Introduction
The personalized customization boom is in full swing. From home renovation and car exterior design down to small daily goods such as phone cases, canvas bags and earphone cases consumers are no longer satisfied with generic mass-produced items. Many manufacturers have shifted from homogeneous bulk production to customized service offerings.
Prosub focus on phone case sublimation supplies. Boasting self-developed coating technology and large-scale factory capacity, we have fully upgraded our custom printing processing service. We open custom phone case manufacturing to e-commerce merchants, cultural & creative studios, brand owners and cross-border clients.
We also provide sublimation OEM services for a full range of digital accessories including earphone cases and mechanical keyboard keycaps.
With mature craftsmanship and stable production capacity, we deliver high-quality, long-wearing custom peripherals for our partners.
Custom Sublimation Phone Cases | Premium Self-Manufactured Raw Materials
We have 15 years of R&D and production experience in sublimation phone cases, ranking among the industry’s leading original manufacturers. All blanks are independently produced in our own production lines, setting us apart from subcontractors that source base casings externally. We control quality strictly starting from raw material procurement.
Wide Range of Blank Types & Base Materials
We supply multiple cases options: film case, coated cases, transparent coated cases,2-in-1 film cases, 2-in-1 coated cases, 2D cases, etc. Available in multiple versions, including glossy, matte, fine-pore, and large-pore finishes.
Our cases feature excellent toughness, resisting cracking and deformation after long-term use. They fit all mainstream smartphone models including iPhone, Samsung, Huawei, Xiaomi and Google. Newly released phone models get matching shells launched simultaneously, covering all best-selling devices on the market.
Superior Durability via Sublimation Transfer
We adopt molecular infiltration thermal sublimation technology. Under high temperature and pressure, ink penetrates deep into the casing instead of sitting on the surface like adhesive stickers or screen printing. Curved full-wrap seamless printing is achievable, with no white edges or disjointed seams on corners. Prints deliver photo-grade high-definition reproduction with smooth color gradients and ultra-fine detail restoration.
Patterns will never fade or peel off from repeated hand friction, pocket storage or long-term sun exposure. The surface remains uniformly smooth without raised printing textures. Matte variants effectively resist fingerprints, balancing stunning aesthetics and practical performance.
Flexible Order Acceptance Rules for All Batch Sizes
We support sample orders of one piece, small trial batches and large-volume export mass production. Whether you operate an online store, launch brand co-branded collections, source corporate business gifts, design cultural & creative commemorative goods or ship bulk cross-border orders, we can match production cycles covering plate making, printing and full inspection to guarantee efficient delivery.
Customization of Earphone Cases& Keycaps to Expand Your Product Line
We extend our custom service to popular small digital accessories to deliver a one-stop OEM solution, helping clients enrich their product portfolios and source all peripheral goods from a single supplier.
Custom Wireless Sublimation Earphone Cases
Compatible with all AirPods generations. Hard PC coated shells are specially engineered for sublimation printing. Even compact curved surfaces can be fully printed without blind spots. Full-shell wrap-around prints stay intact despite repeated disassembly and daily bumps, making them top trending accessories for streetwear brands and corporate event gifts.
Custom Sublimation Keycaps
We specialize in sublimation keycap OEM for e-sports retailers and keycap studios. Full-set customization is available for characters, anime graphics and themed illustrations. Made of PBT material paired with sublimation craftsmanship, the keycaps resist shiny oil buildup after years of tapping and retain vibrant colors permanently. We cater to minimalist business styles, anime aesthetics and mainstream e-sports trends.
Core Advantages of Our Custom Processing | Reliable & Worry-Free Cooperation
Self-Produced Supplies for Stable Costs & Consistent Quality
As a leading manufacturer of sublimation raw materials, we independently produce blank shells and coating formulas, eliminating middleman markups and offering competitive custom processing prices.
The entire workflow—base case molding, coating spraying and printing processing—is completed within our own workshops. We implement strict incoming material testing, in-process monitoring and finished product inspection, complying with ISO, CE and RoHS export standards. Our goods meet market requirements across Europe, America and Southeast Asia for smooth customs clearance, with quality benchmarked against international standards.
Complete Warehousing & Delivery System for On-Time Shipment
Our factory houses large standardized warehouses stocked with massive inventories of regular blank shells. Large bulk orders can be scheduled for rapid production, while urgent small orders receive priority processing. Mature packaging and shipping procedures enable efficient domestic logistics, ensuring stable lead times and preventing production delays.
Diverse Cooperation Scenarios to Fit All Client Demands
- E-commerce Sellers & Cultural Creative Studios: Create exclusive original designs to differentiate from generic market goods. Dual options of custom printing and bulk blank supply are available.
- Corporate Bulk Procurement: Print corporate logos and brand slogans on phone cases and earphone cases as employee welfare, client business gifts and exhibition souvenirs.
- Cross-Border E-commerce Merchants: Full international environmental certification, standardized mass production and complete craftsmanship & qualification documents for overseas platform sales.
- Co-Branded Merchandise & Event Tournaments: Custom peripherals for sports stars, anime IPs, cultural tourism scenic spots and holiday events, with high-fidelity reproduction of copyrighted artwork and premium finished texture.
In the era of personalized customization, premium craftsmanship and stable supply chains are the core drivers of sustainable profit. Backed by original factory capacity, we supply high-quality printed finished products to every partner. All clients are welcome to contact us for custom printing cooperation and visit our factories to inspect production capacity and craftsmanship on-site.
About Prosub
Dongguan Prosub Technology Co., Ltd. serves as an integrated supplier of sublimation transfer materials and equipment as well as a world-class original maker of sublimation phone cases. Dedicated to innovating sublimation transfer technology, we operate two production bases in Dongguan and Jiujiang with a total area of over 33,000 square meters and hold ISO9001 certification. Our products are sold to Europe, America, Southeast Asia and many international regions across the world.
