PP Sample

Definition and position in the process

A PP sample is a highly finished product sample created before mass production. It is used to check whether the development intent, pattern, specification sheet, fabric, trims, and processing methods match the mass-production version, and serves as a basis for deciding whether to move on to mass production.

In general, it is made after the silhouette and specifications have been reviewed with a toile or an initial sample, and before placing a mass-production order. However, the name used, timing of creation, and scope of confirmation may vary depending on the brand, sewing factory, or trading partner.

Main items to check

With a PP sample, you check not only how the design looks, but also whether the specifications can actually be reproduced in production. It is important to reflect the revision history of the pattern and evaluate it using materials that are scheduled to be finalized for mass production.

• Finished measurements, ease when worn, left-right differences, silhouette
• Fabric face and back, grainline, pattern matching, color differences, impact of shrinkage
• Sewing specifications, stitch count, seam finishing, stitch position, puckering
• Item numbers, colors, and attachment positions for trims such as buttons, zippers, and labels
• Appearance and dimensional changes after secondary processing such as washing, embroidery, and printing

How to proceed and how to organize the information

When requesting it, clearly designate the latest specification sheet and pattern as the reference materials. Rather than conveying revisions only verbally, recording the target area and details of the changes with instructions, drawings, photos, and so on makes it easier to prevent misunderstandings with the sewing factory.

After confirmation, document the decision of approval, disapproval, or conditional approval, along with revision instructions. Check whether the revisions will affect mass-production cutting, material arrangement, or processing arrangements, and share with the relevant parties whether production can proceed and the finalized specifications.

Points to note for ordering and quality control

If the specifications are changed after the PP sample is approved, it may lead to differences from the mass-produced items, delivery delays, and additional costs. If a change is unavoidable, clarify the size, color, materials, processes, and the scope of reflection in mass production.

Because samples are produced in small quantities, they may not be completely identical to mass-produced items. In particular, account for lot differences in fabric and trims, differences in equipment and processes during mass production, and individual variations caused by washing processes, and check the initial mass-production items if necessary.

Differences from similar terms

A toile refers mainly to a temporary sewing or prototype used to review the pattern and three-dimensional shape. A PP sample differs in that it is made with materials and specifications close to mass production, to confirm the finished product and whether production is feasible.

Depending on the context, PP can also mean polypropylene. However, in PP sample, PP usually stands for pre-production, meaning before mass production, and does not indicate a material name.

Frequently asked questions