The core production requirements for Cork Handbag (softwood handbag): FSC-certified softwood fabric + eco-friendly glue + precise cutting + anti-fraying treatment + special sewing + reinforced hardware + eco-friendly lining + comprehensive quality inspection. The entire process takes into account vegetarianism, environmental protection, durability, water resistance, and natural texture.
Raw Materials and Material Requirements (Most Critical)
1. Cork Fabric
Source: Portugal / Spain - Cork bark from cork oak trees, harvested by hand, once every 9-12 years, without felling the trees.
Thickness: 0.7-1.0mm, uniform without holes or mold spots.
Structure: Cork layer + organic cotton / recycled polyester backing, firmly bonded, no delamination.
Certifications: FSC Forest Certification, Vegan (Vegetarian), OEKO-TEX, free of formaldehyde, free of heavy metals.
Characteristics: Waterproof, stain-resistant, antibacterial, hypoallergenic, unique texture.
2. Supplementary Materials (Fully Environmentally Friendly Compatible)
Inner Liner: Organic cotton, canvas, recycled polyester, free of fluorescent agents.
Adhesive: Water-based eco-friendly glue (without solvents), natural latex, resistant to high temperatures, does not yellow.
Hardware: Brass / Bronze, stainless steel, rust-proof; magnetic clasps, smooth and unobstructed zippers.
Thread: High-strength nylon / cotton thread, matching the softwood color, resistant to pulling and wear.
Cutting and Shaping Requirements
Pre-shrinking treatment: The softwood fabric is pre-shrunk by low-temperature ironing (110–120℃), with a shrinkage rate of ≤ ±0.5%, to avoid deformation of the finished product.
Cutting accuracy
Tools: Laser cutting machine / High-precision electric shears, with sharp cutting edges and anti-fray protection.
Error: The size error of the cut pieces **≤ ±0.1mm**, the edges are smooth and without frayed edges.
Edge treatment (must be done)
Burnishing / Edge sealing: Low-temperature light burning or water-based edge sealing paint to prevent chipping and frayed edges.
Round corner reinforcement: Thin glue + hot pressing at the corner to prevent cracking and peeling.
Sewing Process Requirements (For Cork)
Equipment and Needles
Sewing Machine: Flat sewing machine + synchronous feeding (Walking Foot), with anti-slip fabric function.
Needles: Leather needles / 90/14 size, sharp needle tip, without damaging the cork.
Needle Spacing and Stitch
Needle Spacing: 1.8–2.2mm (8–10 stitches / inch), too tight is prone to cracking, too loose is not secure.
Stitch: Flat sewing + double-line lockstitch, no exposed thread heads or glue on the inside.
Key Areas Reinforcement
Handles / Shoulder Straps: Double-layer cork + reinforced inner lining + backstitch reinforcement, load-bearing ≥ 5kg.
Bag Corners / Corners: Triangular needles / reinforced stitching, to prevent pulling and cracking.
Environmental Protection and Quality Standards
Environmental Regulations
Production: Primarily manual operation, low energy consumption, no plastic packaging, all recyclable materials.
Emissions: No harmful wastewater / exhaust gas, in compliance with EU environmental standards.
Quality Inspection (Full Inspection)
Appearance: Natural texture, no scratches, no stains, uniform edge sealing.
Durability: Handle/shoulder strap tensile test ≥ 5kg/10s, no cracking.
Waterproof: No water penetration after 30 seconds of water spraying test, can be cleaned with a damp cloth.
Hardware: No malfunction after 500 opening/closing cycles, rust-proof and color-fast.