Can I request a sample before placing a bulk order? How does Yichen handle sample production and pre-mass-production validation?

We understand that artwork, unpublished books, game designs, product concepts, and other creative materials may be commercially sensitive.

Client-provided files and product information are used for the purpose of quotation, production, quality control, and related project coordination. We do not use a client's designs as our own products or intentionally distribute them to unrelated third parties.

If a project involves particularly sensitive or unpublished materials, clients can also discuss confidentiality requirements with us before sharing the complete files.

We respect the intellectual property rights of our clients and understand that protecting unpublished products is an important part of a professional manufacturing relationship.

You can still contact us. We can first review the files you have and identify what needs to be prepared before production.

Depending on the project, this may involve checking page dimensions, cover structure, spine information, image resolution, bleed, artwork placement, die-cut areas, or finishing positions.

For products with special structures, we can also provide templates or technical references to help your designer prepare the artwork correctly.

If adjustments are required, we will explain the issue clearly and indicate what needs to be changed rather than simply rejecting the file.

Our goal is to make the transition from design files to manufacturable files as straightforward as possible.

Yes. Repeat production is an important part of our cooperation with publishing and product-development clients.

For repeat orders, we can refer to the previously confirmed specifications, materials, finishing requirements, packaging standards, and production records. This helps maintain consistency between different production runs.

If you need to make changes for a new edition, such as updating the artwork, changing the quantity, modifying the packaging, or introducing a new finish, we can review the changes separately while keeping the existing product specifications as a reference.

For clients with regular production requirements, we aim to establish a stable manufacturing workflow so that future orders can be handled more efficiently.

Yes. We can coordinate different printed and paper-based components as part of the same project instead of requiring you to manage each component separately.

For example, a single product may contain a book, card deck, game board, tokens, instruction sheet, box, and additional printed materials.   These components can have different production methods and specifications, but we can coordinate their manufacturing and final assembly.

This can simplify communication and reduce the need to manage multiple suppliers.

We can also help coordinate packaging requirements, carton packing, labeling, and shipment preparation so that the finished components are ready to be delivered as one complete product where applicable.

For projects containing many components, we will first review the complete product structure and determine how the different parts should be manufactured and coordinated.

Yes. You do not always need to start with a complete technical specification.

If you already have a physical sample, product from another manufacturer, prototype, drawing, photograph, or concept, you can provide it to us for evaluation.   Our team can review the structure and help identify the main manufacturing specifications required to reproduce or improve the product.

We can assist with evaluating dimensions, paper and board materials, construction, binding, component combinations, packaging structures, and decorative effects.

If certain materials or production methods are not practical for the required quantity or budget, we can also suggest alternative solutions that achieve a similar appearance or function.

This approach is particularly useful for clients who have a finished product concept but do not yet have a complete manufacturing specification.

Our production process is straightforward and transparent.   Here’s how it typically works:

Inquiry & Specification – You provide your project details, including product type, quantity, size, paper stock, binding, and finishing requirements (lamination, embossing, foil stamping, etc.).

Quotation & Confirmation – We send you a detailed quote. Once you confirm, we move to the next step.

File Review & Sample Production – You provide your print-ready PDF files (300 DPI recommended, with 3mm bleed included). We review the files for technical issues and produce a physical sample for your approval.

Sample Approval & Deposit – After you approve the sample, you pay the 50% deposit to start mass production.

Mass Production & In-line QC – We manufacture your order using our full-scale offset printing presses (e.g., Heidelberg). Throughout production, we conduct multiple quality checks — including color density verification, registration accuracy, and binding strength tests — to ensure consistency and quality.

Final Payment & Shipment – Once production is complete and final quality inspection (FQI) passes, we notify you to arrange the 50% balance payment. After payment is confirmed, we ship the order and provide shipping details.

We also offer pre-press technical support to help you with file setup — including providing die-cut templates and bleed guides if needed. And yes, we welcome client inspections during or after production. If you’re not able to visit in person, we can arrange remote inspection via video call or send detailed photos for your review.