Solutions

Bespoke Kraft String-and-Washer Envelopes for Premium Documentation

 

The Design Concept: Organic Professionalism and Timeless Security

In an era of digital saturation, the physical exchange of documents requires a vessel that conveys trust and heritage. Our bespoke string-and-washer envelopes are designed for brands that value tactile prestige and reusable functionality. Crafted from high-density, unbleached long-fiber kraft paper, these envelopes offer an organic minimalist aesthetic while providing a heavy-duty shield for sensitive contracts, portfolios, or luxury marketing materials.

 

Artistic Details & Engineering Excellence

Every envelope is engineered to withstand the rigors of global transit. We utilize a 350GSM reinforced kraft board that provides a vertical rigidity capable of protecting contents against bending and creasing. The iconic string-and-washer closure is tension-tested to ensure secure fastening over hundreds of uses. With a precision-folded gusset offering a 25mm expansion capacity, this solution can comfortably house up to 150 sheets of premium paper without compromising the structural silhouette.

 

Sustainable Luxury & Global Integrity

At Starmi, we believe that longevity is the ultimate form of sustainability. Unlike single-use adhesive envelopes, our string-tie design encourages multiple reuses, drastically reducing corporate waste. All materials are FSC-certified and processed using EUDR-compliant methods, ensuring your brand adheres to the highest environmental standards in Europe and North America.

 

★  Design Style:Vintage Industrial / Organic Minimalist 

★  Key Feature:Reusable String-and-Washer Tie & Reinforced Expandable Gusset 

★  Processing:High-Precision Die-Cutting & Tension-Reinforced Eyelet Riveting 

★  Compliance: FSC Certified, 100% Recyclable, EUDR Traceable

Your Global Packaging Partner

Direct Access to Premium Manufacturing & Sustainable Solutions

Strategic Manufacturing & Operations Center (China HQ)


Head of Global Supply Chain: Michelle Liu

Priority Contact Email: Michelle@qdstarmi.com

Service Promise: Direct executive-level communication with a guaranteed 2-4 hour response time.

Production Base 1 (Qingdao): Baotuo Industrial Park, No. 999 Fengjin Road, Chengyang District, Qingdao, Shandong, China 266112.

Production Base 2 (Guangzhou): 436 Dongjiagang Road, Liwan District, Guangzhou, Guangdong, China 510370.

International Sales & Local Support Offices

 

Europe Sales & Support OfficeParis

Address: 3B Avenue du Président Franklin Roosevelt,94600 Choisy-le-Roi, Paris Region, France.

Email: michel.chu@qdstarmi.com

 

Korea Sales & Support OfficeSeoul

Address: 15-11, Hoenamu-ro 13ga-gil, Yongsan-gu,Seoul, Republic of Korea 04344.

Email: Daniel@qdstarmi.com

© 2025 Starmi Packaging Co., Ltd. All Rights Reserved.