45micron Clear Bopp Jumbo Roll Tape
OPALUS PACK is a manufacturer of 45micron clear bopp jumbo roll tape for converters producing transparent carton sealing tape. The 45um value refers to the total coated thickness: clear BOPP film backing plus acrylic adhesive coating, not bare film thickness. This clear coated BOPP jumbo roll is supplied for slitting and rewinding, with attention to clarity after unwind, coating consistency, stable tension, and clean edge performance.
- Total thickness: 45um coated structure
- Color: clear transparent appearance
- Backing: clear BOPP film
- Adhesive: water based acrylic adhesive
- Common size: 1280mm x 4000m
- Use: clear carton sealing tape conversion
Product Applications
Product Overview
This 45micron clear bopp jumbo roll tape is made for converting work, not for use as uncoated BOPP film or finished small roll tape. The 45um structure combines BOPP film support with an acrylic adhesive layer. In production, this balance matters because two rolls can both be marked 45um but perform differently if film gauge, adhesive coat weight, or coating consistency is not controlled.
OPALUS PACK produces this clear BOPP adhesive jumbo roll for customers who need clean transparent tape after slitting. During sample review, we unwind the roll and check for cloudy coating, visible streaks, early yellowing, uneven tack, and roll hardness changes. For a 1280mm jumbo roll, the usable coating width is commonly around 1260mm, depending on edge trimming and coating layout. This helps converters estimate output and edge waste before bulk production.
Benefits
- 45um total coated thickness balances film support and adhesive performance.
- Typical thickness tolerance around +/-2um helps reduce variation between slit rolls.
- Clear BOPP backing keeps carton printing, labels, and barcodes visible.
- Low haze visual check helps avoid cloudy tape after unwinding and application.
- Coating uniformity check helps reduce dry strips, edge bleeding, and uneven tack.
- Stable unwind tension supports smoother rewinding with fewer wrinkles or telescoping issues.
- Clean slitting edge reference helps reduce film tearing, adhesive stringing, and rough roll sides.
- Carton flap rebound observation helps confirm bonding on new and recycled corrugated cartons.
What makes 45mic clear BOPP jumbo roll tape suitable for transparent tape converting?
For tape converters, 45mic is not only a thickness label. A good 45mic clear adhesive tape jumbo roll needs enough film body for smooth slitting, enough adhesive for carton sealing, and a clean transparent look after rewinding. If the film-to-adhesive balance is poor, the finished tape may look acceptable at first but later show weak bonding, edge bleeding, or unstable roll hardness. Before bulk conversion, OPALUS PACK recommends checking thickness tolerance, usable coating width, low haze appearance, trial slitting edges, and carton flap rebound on both new and recycled corrugated board.
TDS / Technical Data Sheet
| Item | Typical Value |
|---|---|
| Product Type | Clear coated BOPP jumbo roll for transparent tape conversion |
| Total Thickness | 45um |
| Thickness Tolerance | +/-2um typical factory test range |
| Film Backing | Clear BOPP film backing |
| Adhesive Type | Water based acrylic adhesive |
| Jumbo Roll Width | 1280mm, 1270mm, 1620mm customizable |
| Usable Coating Width | Around 1260mm for 1280mm roll, subject to edge trimming |
| Roll Length | 4000m standard, 3000m-6000m customizable |
| Appearance | Clear, low haze visual reference, reduced yellowing observation |
| Peel Adhesion | 5.0-7.0 N/25mm typical reference |
| Holding Power | >=24h typical reference |
| Tensile Strength | >=25 N/cm typical reference |
| Elongation | 120%-180% typical reference |
| Coating / Slitting Check | Tack consistency, clean edge reference after trial slitting |
| Storage Condition | 20-30 C, dry indoor storage, avoid direct sunlight |
Applications
- Slitting into 48mm, 50mm, and 72mm transparent carton sealing tape.
- Rewinding into hand rolls for packaging distributors and converting plants.
- Converting into machine rolls for semi-automatic and automatic carton sealing.
- Sealing export cartons where labels, printed marks, or barcodes must remain visible.
- Clear carton sealing tape conversion where clean edges and smooth unwind are important.
How do slitting edge, unwind tension, and coating uniformity affect finished tape quality?
A roll may look acceptable from the outside, but its real performance appears during slitting and rewinding. If unwind tension is unstable, finished rolls may show loose winding, wrinkles, telescoping, or uneven roll hardness. If the adhesive coating is uneven, some slit rolls may feel dry while others show excess tack, edge bleeding, or adhesive buildup on blades. OPALUS PACK checks trial slitting, edge trimming, unwind behavior, roll hardness, and coating appearance before confirming bulk production.
FAQ
Is 45um the film thickness or total thickness?
It is the total coated thickness. The value includes BOPP film backing and acrylic adhesive coating, with a typical factory tolerance around +/-2um.
Why does usable coating width matter?
Usable coating width affects finished roll output and edge waste. A 1280mm jumbo roll may provide around 1260mm usable coating width after edge trimming.
How should clear appearance be checked?
Check the roll after unwinding. Useful checks include low haze review, coating streak observation, yellowing reference, and carton print visibility.
What should be tested during sample conversion?
Trial slitting, clean edge condition, unwind tension, roll hardness, adhesion on corrugated board, holding power reference, and carton flap rebound should be reviewed before bulk specifications are confirmed.