Focused on electronic-grade PI film,
and on making substitution real
Daji focuses on the R&D, manufacturing and sales of electronic-grade high-performance PI film, with import substitution as its core mission. Through molecular-structure innovation and re-formulated monomers, the company develops films with stronger functionality and better cost, breaking the technology and price barriers of overseas high-end materials.
Beyond that, Daji keeps exploring multi-functional films such as heating and conductive grades, moving them from lab to production.
PhilosophyOPERATING PRINCIPLE
Integrity · Cooperation
Harmony · Mutual benefit
Culture
Do well by yourself when small;
do good for the world when able.
ROADMAPCapacity roadmap
About 1,500 t/y of high-end electronic-grade PI film at full capacity, with annual output value above ¥300M.
10 specialized production lines, with annual output value above ¥1B at full capacity.
HISTORYA century of PI — and the part China was missing
High-end PI was long blockaded, with roughly 90% of the market monopolized. The timeline below is the industry, and the distance Daji intends to close.
- 1908DuPont first synthesizes polyimide
- 1955First PI patent by DuPont
- 1960DuPont Kapton film launched
- 1978UBE high-modulus PI
- 1995Kaneka electronic-grade PI
- 2007Mitsubishi Gas transparent PI
- 2008SKC electronic-grade PI
- 2015Kolon transparent PI
- 2018SKC MPI
Need samples or a datasheet?
Full parameters, test reports and substitution tables. Samples dispatched within 48 hours.