product_launch

Regarding the Start of Mass Production of High-Speed Seal Compatible Cover Tape 'Sumilite® CSL-Z7304'

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Kirishima ReiEditor-in-Chief, AI News Focus: structuring JP/TW corporate news & AEO

Published Apr 2, 2026 10:38 PM ・ Updated Jun 16, 2026 9:41 PM ・ 4 min read ・ Source: PR TIMES

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Regarding the Start of Mass Production of High-Speed Seal Compatible Cover Tape 'Sumilite® CSL-Z7304' — Image: PR TIMES

⚡ Key Points

Sumitomo Bakelite has commenced mass production of 'Sumilite® CSL-Z7304', a high-speed seal compatible cover tape that provides sufficient peel strength even with short sealing times.
Designed for ultra-small electronic components, it offers high reliability and is difficult to tear, contributing to increased production efficiency.
The tape also features excellent transparency for easy inspection of packaged components.

Sumitomo Bakelite has commenced mass production of 'Sumilite® CSL-Z7304', a high-speed seal compatible cover tape that provides sufficient peel strength even with short sealing times. Designed for ultra-small electronic components, it offers high reliability and is difficult to tear, contributing to increased production efficiency. The tape also features excellent transparency for easy inspection of packaged components.

PRIMARY SOURCE PR TIMES View source Distributor: PR TIMES
Published: Apr 2, 2026

Sumitomo Bakelite Co., Ltd. (Headquarters: Shinagawa-ku, Tokyo, President and CEO: Shinichi Kajiyashi) has commenced mass production of 'Sumilite® CSL-Z7304', a high-speed seal compatible cover tape that provides sufficient peel strength even with short sealing times*1. It is designed for ultra-small electronic components that require reliable sealing in a short time, and features high reliability, being difficult to tear even with a 4mm width carrier tape (cover tape width: 2.6mm).

*1 Sealing time: Indicates the time until the cover tape and carrier tape adhere.

Development Background

In recent years, with the spread and increased performance of smart devices, electronic components are becoming smaller and more numerous, driving demand for further production efficiency. Consequently, cover tapes for transporting electronic components require thinner widths to accommodate ultra-small parts and high-speed sealing capabilities to enable faster component loading onto carrier tapes.

Features of Sumilite® CSL-Z7304

This product optimizes the sealant layer design, providing sufficient peel strength even with short bonding times, thus contributing to faster customer processes and improved productivity. Furthermore, by adopting a tough material, it meets the JIS standard (C0806-3) requirement of a breaking strength of 10N≦ for 4mm width carrier specifications (cover tape width: 2.6mm), making it resistant to tearing. Additionally, it boasts excellent transparency, making packaged electronic components and semiconductors easy to see and minimizing obstruction of camera inspections.

Sumilite® CSL-Z7304

Our company offers a wide range of products to solve packaging challenges arising from the ongoing miniaturization of components and to address customer concerns. If you have any packaging-related issues, please do not hesitate to contact us.

Inquiries regarding this matter

Sumitomo Bakelite Co., Ltd. Film & Sheet Sales Division, Industrial Film Sales Department TEL: 03-5462-4140

Inquiry form: https://inquiry.sumibe.co.jp/m/j_filmsheets_carrier-tape

FACT BOX

Source: PR TIMES
Category: product_launch

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Editorial log (Published → Collected → AI analysis → Published: transparency timeline)›

Announced　Apr 2, 2026 10:38 PM — Distributor PR TIMES
Collected　Apr 2, 2026 7:38 PM
AI structured & analyzed　Apr 17, 2026 11:00 AM
Desk-reviewed & published　Apr 2, 2026 10:38 PM

FAQ

What is the name of the new cover tape that Sumitomo Bakelite has started mass-producing for high-speed sealing applications?

Sumitomo Bakelite has started mass production of 'Sumilite® CSL-Z7304', a high-speed seal compatible cover tape designed for ultra-small electronic components.

Which company has initiated mass production of the Sumilite® CSL-Z7304 cover tape and where is its headquarters located?

Sumitomo Bakelite Co., Ltd. has initiated mass production of Sumilite® CSL-Z7304, and its headquarters is located in Shinagawa-ku, Tokyo.

What specific feature of Sumilite® CSL-Z7304 ensures sufficient peel strength despite short sealing times?

Sumilite® CSL-Z7304 features an optimized sealant layer design that provides sufficient peel strength even with short bonding times, enhancing production efficiency.

What mechanical strength standard does Sumilite® CSL-Z7304 meet for a 4mm width carrier tape with a 2.6mm cover tape?

Sumilite® CSL-Z7304 meets the JIS C0806-3 standard requiring a breaking strength of 10N or higher for a 4mm width carrier tape using a 2.6mm cover tape.

How does the transparency of Sumilite® CSL-Z7304 benefit the inspection process during electronic component packaging?

The excellent transparency of Sumilite® CSL-Z7304 makes packaged electronic components and semiconductors easy to see and minimizes obstruction during camera inspections.

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Washin AI News Desk“Regarding the Start of Mass Production of High-Speed Seal Compatible Cover Tape 'Sumilite® CSL-Z7304'”AI News by Washin Village（和心村）, Apr 2, 2026. https://aeo.washinmura.jp/ai/sumibe-co-jp/en/news/2026-04-17-news-s4tupq

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