High-performance adhesive for paper tubes VINYBLAN 1540 series
[Features] 1) Offers favorable adhesive properties even with half the coating volume. 2) Offers favorable adhesive properties regardless of the paper qualities of the paper tube core paper to be used. 3) Can improve the pressure capacity of the paper tube. 4) Excellent low-temperature viscosity stability (ideal for work during winter).
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1.Emulsion physical properties (representative values)
| VINYBLAN 1540K | VINYBLAN 1570K (our company’s general product) | |
|---|---|---|
| Appearance | Milky white emulsion | Milky white emulsion |
| Main ingredient | Vinyl acetate resin | Vinyl acetate resin |
| Evaporation residue (%) | 31.0 | 40.0 |
| Viscosity (mPa•s) | 1,300 | 1,300 |
| pH | 4.0 | 4.0 |
| MFT (°C) | 0 | 0 |
| Relationship between temperature and viscosity 5℃ 15℃ 35℃ |
2,820 2,100 1,000 |
2,640 1,820 950 |
| Low-temperature viscosity stability 5℃,1week 5℃,2week 5℃,3week 5℃,4week |
3,180 3,540 3,870 4,120 |
6,850 7,950 9,100 9,390 |
Test method
- Evaporation residue: Test piece (1g) in a circular drying machine at 105°C. According to JIS K6839.
- Viscosity: BH-type viscometer, 25°C, 20rpm. According to JIS K6838.
- pH: Glass electrode method. According to JIS K6837.
2. Adhesive properties, water-resident adhesion, pressure capacity data
| VINYBLAN 1540K | VINYBLAN 1570K (our company’s general product) | |
|---|---|---|
| Adhesive properties (23°C, coating volume: 18g/m2) Setting time (sec) Open time (sec) |
8～9 36～39 |
- - - |
| Adhesive properties (23°C, coating volume: 36g/m2) Setting time (sec) Open time (sec) |
7～8 60～63 |
10～11 54～57 |
| Water-resistant adhesion (paper failure ratio) Coating volume: 23g/m2 Coating volume: 50g/m2 |
80%以上 80%以上 |
30～60% 80%以上 |
| Pressure capacity (kg/70mm) Coating volume: 23g/m2 Coating volume: 50g/m2 |
26.9 27.2 |
24.7 25.8 |
Test method
- Adhesive properties: C-grade base paper/craft paper.
- Water-resistant adhesion: C-grade base paper, room-temperature water, 24 hours.
- Pressure capacity: 0.7mm, C-grade base paper, six ply.
3. Paper tube strength data (from paper tube production sample)
| VINYBLAN 1540K | VINYBLAN 1570K (our company’s standard product) | |
|---|---|---|
| Length (mm) Inside diameter (mm) Thickness (mm) |
35 75 2.5 |
|
| Strength (kg/35mm) | 10.23 9.98 10.12 10.33 10.18 9.87 |
9.02 8.86 9.13 9.05 8.97 9.11 |
| Average value (kg/35mm) | 10.12 | 9.02 |
Compared to 1570K (our company’s general product), paper tubes produced with VINYBLAN 1540K have a roughly 10% greater paper tube strength