Seiwa International Co., Ltd.

About Seiwa International Co., Ltd.

Textile Processing & Apparel OEM Specialist | Custom Printing, Embroidery, Dyeing, Domestic and Overseas Production, and Garment Repair

Seiwa International Co., Ltd. is a textile processing specialist based in Nagoya, Aichi Prefecture, Japan. Building on its expertise in screen printing, the company offers a comprehensive range of services, including design, screen making, printing, embroidery, dyeing, sewing, finishing, and repair. It supports product development for apparel brands, specialty retailers, trading companies, and vertically integrated retailers (SPAs).

Printing capabilities cover a wide variety of techniques, including textile printing, rubber printing, flock printing, foil printing, glitter printing, heat-transfer printing, inkjet printing, discharge printing, and burnout printing. The company also offers hot-fix embellishment using rhinestones, Swarovski crystals, studs, metal components, sequins, and other decorative materials. From hand-drawn concepts and graphic design to print-ready artwork and screen making, Seiwa International helps clients select suitable techniques to achieve their desired product appearance.

Its embroidery services include standard embroidery, patches and emblems, chain-stitch-style embroidery, cord embroidery, sequin embroidery, smocking, sashiko-style stitching, and other decorative techniques. These services can be applied to a wide range of products, including T-shirts, sweatshirts, hoodies, woven garments, leather jackets, varsity jackets, caps, hats, towels, and fashion accessories.

For dyeing and garment finishing, the company offers garment dyeing, bio-washing, pigment washing, uneven dyeing, tie-dyeing, shibori-style dyeing, bleaching, stone washing, sand washing, and other specialized treatments. It also combines printing, embroidery, and dyeing techniques to create distinctive finishes, including vintage-inspired textures and unique surface effects.

Seiwa International also provides repair and correction services for textile products after printing, embroidery, sewing, and dyeing. These include print corrections, sewing repairs, embroidery and rhinestone repairs, as well as functional treatments such as water repellency, shrinkage control, UV protection, anti-static treatment, and softening.

The company supports domestic production of cut-and-sew garments through its network of partner sewing factories in Japan. For overseas manufacturing, it works with three partner factories in China and two in South Korea. Its integrated production capabilities cover cutting, sewing, secondary processing, finishing, and shipment, helping clients streamline production coordination, quality control, and delivery management.

Combining extensive textile processing expertise with a flexible domestic and international production network, Seiwa International serves as a comprehensive manufacturing partner for apparel brands and businesses seeking distinctive designs, specialized finishes, scalable production, and post-processing quality improvements.