be the resin adhesive layer 25 is interposed between the intermediate molded body 32 and the non-woven fabric immediately after the vulcanization step and immediately before the non-woven fabric is bonded. It is good. Moreover, it is good also as a structure which apply | coats an adhesive agent to the intermediate molded object 32, and affixes a nonwoven fabric.

  (F) In the above embodiment, in manufacturing a nonwoven fabric having the colored decorative layer 26a and the non-colored adherend layer 26b, the nonwoven fabric constituting the decorating layer 26a and the adherend layer 26b are constituted. A non-woven fabric is laminated, and the fibers of the non-woven fabric are entangled by an arbitrary method such as needle punching to be integrated as a single non-woven fabric. However, the method for forming a nonwoven fabric having a two-layer structure composed of a colored layer and an uncolored layer is not limited to this. For example, it is good also as a structure which makes a 2 layer structure by apply | coating a coloring agent from the surface side of one nonwoven fabric.

  (G) In the said embodiment, the thickness W1 of the nonwoven fabric layer 26 whole is set to 500-2000 micrometers, The thickness W2 of the to-be-adhered layer 26b is set to 50 micrometers or more and less than 1000 micrometers among them. Of course, the thickness W1 of the whole nonwoven fabric layer 26 and the thickness W2 of the adherend layer 26b are not limited to this. However, in order to obtain the various effects described above, it is preferable that at least the thickness W2 of the adherend layer 26b is set to 50 μm or more.

  (H) In the above embodiment, the nonwoven fabric constituting the decorative layer 26a and the nonwoven fabric constituting the adherend layer 26b are both composed of the same material nonwoven fabric mainly composed of polyester fibers such as polyethylene phthalate (PET). Has been. Not only this but the nonwoven fabric which comprises the decorating layer 26a, and the nonwoven fabric which comprises the to-be-adhered layer 26b may be formed with a respectively different material. For example, the non-woven fabric constituting the decorative layer 26a may be formed of a material having good color developability, and the non-woven fabric constituting the adherend layer 26b may be formed of a material having good adhesiveness with the resin adhesive layer 25.

  (I) In the above embodiment, the weather strip 4 is attached over the entire periphery of the door opening 3, but it does not necessarily have to be the entire periphery. For example, the weather strip 4 may be a partially attached weather strip. . Moreover, you may equip partly with the shaping | molding part.

  DESCRIPTION OF SYMBOLS 1 ... Automobile, 2 ... Door, 3 ... Door opening, 4 ... Weather strip, 5 ... Trim part, 6 ... Seal part, 18 ... Design lip, 25 ... Resin adhesive layer, 26 ... Nonwoven fabric layer, 26a ... Decoration layer 26b ... adhered layer, 32 ... intermediate molded body, 35 ... laminated nonwoven fabric, D ... design surface, W1 ... total thickness of nonwoven fabric layer, W2 ... thickness of adherend layer.

Claims (5)

A trim portion having a substantially U-shaped cross section that is held by a flange on the periphery of the door of the vehicle or on the periphery of the door opening;
In the weather strip provided to protrude from the trim part, and provided with a hollow seal part pressed against the door opening periphery or the door periphery when the door is closed,
While interposing a resin adhesive layer on the outer surface of the trim part, forming a nonwoven fabric layer made of nonwoven fabric,
The non-woven fabric layer has a colored decorative layer and a non-colored adherend layer that is bonded to the resin adhesive layer and is not subjected to a coloring process . The trim part includes a lip part formed extending from the outer surface of the trim part,
At least on the outer surface of the lip portion, a resin adhesive layer is interposed to form a nonwoven fabric layer made of nonwoven fabric,
2. The wafer according to claim 1, wherein the nonwoven fabric layer has a colored decorative layer and an uncolored adherend layer that is bonded to the resin adhesive layer and is not colored. 3. The strip.   The nonwoven fabric constituting the nonwoven fabric layer is a laminate of the nonwoven fabric constituting the decorating layer and the nonwoven fabric constituting the adherend layer, which are integrally formed. Weather strip.   The weather strip according to any one of claims 1 to 3, wherein a thickness of the adherend layer is set to 50 µm or more and less than 1000 µm. A method of manufacturing a weather strip according to any one of claims 1 to 4,
By laminating the colored non-woven fabric constituting the decorative layer and the non-colored non-woven fabric which is not subjected to the coloring process constituting the adherend layer, the fibers of the non-woven fabric are entangled and integrated, A nonwoven fabric forming step for forming a nonwoven fabric constituting the nonwoven fabric layer;
An extrusion process of extruding the weather strip trim and / or lip with unvulcanized EPDM solid rubber and the seal with unvulcanized EPDM sponge rubber;
A vulcanization step of vulcanizing the extruded unvulcanized EPDM solid rubber and unvulcanized EPDM sponge rubber;
Forming the nonwoven fabric layer by adhering the nonwoven fabric formed by the nonwoven fabric formation process to the outer surface of the trimmed and / or lip portion of the vulcanized EPDM solid rubber through a resin adhesive layer A method of manufacturing a weather strip comprising the steps of:

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