Toilet paper core

When purchasing toilet paper cores, you must specify the inner diameter (ID), wall thickness, and length. Standard household rolls typically use a 40mm to 45mm ID, while industrial jumbo rolls require larger diameters. The wall thickness (usually 1mm to 3mm) determines the crush resistance; higher thickness is essential for high-speed winding machines to prevent core collapse. Additionally, ensure the moisture content is between 8% and 12% to prevent warping or mold during storage.

Most cores are made from recycled kraft paper or grey board. For international markets, prioritize suppliers who provide FSC (Forest Stewardship Council) certification, which guarantees sustainable sourcing. You should also verify that the adhesives used are non-toxic and REACH/RoHS compliant, especially if the end product is marketed as eco-friendly or for sensitive skin use.

A top-tier manufacturer should utilize spiral winding technology for consistent strength. Ask if they offer custom surface finishes, such as polished or waxed exteriors, which reduce friction during the paper-winding process. Furthermore, check if the supplier can provide custom printing (logo/branding) on the inner or outer surface of the core, which is a growing trend for brand differentiation in the B2B sector.

Automated rewinding machines have very low tolerance for error. You should require a tolerance level of ±0.5mm for length and diameter. Request the supplier to perform a vertical pressure test to ensure the cores can withstand the tension of high-speed winding without deforming. It is highly recommended to order a sample batch to test on your specific machinery before committing to a bulk contract.

The biggest risk is moisture damage and physical deformation. Paper cores are hygroscopic; if shipped in a humid container without desiccants or proper plastic wrapping, they may swell and become unusable. Because they are 'hollow' goods, they take up significant volume but have low weight. To optimize costs, consider nesting different sizes or sourcing from suppliers near major ports to reduce inland transit vibration.

Pricing for paper cores is heavily tied to the global paper pulp index. It is wise to negotiate a formula-based pricing model for long-term contracts. For MOQs, while standard sizes may have lower requirements, custom dimensions usually require a full container load (FCL) to be economically viable. Always use Made-in-China.com's Secured Trading services to ensure your payment is protected until the quality inspection is passed.

Hire a third-party inspection agency to conduct a 'Random Sampling' check. The inspection must focus on inner diameter consistency, burr-free edge cutting, and moisture levels. Ensure the supplier uses heavy-duty palletizing with edge protectors to prevent the bottom layers from being crushed by the weight of the stack during sea freight.

Check the HS Code (typically 4822.90) for your specific country's import tariffs. Some regions have anti-dumping duties on certain paper products. Ensure the supplier provides a Certificate of Origin (CO), such as Form E or Form RCEP, which can significantly reduce or exempt you from import duties depending on your location.