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Carrying band material and carrying band thereof

A technology of carrier tape and raw materials, applied in paper/cardboard layered products, electrical components, packaging, etc., can solve problems such as corrosion of electronic components

Active Publication Date: 2005-02-16
DAIO PAPER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the material whose main component is slurry fiber has the problem of corrosion of electronic components such as surface mount parts to be loaded.

Method used

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  • Carrying band material and carrying band thereof
  • Carrying band material and carrying band thereof
  • Carrying band material and carrying band thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] For the surface layer and the back layer, a pulp slurry composed of 50% of coniferous bleached kraft pulp (NBKP) and 50% of broadleaf bleached kraft pulp (LBKP) was used, adjusted to a Canadian Standard Freeness (CSF) of 450cc. Slurry, the middle layer uses pulp slurry composed of NBKP25%, LBKP25%, and food packaging waste paper slurry 50% to adjust to CSF350cc slurry.

[0062] In addition, 5 parts of anionic polyacrylamide paper strength enhancer (trade name: Ha-Maid B-15, manufactured by Harima Chemicals Co., Ltd.), tackifier ( Product name: Alcosex SR, manufactured by Meisei Chemical Industry Co., Ltd.) 0.4 parts. Furthermore, no aluminum sulfate was added.

[0063] The carrier tape material with a three-layer structure is prepared by using the cylinder multi-layer paper machine in combination with the above. At this time, the moisture content of the wet paper in the portion immediately before pressing was 76.5%. The surface pH of the resulting carrier material wa...

Embodiment 2- Embodiment 5

[0071] A carrier tape material was produced in the same manner as in Example 1, and the test was carried out in the same manner, except that the compounding amount of the paper strengthening agent or tackifier was changed, or the moisture content of the wet paper in the part to be squeezed.

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Abstract

The invention provides a carrier tape pasteboard base material mainly comprising a pulp material where electronic parts or the like which are surface mounted parts loaded do not deteriorate due to corrosion. In the carrier tape pasteboard base material that has a multilayered combination structure provided with a plurality of layers and each layer mainly comprises the pulp material, a pH on the surface is 6.0 to 8.0, a residual sulphate ion quantity is less than 500 ppm, a paper strength reinforcing agent of 1.0 to 8.0 pts.wt. and a thickener mainly comprising ethylene oxide of 0.1 to 1.0 pts.wt. are blended to the pulp material of 100 pts.wt. in each of the plurality of the layers, and a moistened paper regain just before pressing the parts is controlled to 75 to 80 wt%.

Description

[technical field] [0001] The present invention relates to a carrier tape material and a carrier tape used for loading electronic components, and more specifically, to a carrier tape material and a carrier tape that do not corrode and degrade electronic components to be loaded. [Background technique] [0002] In recent years, various electronic devices have been manufactured using various technologies for automatically mounting various electronic components on circuit boards. Among them, the technology of directly mounting various surface mount components on the surface of a circuit board, so-called surface mount board technology, has been significantly developed. [0003] In this surface mounting, a carrier tape formed of a carrier tape material is generally used. The carrier tape material is subjected to processing such as forming a cavity portion for accommodating surface mount components, not only to accommodate the surface mount component in the cavity portion, but also...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B29/00B65D73/02H05K13/02
Inventor 山川一秀水泽义树村上义晃
Owner DAIO PAPER CORP