40gsm Single Side Glossy Yellow Kraft Paper for Envelopes and Lightweight Shopping Bags
Product Details
| Basis Weight: | 40 G/m² | Thickness: | 0.05–0.07 Mm |
|---|---|---|---|
| Breaking Length: | ≥6000 M | Smoothness: | 5–20 S |
| Moisture Content: | 8.0±2.0% | Water Absorption: | ≤30 G/m² |
Product Description
This 40 g/㎡ single‑side glossy yellow kraft paper is the entry grade for office stationery and light retail packaging. The glossy front accepts flexo printing for addresses or logos, while the rough back ensures secure gluing. High folding endurance (≥1000 double folds longitudinal) makes it ideal for envelope flaps and bag bottoms.
Parameter Table| Parameter | Unit | Value |
|---|---|---|
| Basis Weight | g/m² | 40 (±2.5) |
| Thickness | mm | 0.055‑0.065 |
| Bursting Strength | kPa | ≥150 |
| Longitudinal Tear Strength | mN | ≥500 |
| Water Absorption (60s) | g/m² | ≤30 |
| Delivery Moisture | % | 8.0±2.0 |
| Folding Endurance (Longitudinal) | double folds | ≥1000 |
Softwood (70‑85%) + hardwood (15‑30%) sulfate pulp. Low beating (25‑35°SR). AKD sizing 0.2‑0.5%. Fourdrinier machine at 300‑800 m/min. Pressing, multi‑cylinder drying (105‑115°C). Single‑side soft calendering (80‑100°C, 50‑100 kN/m). No filler to maintain purity. Finished roll or sheet.
Applications & Advantages by Category-
Envelopes – Glossy side prints return addresses; rough side glues securely.
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Lightweight Shopping Bags – Small retail bags for bakery, cosmetics, or gifts.
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File Bags – Document storage with flap closure; tear‑resistant.
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Exercise Book Covers – Durable yet lightweight; natural yellow aesthetic.
– 40gsm combines printability, folding endurance, and water resistance for daily office and retail use.
Product Highlights
This 40 g/㎡ single‑side glossy yellow kraft paper is the entry grade for office stationery and light retail packaging. The glossy front accepts flexo printing for addresses or logos, while the rough back ensures secure gluing. High folding endurance (≥1000 double folds longitudinal) makes it ideal ...
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