JP2003252530A - Embossed carrier tape with material identifying means and recovery system therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an embossed carrier tape suitable for recovery, a recovery system therefor and a bottom sheet constituent which have little degradation of quality performance even if a recycle material is used as a raw material. <P>SOLUTION: The embossed carrier tape includes a material identifying means which shows that the bottom sheet is constituted of one of various types of resins. Preferably, the material identifying means is an identifying mark, a recycle mark or a laser mark printed with a stamper. The material identifying means sorts out and collects the respective embossed carrier tapes of which the bottom sheets are constituted of one of various resins from embossed carrier tape waste groups used for mounting. The second identifying means is capable of preventing the mixing of different materials. The available second classifying means is a gravity difference classifying method, a mechanical classifying method, and a near-infrared ray classifying method. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embossed carrier tape used for transporting and storing electronic components such as ICs, which is suitable for recovery after use by a mounting machine, and a recycling recovery system for the same.

[0002]

2. Description of the Related Art Conventionally, a manufacturer of ICs and electronic components has been one of the packaging forms for transporting and storing electronic components such as ICs.
As a result, a molding maker has a bottom sheet of various resins processed into a pocket shape for electronic parts and embossed carrier tape, and after inserting the electronic parts into the pocket, it is a lid material film consisting of a multilayer structure with easy peeling property when peeling. We manufacture electronic parts by making cover tapes that are sealed at room temperature or heat and covered.

However, in the surface mounting process of the mounting maker, which is the final user, since the electronic components inserted in the embossed carrier tape made of the bottom sheet of various resins are used, the embossed carrier tape after being used for mounting is It is cut into a certain length and collected in a waste collection box, but it is not sorted by resin and has poor recyclability, so it is incinerated and landfilled as industrial waste.

However, the embossed carrier tape is PVC
Some of them are made of sheets, and as is well known, it has been pointed out that the dioxin problem when incinerating wastes containing PVC is caused. Therefore, also from the viewpoint of environmental protection, it has been desired to establish a technique for efficiently separating and collecting the embossed carrier tapes used after mounting for mounting, which is generated in a large amount by the mounting maker, and recycling each tape for each resin.

[0005]

In view of such a situation, the present invention efficiently separates wastes of an embossed carrier tape composed of various kinds of bottom sheet such as PVC, PS, PC, PET, PP, A bottom sheet that separates the embossed carrier tapes of different raw materials from the collected embossed carrier tapes and collects and recycles only each of the various resins. Provided are a structure, an embossed carrier tape suitable for recovery, and a recovery system for the same.

[0006]

SUMMARY OF THE INVENTION The present invention is an embossed carrier tape having a raw material identifying means for indicating that the bottom sheet is each of various resins. The raw material identifying means is an identification mark, It is preferably a recycle mark or a laser mark printed with a stamper. In the present invention, the raw material identifying means selects and collects only the respective embossed carrier tapes whose bottom sheet is made of various resins from the waste group of the embossed carrier tapes used after mounting, and the second separation. By the means, it is possible to prevent the mixing of the different raw materials. As the second sorting means, a specific gravity difference sorting method, a mechanical sorting method, a near infrared ray sorting method, or the like can be used. Further, according to the present invention, after the embossed carrier tape waste group after being used for mounting, only the respective embossed carrier tapes whose bottom sheet is made of various resins are selected and collected by the raw material identification means, and then the embossed carrier tapes are collected. It is a method of coarsely crushing and adding virgin resin to injection molding or to make a bottom sheet for embossed carrier tape. Especially when making a bottom sheet, use a multilayer structure of three or more layers and use it as an intermediate layer. In this way, a product with less deterioration in quality performance can be obtained, and the collected embossed carrier tape can be effectively reused. In this way,
The second separation means can prevent the mixing of different raw materials other than the various resins, and can be carried out. Further, only the respective embossed carrier tapes whose bottom sheet is made of various resins may be sorted and collected by the second sorting means without using the raw material identifying means. Also in this case, the selected embossed carrier tape is roughly crushed, and a virgin resin is added to form a bottom sheet for injection molding or an embossed carrier tape. Particularly, in the case of a bottom sheet, a multi-layered structure having three or more layers is formed. By using it for the intermediate layer, a product with less deterioration in quality performance can be obtained, and the collected embossed carrier tape can be effectively reused.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention is an embossed carrier tape in which a bottom sheet is made of various resins, and has identification means for indicating that the bottom sheet is each of various resins. As the identification means, an identification mark, a recycle mark, a laser mark printed with a stamper, or the like can be used. Since the embossed carrier tape used for mounting has these raw material identification means, each embossed carrier whose bottom sheet is made of various resins can be more easily visually observed from the waste group of embossed carrier tape waste used for mounting. Can be sorted into tape.

In a second aspect of the present invention, since the embossed carrier tape which has been used for mounting and which has been substantially selected by the above-mentioned raw material identifying means is separated and collected with higher accuracy, the second separating means is provided. I have. Examples of the second sorting means include a specific gravity difference sorting method, a mechanical sorting method, a near infrared ray sorting method, and the like. The specific gravity difference method aims to separate by the specific gravity difference of the bottom plastic sheet used for embossed carrier tape waste, and the difference in the specific gravity of the plastic sheet is obtained by centrifuging the embossed carrier tape waste group. Thus, the embossed carrier tape can be sorted according to each raw material resin of the bottom sheet.

In the mechanical separation method, several known methods can be used. As an example, the identification mark used as the above-mentioned raw material identification means contains a component that can be mechanically separated for each resin, so that the plastic sheet of the bottom material used for embossed carrier tape waste is made of various resins. It becomes possible to easily select the respective embossed carrier tapes. Further, in the near-infrared ray fractionation method, each can be identified by comparing the specific absorption spectrum patterns found in various resins by the absorption spectrum spectroscopy using near-infrared rays.
If the second identification means can be implemented with high accuracy and high speed, the bottom sheet should be sorted and collected into each embossed carrier tape made of various resins without using the above-mentioned raw material identification means. You can In the present invention, the plastic sheet of the separated bottom material is sorted into each embossed carrier tape made of various resins, and then coarsely crushed,
You can also add virgin resin to make injection molding or bottom sheet for embossed carrier tape,
In particular, when a bottom sheet is used, a multi-layer structure having three or more layers can be used, and by using it as an intermediate layer, it is possible to obtain a product with little deterioration in quality performance.

[0010]

Example 1 Example 1 A recycle mark corresponding to various resins is produced by transfer from a mold on the back surface of the pocket bottom of an embossed carrier tape molded from a bottom sheet of various resins having a thickness of 0.3 mm. It was possible to visually separate the various resins from the waste embossed carrier tape waste group used after mounting.

<Embodiment 2> An embossed carrier tape molded from a bottom sheet of various resins having a thickness of 0.3 mm is used by mounting a mark on the back surface of the pocket bottom with a color ink corresponding to each resin. It was possible to easily visually separate various resins from the waste embossed carrier tape waste group after use.

Example 3 One ton of embossed carrier tape waste used for mounting was collected from the mounter manufacturer. This was visually separated and collected for each type of resin according to the recycle mark or the color printed on the bottom surface of the pocket bottom. The separated and collected materials were each subjected to a centrifuge to remove the mixed foreign material embossed carrier tape. Yield is 9
It was 5%. It was possible to obtain the same kind of resin with a purity of 100% for each of the separated resins.

<Embodiment 4> Of the various resins classified in Embodiment 3, a PS-based resin is polymer-alloyed with a virgin ABS resin at a ratio of 1: 1 to form a 5-layer structure (conductive layer). / Virgin ABS layer / 50% recovery material layer / Virgin ABS layer / Conductive layer = 5: 20: 50: 2
A conductive PS sheet having a thickness ratio of 0: 5 was produced, and an embossed carrier tape was produced using the sheet as a bottom sheet.
It was able to be used without any problems like the normal embossed carrier tape.

[0014]

By providing the embossed carrier tape with the raw material identification means for various resins, it is possible to easily separate and collect the various resins from the waste embossed carrier tape waste group that has been used for mounting. An embossed carrier tape recovery system with excellent recyclability can be obtained.

Claims (14)

[Claims] 1. An embossed carrier tape having a raw material identifying means for indicating that the bottom sheet is made of various resins. 2. The embossed carrier tape according to claim 1, wherein the raw material identification means is an identification mark. 3. The embossed carrier tape according to claim 1, wherein the material identification means is a recycle mark. 4. The embossed carrier tape according to claim 1, wherein the raw material identifying means is a laser mark printed by a stamper. 5. An embossed carrier tape collecting system that separates and collects a bottom sheet into various resins by a raw material identification means from a group of waste embossed carrier tapes that have been used in a mounting machine. 6. The waste embossed carrier tape waste is collected from the waste embossed carrier tape waste group after being used in a mounting machine by a raw material identification means, and then the collected embossed carrier tape waste is separated into a second sort. An embossed carrier tape collecting system characterized in that the mixed embossed carrier tape other than various resins is removed by means. 7. An embossed carrier tape, wherein mixed different raw material embossed carrier tapes other than the respective resins are removed from the waste embossed carrier tape waste group after being used in a mounting machine by a second separating means. Recovery system. 8. The embossed carrier tape collecting system according to claim 6, wherein the second sorting means is a specific gravity difference sorting method. 9. The embossed carrier tape collecting system according to claim 6, wherein the second separating means is a mechanical separating method. 10. The embossed carrier tape collecting system according to claim 6, wherein the second separating means is a near infrared ray separating method. 11. A bottom sheet is separated into various resins by a raw material identification means from a waste group of embossed carrier tape waste after being used in a mounting machine, and the embossed carrier tape is coarsely crushed to obtain various virgin sheets. A molding and sheet method, characterized by adding a resin to form a bottom sheet for injection molding or embossed carrier tape. 12. The waste embossed carrier tape waste is collected from the waste embossed carrier tape waste group that has been used in the mounting machine by the raw material identification means, after separating and collecting the bottom sheet into various resins. After further removing the mixed different raw material embossed carrier tape other than various resins by the sorting means, the embossed carrier tape is roughly crushed and various virgin resins are added to form an injection molding or bottom sheet for the embossed carrier tape. Characterizing forming and sheeting method. 13. A bottom material sheet is separated into various resins by a raw material identifying means from a waste group of embossed carrier tape waste after being used in a mounting machine, and the embossed carrier tape is coarsely crushed to obtain various virgin materials. 1 of bottom sheet for multi-layered embossed carrier tape by adding resin
Sheet method characterized by having more layers 14. The waste embossed carrier tape waste is collected from the waste embossed carrier tape waste group after being used in the mounting machine by the raw material identification means, after separating and collecting the bottom sheet into various resins. After further removing the mixed different raw material embossed carrier tape other than the various resins by the sorting means, the embossed carrier tape is coarsely crushed, and various virgin resins are added to form one or more layers of the bottom sheet for the embossed carrier tape having a multilayer structure. The seating method characterized by