Flux
An aggregated cellulose is provided that includes massive cellulose and fibrous cellulose mixed together. The massive cellulose is fibrous and has a length of from 1 μm or more to less than 1 mm. The fibrous cellulose has a length of from 1 nm or more to less than 1 μm. The aggregated cellulose can contain from 400 ppm or more to 10,000 ppm or less of the massive cellulose. The aggregated cellulose can contain a solvent, a rosin-based resin, and an activator.
1 . A flux comprising microfibrillated cellulose (MFC) in which fibrous cellulose having a length of 1 μm or more and less than 1 mm and fibrous cellulose having a length of 1 nm or more and less than 1 μm are mixed.
2 . The flux according to claim 1 , wherein 400 ppm or more and 10,000 ppm or less of the microfibrillated cellulose (MFC) is contained.
3 . The flux according to claim 1 , further comprising a solvent, a rosin-based resin, and an activator.
4 . The flux according to claim 2 , further comprising a solvent, a rosin-based resin, and an activator.