JP2007022347A - Molding with flock for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a molding with flock for an automobile inexpensive, excellent in an adhesive property of the flock and free to coproduce with a flock line of PVC specifications. <P>SOLUTION: This molding has a hydrophilic surface treated layer formed by combustion chemical evaporation on a surface of a flocked part and is furnished with a flock pile on the surface treated layer by adhering it. The hydrophilic surface treated layer such as a particulate layer of silicone oxide, titanium oxide or alumina oxide is formed on a surface of the flocked part by combustion chemical evaporation to improve the adhesive property with the flock pile in using low adhesive olefine or styrene resin as a flocked part material. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a molding for a vehicle such as a molding (belt molding) attached to a door glass door of a vehicle, and particularly relates to a molding with flocking.

As shown in FIGS. 2 (a) and 2 (b), the door glass 2 of the door 1 of the automobile door 1 is slidably contacted with the door glass with elasticity and sealed between the door panel 3 and the door glass. A weather strip 4 is attached to prevent rainwater and dust from entering.
In such a weather strip, for the purpose of wiping off sand and dust adhering to the door glass, a flocking adhesion molding in which flocking is applied to the sliding contact portion of the lip 5 with the glass is employed.
In addition, flocking is also applied to a stabilizer provided toward the inner glass surface of the belt line molding.
Conventionally, automobile malls such as weatherstrips are mainly made of polyvinyl chloride resin (PVC), but they are environmentally hazardous substances that are considered to be one of the causes of dioxin generation. Is being adopted in part.
Since the olefin resin is hardly adhesive, for example, Japanese Patent Application Laid-Open No. 2003-54263 discloses a technique for forming a lip portion with an olefin-based elastomer containing a hydroxyl group and bonding a flock.
However, not only is the material for forming the lip part expensive, but the adhesive also requires a special adhesive.
Moreover, in the present situation where both olefin-based or styrene-based resin and PVC resin are still employed, if an attempt is made to mix and produce in the production line of a PVC automobile mall, an adhesive for bonding piles is used. Because of the difference, it is necessary to change the adhesive, and there is a problem that an adhesive waste liquid is generated at the time of the change.

JP 2003-54263 A

  In view of the above technical problems, an object of the present invention is to obtain a low-cost flocking flock for automobiles which is excellent in flocking adhesiveness and can be produced in a mixed flow with a flocking line of PVC specifications.

The technical gist of the present invention is that it has a hydrophilic surface treatment layer formed by combustion chemical vapor deposition on the surface of the planted portion, and a flocking pile is adhered on the surface treatment layer.
Here, combustion chemical vapor deposition refers to a method of introducing a surface-modifying compound into a fuel gas flame and spraying it onto the surface of a solid substance together with the flame.
Moreover, a to-be-planted part means the part to which flocking is given, such as the draining lip | rip part of a door belt line molding, or a stabilizer part, in the mall for motor vehicles.
In order to improve the adhesion with the flocked pile when using an olefin-based or styrenic resin that is difficult to adhere as the flocked portion material, the present invention provides silicon oxide or A hydrophilic surface treatment layer such as a fine particle layer of either titanium oxide or alumina is formed.

The hydrophilic surface treatment layer is formed by combustion chemical vapor deposition put into a compound combustion gas containing silane atoms, or formed by combustion chemical vapor deposition put a compound containing titanium atoms into the combustion gas, Or it is good to form by the combustion chemical vapor deposition which injected | thrown-in the compound containing an aluminum atom in combustion gas.
This combustion chemical vapor deposition can incorporate the surface modification methods (silicic acid flame treatment, titanium oxide flame treatment, aluminum oxide flame treatment) disclosed in Japanese Patent No. 3557194.
In addition, if the to-be-grafted part is formed of an olefin-based or styrene-based resin with a functional group added, a hydrophilic surface treatment layer is formed on the to-be-grafted part surface by combustion chemical vapor deposition, so that the flocking pile has more adhesive force. Become stronger.

The molding with flocking for automobiles according to the present invention has a fine particle layer of hydrophilic silicon oxide, titanium oxide or alumina oxide by combustion chemical vapor deposition on the surface of the flocked portion, so that flocking pile adhesion High nature.
Thereby, the material selection width | variety of a to-be-planted part, a flocking pile, and an adhesive agent can be extended significantly.
As an adhesive used for bonding the flocked pile, for example, an adhesive conventionally used for PVC can be used.
Since the adhesive for bonding the flocked pile can be made common with the PVC-specific adhesive, it is possible to eliminate the generation of the adhesive waste liquid that has been generated at the time of the setup change.
In addition, when an olefin-based or styrene-based resin adhesive is used, the adhesiveness is further improved.

The molding with flocking for automobiles according to the present invention is intended for all malls to be flocked at least partially, and is not limited to door belt line molding, but is particularly effective for flocking sliding parts, and doors. It is good to apply to the flocking structure to the lip part and stabilizer part of the molding where the glass slides.
Hereinafter, a molding with a draining lip will be described as a representative example.
A cross-sectional view in the width direction of the molding 10 with a draining lip is shown in FIG.
The feature of the present invention lies in the flocking structure of the lip portion, which is the flocked portion, and FIG. 1 shows only the draining lip portion and does not show the entire molding.
The molding 10 with a draining lip is made of a long olefin-based or styrene-based resin, and a spatula-shaped lip portion 12 is provided on a base portion 11 attached to the door body side of an automobile.
The lip portion 12 has a flocked pile 15 on the sliding contact side surface 12a of the door glass.
An enlarged view of the joint portion between the lip portion 12 and the flocked pile 15 is shown in FIG.
The lip portion 12 has a silicon oxide fine particle layer 13 formed on the sliding contact side surface 12a as a hydrophilic surface treatment layer by combustion chemical vapor deposition.
An adhesive layer 14 coated with an adhesive is provided on the silicon oxide fine particle layer 13, and a pile 15 is bonded and planted.
The silicon oxide layer 13 as a surface treatment layer is formed by combustion chemical vapor deposition, for example, by blowing a modifier containing a silane atom such as alkylsilane or alkoxysilane onto a fuel gas flame while spraying it on the sliding surface of the lip portion. It is formed by decomposition.
The surface treatment layer may be formed by using a fuel gas containing a modifier compound containing a titanium atom or an aluminum atom instead of a silane atom as a modifier compound, and spraying the flame.
By providing a surface treatment layer with high adhesiveness as described above, for example, an adhesive that has been used in conventional draining lips of PVC specifications can be used as the adhesive.
Further, when the lip portion 12 is formed of an olefin-based or styrene-based resin to which a functional group is added, the adhesiveness of the flocked pile can be further improved.
For example, when the draining lip 10 is made of an olefin resin and the base layer 11, the lip 12 and the flocking pile 15 are made of an adhesive polyolefin resin, the resin constituting the draining lip is unified with the olefin resin and recycled. It becomes easy to do.

(A) shows the cross-sectional explanatory drawing of the draining lip for motor vehicles concerning this invention in the width direction, (b) shows the expanded sectional view of the adhesion part of a lip | rip part and a flocking pile. An example of wearing a molding with a draining lip is shown.

Explanation of symbols

10 Mall with draining lip for automobiles (mall with flocking for automobiles)
DESCRIPTION OF SYMBOLS 11 Base part 12 Lip part 12a Lip part sliding side surface 13 Silicon oxide fine particle layer (surface treatment layer)
14 Adhesive layer 15 Flocking pile

Claims (5)

  An automotive flocking molding having a hydrophilic surface treatment layer formed by combustion chemical vapor deposition on the surface of a flocked portion, and having a flocking pile adhered on the surface treatment layer.   The molding with flocking for automobiles according to claim 1, wherein the hydrophilic surface treatment layer is a fine particle layer of any one of silicon oxide, titanium oxide and alumina formed by combustion chemical vapor deposition.   The moulded part for automobiles according to claim 1 or 2, wherein the part to be implanted is formed of an olefin-based or styrene-based resin.   A method for producing an automotive flocking molding, characterized in that a hydrophilic surface treatment is applied to a portion to be transplanted by combustion chemical vapor deposition, and a pile is bonded and planted thereon.   The method for producing a molding with flocking for automobiles according to claim 4, wherein the hydrophilic surface treatment is one in which a fine particle layer of silicon oxide, titanium oxide or alumina is formed by combustion chemical vapor deposition.

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