JPH0213620B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is characterized by having an indicia stamped thereon, which indicia is visible through the use of a product bearing such an indicia. The invention also relates to reinforced plastic products having markings which are protected against removal due to external causes.

BACKGROUND OF THE INVENTION In the past, plastic products were generally provided with the required markings by labeling or by affixing signs, tags, or the like. .

Other conventional methods include, for example, placing a fully cured laminated or decorated charge in a manufacturing mold with the desired dimensions and shape, in order to give the product a clear marking. It is to insert it into the. This charge is typically held by clamps or the like and is also typically placed on top of the raw material and a spray of gel or the like is used to connect the charge to the raw material. has been done.

Problems to be Solved by the Invention However, reinforced plastic products with markings manufactured by such conventional manufacturing methods have the problem that they are expensive to manufacture, and that the markings are double-applied or the product is damaged. Another problem was that the markings themselves were easily removed from the product.

SUMMARY OF THE INVENTION Accordingly, the present invention provides a reinforced plastic product that is integral with the reinforced plastic product, has a mark or other mark on its surface that can be seen from the outside, and that is difficult to remove. This is the issue to be addressed.

Means for Solving the Problems In order to solve this problem, the present invention, by pultrusion, laminates another additional reinforcing fiber material on a reinforcing fiber material in the form of coarse twine or reinforcing mat material, After impregnating this laminate with a thermosetting synthetic resin material, an elongated reinforced plastic laminate material formed by squeezing out the excess thermosetting synthetic resin material and on one surface of the elongated reinforced plastic laminate material are formed. , a porous surface-forming reinforced plastic strip material with high air permeability laminated together and having an indicia stamped on its surface; a protective plastic film having transparent holes covering the upper surface of the surface-forming reinforced plastic strip material, the protective plastic film having transparent holes covering the upper surface of the elongated A reinforced plastic strip for forming a porous surface with high air permeability, which is squeezed out of a reinforced plastic laminate material and stamped with markings on said surface, eliminates the large number of pores present due to the porosity of the material. The invention features a reinforced plastic article having an indicia formed from a thermosetting synthetic resin material exuded through the surface.

In particular, according to the invention, a reinforced plastic laminate material produced by continuous pultrusion ("pultrusion") is provided with , a reinforced plastic product with a marking is made by laminating together a porous surface-forming reinforced plastic strip material with high air permeability, which is marked with the marking. The outer surface of the sign is protected by an integral protective plastic film with transparent holes, which allows the sign to be seen from the outside.
Alternatively, it is characterized in that the mark etc. can be clearly observed and the marking etc. cannot be easily removed. It is also clear that this marking or the like, if desired for certain reinforced plastic products, can be placed on the inner surface of the product.

According to one feature of the invention, the markings and the like are made of porous surface-forming reinforced plastics with high air permeability suitable for stamping, printing, or marking by any recommended method. strip material or other plastic strip material, and is laminated onto a reinforced plastic laminate material after being impregnated with a thermosetting synthetic resin material or the like; By compressing the formed laminate, a certain amount of excess thermosetting synthetic resin material is oozed or squeezed out of the reinforced plastic laminate material, and this is used as a protective plastic oil. be.
The reinforcing plastic strip material used in this case is porous and has a high air permeability and is therefore impregnated with a thermosetting synthetic resin material. Excess thermosetting synthetic material squeezed out of the plastic laminate material passes through the marked pores of the highly air permeable porous surface-forming reinforcing plastic strip material and strengthens it. During forming and curing of the plastic laminate material, on top of it,
transparent plastic film, or
It is intended to form a protective surface.

EXAMPLES Hereinafter, the present invention will be described in detail based on the accompanying drawings illustrating the manufacturing process and the like. In addition,
In each figure, the same or similar parts are
Similar reference numbers are given.

First, Figures 1 and 2 illustrate the successive stages of a pultrusion process for producing a reinforced plastic article bearing an indicia according to the invention. The pultrusion equipment for this purpose is of a type known to those skilled in the art and consists of a long, relatively narrow pultrusion processing line, with a supply of reinforcing fiber material,
It consists of such means as tensioning, proper alignment, or advancing, impregnating thermosetting synthetic resin material, molding, curing, and tensioning.

The pultrusion process begins at the entrance end 1 of the pultrusion line.
glass fiber from the spool shaft mount 6 placed at 0;
or the provision of a roving thread 7 of a similar reinforcing fiber material, but the roving thread 7 is collected together with reinforcing mat materials 8 and 9 made of glass fibres, which are supplied from bobbins 8' and 9'; Via spaced plow combs 11 and 12 it is introduced under tension into an impregnation tank 13 containing a thermosetting synthetic resin material or the like. Coarse twine 7
are preferably arranged at an angle to the vertical from the thread winding shaft mount 6 to the comb plates 11, 12, as shown in the figure, and the reinforcing mat materials 8,
9 is preferably arranged at right angles to the comb plates 11 and 12.

The roving yarn 7 and reinforcing mat material 8,9 pass through spaced comb openings (not shown) in the comb plates 11,12 and are fed into the impregnating tank 13. Inside,
Another additional reinforcing fiber material 14 is laminated to the roving 7 and the reinforcing mat material 8, 9, and the laminate thus formed is impregnated together with a thermosetting synthetic resin material, after which As will be explained later, a surface forming material 14' is laminated on top of the laminates. Note that these other additional reinforcing fiber materials 14 and surface forming materials 14'
is a support frame 1 installed above the impregnation tank 13.
The threads are supplied from thread winding frames 15 and 15' mounted on the threads 6, respectively. In addition, impregnation tank 1
In 3, a thermosetting synthetic material such as polyester, polyethylene, vinyl ester, phenol, epoxy or other thermosetting resin is supplied. Suitably, the polyester resin can be mixed with fillers, catalysts, pigments, UV additives, lubricants, etc. On passing through the impregnation tank 13, the other additional reinforcing fiber material 14 is arranged in line with the roving 7 and the reinforcing mat material 8, 9 and impregnated with thermosetting synthetic resin material. In this way, the various materials impregnated with thermosetting synthetic resin material are drawn as a laminate through the impregnating tank 13 and passed through the squeezing device 17, thereby removing the excess thermosetting resin material. A synthetic resin material is oozed or squeezed out of the laminate, and a surface forming material 14' is then laminated onto the top surface, as described above, to form an elongated reinforced plastic laminate. do. In this respect, the roving threads 7, reinforcing mat materials 8, 9 and other additional reinforcing fiber materials 14, imprinted or other materials fed at a rate compatible with the feeding of the surfacing material 14' A porous surface-forming reinforced plastic strip material 20 with high air permeability marked by means of The material moves so that it contacts the lower surface of the reinforced plastic laminate material. The porous surface-forming reinforced plastic strip material 20 having a high air permeability, which may be stamped "Nexus" or the like as described herein, is characterized by its porosity. For this purpose, the material is moistened with a thermosetting synthetic resin material squeezed from the reinforced plastic laminate stock, and as best shown in FIG.
By passing between the rotating rollers 22 and 23, the excess impregnated thermosetting synthetic resin material is caused to adhere to the squeezed reinforced plastic laminate material, and for that reason the excess impregnating heat is removed. The curable synthetic resin material is a porous surface forming plastic strip material 2 with high air permeability.
It is exuded through the pores in 0. here,
"Nexus" is Burinton Glass Fabric
Company's trade name for surfacing fabrics of polyester fibers used in applications such as reinforced plastic piping systems. It is used as a multi-pore material with different fiber orientations. The porous surfacing reinforced plastic strip material 20 is quickly wetted with polyester, vinyl ester, or epoxy resin.
In addition to the moistened reinforced plastic surfacing material 20, other suitable materials suitable for being stamped or otherwise marked may also be used. However, these materials not only allow excess impregnating resin, or the like, to pass through them and form a film of resin or the like thereon, but also cause markings thereon to smudge. It must have sufficient substantially uniform porosity to allow a surface that can be reproduced without becoming rough or uneven. This material also has a sufficiently high air permeability to allow both gas and liquid to flow through it. The film or coating of polyester resin material is preferably translucent, not opaque, and "clear".
It is desirable that the coloring be provided so as to have the following properties. Because the resin is preferably "transparent"
This is because it must have a sufficiently low "concealment" ability.

As described above, the reinforced plastic laminate material, which has had its lower surface contacted with the stamped reinforced plastic surfacing material 20, now has a bonded laminate together with the surfacing material 14'. and this laminate is then manufactured in accordance with U.S. Patent No.
The laminate is pulled through a forming station 25 by a tensioning device such as that described in US Pat. As shown, the speed at which the shaped final product 26 moves and the tension on the laminate are controlled by a controller 27. after that,
Product 26 is cut to the required length.

In this way, a reinforced plastic product with an indicia according to the invention is made of roving threads 7, reinforcing mat materials 8, 9 and other additional reinforcing materials 14 and thermosetting synthetic resin material impregnated therewith. A reinforced plastic laminate material consisting of a laminated material, a porous surface-forming reinforced plastic strip material 20 having high air permeability integrated therewith, and the porous surface-forming reinforced plastic strip material 2
It can be seen that the plastic film is composed of a plastic film having a certain thickness that fills the pores of 0 and covers the surface of the pores.

Figures 7 and 8 show that, as shown in Figures 4, 5 and 6, a ``Nexus'' stamped with a ``W'' is suitable for use as a side rail of a ladder, for example. It is shown embedded in a groove-shaped product.

In the recommended manufacturing configuration of plastic articles bearing markings according to the invention, as shown in FIGS. 1-3, the hot stamping unit 30'
and between the comb plates 11 and 12 below the supply lines of the reinforcing mat materials 8 and 9. As best shown in Figures 2 and 3, the imprint may be "Nexus" or other porous surface-forming reinforced plastic strip material having a large number of pores. A reinforcing plastic strip material 20 for forming the surface to be molded is wound onto a roll 31, fed continuously to the bottom of an idler roller 32, and passed under the carved stamping die 35 of the hot stamping unit 30'. do. The foil 33 from the foil supply roll 34 is passed in either direction, as desired, over the top of the surfacing reinforced plastic strip material 20 at the bottom of the hot stamping die 35, thereby forming the surfacing material. When the reinforced plastic strip material 20 is passed under the hot stamping die 35 and placed on the substrate, high pressure and high temperatures are applied by the hot stamping die 35 for a defined dwell time. When applied to the surfacing plastics strip material 20 by the press of the hot stamping unit 30', an indicia is stamped onto the surfacing reinforced plastics strip material 20. metal block 3
Flat hot stamping die 3 mounted on top of 6'
5 is shown. The timing of the strokes of the hot stamping unit 30' as well as the temperature of the hot stamping die 35 of the hot stamping unit 30' and the required downtime for stamping the surface-forming reinforced plastic strip material 20 are controlled from the control panel 40. However,
The control panel 40 includes, as shown, a power on switch 50, a corresponding signal light 50', a control panel fuse 51, an air cylinder head energization "on" light 52, an air cylinder head operation toggle switch 54, and a stop time control knob. 53, an air cylinder downlight 55, a toggle switch 56 for initiation of movement and movement mode, a heat indicator light 57 and a die temperature control knob 58.

As shown in FIGS. 2 and 3, to the left of the hot stamping unit 30' is a supply storage assembly 60 which is connected to the stamped surface forming reinforced plastic strip material 35'. But it passes after stamping. The supply storage assembly 60 is adapted to provide an accumulation of surfacing reinforced plastic strip material 20 supplied from the hot stamping unit 30' to provide a certain tolerance for downtime in stamping, thereby and stamped reinforced plastic strip material 3
5' is fed continuously and uniformly so as to contact the reinforced plastic laminate stock impregnated with the thermosetting synthetic resin material at the feed rate as described above. The supply storage assembly 60 consists of a support means 64 having spaced idle rollers 61 over which the stamped surfacing reinforced plastic strip material 35' runs. , is fed upwardly past idler rollers 62 and 66 mounted above the upper portion of the support means 64, at a feed rate of the surfacing reinforced plastic strip material 20;
As desired, the lower part of the impregnating tank 13 is continuously fed into contact with any desired surface of the wetted and squeezed reinforced plastic laminate stock (see FIG. 6). By adjusting the cylinder means 65, the roller 63 is raised or lowered to accumulate less or more surfacing reinforcing plastic strip material 20. Instead of using the hot stamping unit 30' of FIG.
The material 20 fed from 1 is fed at a rate compatible with the feeding of the pultruded reinforced plastic laminate stock, as shown in FIG. It is to be understood that the reinforced plastic laminate material can be contacted to provide a surface that is marked with the markings.

It should be understood that the imprint need not be placed on the outer surface of the molded reinforced plastic laminate material as shown, but can be placed on any surface thereof.

As shown, the position of the markings on the final product can be controlled by the timing of the application of the imprinted surfacing reinforced plastic strip material 20, and as shown in FIG. on top of the product, such as on a ladder rail, as illustrated in
carefully positioned between fittings such as brackets, so that the entire sign
Make it vivid and not blurry. However, if recommended, full-page markings or other markings may be used.

Here, in this specification, "reinforcing material"
When mentioned, it is to be understood that this term includes all materials that can be added to a material to improve the physical properties of this material.

In the present invention, the curing of the reinforced plastic laminate material is applied to the porous surface-forming reinforced plastic strip material so that the material oozes out of the reinforced plastic laminate material onto the patterns, markings, indicia, etc. applied to the porous surface-forming reinforced plastic strip material. Semi-transparent coating, etc. by curing of excess thermosetting synthetic resin material, or
Provides a transparent protective resin film.

It has also been described above that a reinforced plastic product having an indicia according to the invention is produced on one pultrusion line. However, it is understood that more than one pultrusion line can be operated sequentially and simultaneously, as shown in FIG. In this case, the recommended manufacturing equipment shown in FIG.
Means such as two hot stamping units may be operated like the hot stamping die described above, or means such as one hot stamping unit may be used operated in an alternating manner. I can do it. In both cases the pultrusion mechanism and hot stamping unit used are the same. Therefore, only one pultrusion mechanism and hot stamping unit have been described above.

Having thus described a reinforced plastic article bearing an indicia according to the invention with respect to the recommended equipment for its manufacture, there are many variations and extensions to the reinforced plastic article bearing an indication which depart from the gist of the invention. It is understood that what can be done without.

Effects of the Invention As described above, according to the present invention, a reinforced plastic product having a marking is made of coarse twine, reinforcing mat material, other additional reinforcing fiber materials, and surface forming material, and a thermosetting material impregnated therein. a reinforced plastic laminated material made of a synthetic resin material;
integrated with this is a porous surface-forming reinforced plastic strip material with high air permeability;
To provide a reinforced plastic product having an indicator consisting of a transparent plastic film having a certain thickness filling the pores of the porous surface-forming reinforced plastic strip material and covering the surface thereof. This is where you can see what you can do.

[Brief explanation of drawings]

1 is a plan view of an example of an apparatus for producing reinforced plastic products with markings according to the invention; FIG. 2 is a front view thereof; and FIG. 3 is a hot stamping press and a device cooperated therewith. 4 shows the recommended porous surface-forming reinforced plastic strip material and markings thereon; FIG. 6 shows the feeding and bonding of the marked porous surface-forming reinforced plastic strip material with the reinforced plastic laminate material, and FIG. 7 shows the material after forming and curing. FIG. 8 is a partial perspective view of a ladder showing a product in the shape of a ladder rail as an example of a plastic product having a marking of .
The figure is a partial front view of another example of apparatus for manufacturing reinforced plastic products with markings according to the invention. 6... Thread winding shaft stand, 7... Coarse twine, 8,9
... Reinforced mat material, 8', 9' ... Thread winding frame, 10
... Inlet end, 11, 12 ... Comb, 13 ... Impregnation tank, 14 ... Other additional reinforcing material, 14'
...Surface forming material, 15,15'...Spindle frame,
16... Support frame, 17... Squeezing device, 20... Reinforced plastic strip material for forming a porous surface with high air permeability, 22, 23... Rotating roller, 25... Forming station, 26 ……
Product, 27... Control device, 30'... High temperature stamping unit, 31... Roll, 32... Idle roller,
33...Foil, 34...Foil supply roller, 35...High temperature stamping die, 35'...Reinforced plastic strip material for forming the stamped porous surface, 36'...Metal block, 40...Control Panel, 60... Supply accumulation assembly, 61, 62,
66... Play roller, 63... Roller, 64...
Support means, 65... cylinder means.

Claims (1)

[Claims] 1. In a reinforced plastic product having markings, a reinforcing fiber material in the form of coarse twine or reinforcing mat material is laminated with another additional reinforcing fiber material by pultrusion, and this laminated material is laminated with another reinforcing fiber material. A slender reinforced plastic laminate material formed by impregnating a thermosetting synthetic resin material and then squeezing out the thermosetting synthetic resin material; Reinforced plastic strip material for forming porous surfaces with high air permeability stamped with an indicia; and Reinforced plastic strip for forming porous surfaces with high air permeability imprinted with said indicia. a protective plastic film having transparent through holes covering the upper surface of the material, said protective plastic film having transparent through holes being squeezed from said elongated reinforced plastic laminate material. , the heat seeped to the surface through the numerous pores present due to the porosity of the porous surface-forming reinforced plastic strip material with high air permeability imprinted on said surface. Reinforced plastic product having a marking characterized in that it is formed from a curable synthetic resin material. 2. A reinforced plastic product having an indicator according to claim 1, wherein the thermosetting synthetic resin material is a thermosetting synthetic resin material such as polyester, polyethylene, vinyl ester, phenol, or epoxy. 3. A reinforced plastic product having an indicator according to claim 1, wherein the reinforcing fiber material is glass fiber or polyester fiber. 4. Reinforced plastic product with markings according to claim 1, 2 or 3, wherein said porous surface-forming reinforced plastic strip material with high air permeability is comprised of a woven polyester fiber. .