How are the envelopes sealed?

Each envelope features a self-sealing adhesive closure with a separate tape strip for easy sealing.

Are these envelopes compatible with printers?

Yes, they are compatible with most laser and inkjet printer models without causing jams or soiling.

What is the packaging detail for the order?

Standard packaging is 100 packs per set, but customized packaging is also available upon request.

Custom Envelopes 4 X 6 Inch Brown A4 Customized Kraft Paper Envelopes Invitation Postcard Envelopes

Name: Custom Envelopes 4 X 6 Inch Brown A4 Customized Kraft Paper Envelopes Invitation Postcard Envelopes
Brand: Changsha Hetong Technology Co., Ltd.
SKU: 2251452955

Hunan, ChinaChangsha Hetong Technology Co., Ltd.

US$0.20

1,000-4,999 Pieces

US$0.10

5,000-99,999 Pieces

US$0.05

100,000+ Pieces

Sample price:US$5.00/piece.Request sample

Product profile

Customization

Available

Sealing Method

Self-Sealing

Material

Paper

Model NO.

HT202616

Waterproof Performance

Non-Waterproof

Size

Custom Size

Industrial Use

Gift & Craft

Printing Handling

Offset Printing

Closure

Seal Adhesive Closure

Surface Handling

Matte/Glossy Lamination

Transport Package

Carton

Trademark

HT Stationery

Origin

China

Key features

Customized Color Options: Available in pink, light green, blue, purple, red, yellow, orange, and more.

Customized Logo Printing: Supports laser, inkjet, digital, and offset printing for personalized branding.

Self-Sealing Adhesive Closure: Features a convenient peel-and-seal tape for quick and secure closure.

Durable 120gsm Paper: Made from thick, high-quality ordinary paper ensuring excellent durability.

Versatile Size Selection: Includes standard A7 sizes: 3.625x5.125, 4.375x5.75, 4.25x6.25, and 5x7 inches.

Fast Delivery Time: Standard delivery completed within 7 to 15 days after order confirmation.

ISO9001 Certified Quality: Factory passed ISO9001 certification with strict pre-production and final inspections.

Bulk Supply Capacity: Monthly supply ability of 100,000 pieces to meet large order demands.

Company profile

Changsha Hetong Technology Co., Ltd.Hunan, China

Business Type: Manufacturer/FactoryExport Year: 2020-09-10Nearest Port: shenzhenAverage Response Time: ≤11.28hTerms of Payment: T/T, Western Union, PayPalInternational Commercial Terms(Incoterms): EXW, FOB

AI-Powered supplier vetting

SummaryChangsha Hetong Technology Co., Ltd. is a China-based manufacturer/factory founded in 2020, integrating R&D, design, production, and sales of stationery products. It offers writing instruments, paper products, notebooks, office and student supplies, and creative or gift stationery. The supplier reports multiple management certifications, including ISO 9001, ISO 14001, ISO 13485, ISO 50001, BSCI, SEDEX, HACCP, and others. It states that 4% of revenue is invested annually in R&D, that it holds multiple national patents, and that it has 21–30 years of cumulative R&D engineer experience. Operationally, it reports five production lines, 50 quality-control staff, broad export coverage, a peak-season fulfillment time of one month, and an off-peak lead time within 15 working days. Evidence is insufficient to assess after-sales service, financial credibility, and specific customer cases.

Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory and as a limited company headquartered in Changsha, Hunan, China. Its stated business model integrates R&D, design, production, and sales, supporting classification as a manufacturing supplier rather than only a trading company.

CertificationsThe supplier reports a broad set of certifications and management-system credentials, including ISO 9001, ISO 14001, ISO 50001, ISO 13485, BSCI, SEDEX, HACCP, and other ISO standards. ISO 9001 is specifically linked to quality-control practices, including raw-material selection and production standards.

R&D capabilityThe supplier states that it invests 4% of revenue annually in R&D, holds multiple national patents, and integrates R&D and design into its operations. The reported cumulative R&D engineer experience of 21–30 years further supports an innovation capability, although no specific patent titles or new-product performance data are provided.

Production capacityThe supplier presents a broad stationery portfolio and reports five production lines, 50 quality-control staff, exports to multiple global regions, off-peak lead times within 15 working days, and peak-season fulfillment within one month. These stated resources and delivery metrics support production capability, though product-specific capacity data is not provided.

Customization capabilityThe supplier explicitly offers co-branded collections and corporate custom gifts within its creative and gift stationery business. This directly supports customization capability, although the scope of customization options, minimum order quantities, and development process are not specified.