Infant Feeding Product Case
Silicone Water Cup
Customized skin-friendly and safe silicone water cup for infants to help babies learn independent drinking and train sucking and grasping abilities.

Client Requirements
Silicone Water Cup
The product complies with European and American food contact safety standards, featuring soft drop-proof body, anti-choke design, easy cleaning and storage.
Client Background
A branded retailer of maternal and infant supplies, focusing on mid-to-high-end infant feeding and drinking auxiliary products.
Application Scenarios
Suitable for infants to drink water at home and during travel, matching the bottle weaning and drinking learning stage, and exercising babies’ hand holding and independent drinking ability.
Demand Positioning
Non-toxic and odorless infant silicone drinking cup with soft drop-proof, high temperature resistant, steam and boilable disinfection, lightweight and easy to hold, leak-proof and anti-choke features.
Engineered Response
Final Successful Solution
Process Overview
Adopt 3D structural modeling and drawing, customize special precision injection and stamping molds, use high-transparency solid food-grade silicone raw materials, and complete integral forming by oil pressure molding. The cup body radian fits baby’s palm, the cup mouth is round and mouth-friendly with no splicing gaps.
Materials
Food-grade silicone (FDA maternal and infant safety certified), non-toxic, odorless, high and low temperature resistant, drop and wear resistant, flexible and non-deformable, free of harmful substances such as BPA, phthalates and heavy metals.
Final Successful Solution
Adopt integral compression molding with high-flexibility food-grade silicone with fully round and safe design without sharp edges. The thin and soft body is drop and collision proof, equipped with slow-flow anti-choke structure suitable for young babies. It supports boiling and high-temperature steam disinfection. The one-piece seamless structure avoids dirt accumulation and water leakage, and has passed infant food contact safety tests.

Production Workflow
Detailed Process
Open the complete silicone water cup process guide
Material Preparation & Rubber Mixing
Mix and color food-grade silicone raw materials at constant temperature with compliant food-grade color masterbatch, cut rubber materials with precise quantification, and strictly control the consistency of hardness, color and thickness of each batch to ensure product uniformity.
Mold Preheating
Clean the special precision mold for silicone water cups, install it on vulcanization equipment for constant temperature preheating, stabilize mold temperature difference, and ensure uniform wall thickness and standard shape of formed cups.
Feeding & Mold Closing
Accurately put quantitative silicone raw materials into the mold cavity, close the mold and exhaust air for multiple times to completely eliminate molding defects such as air bubbles, material shortage and depressions on the cup body.
High-temperature Vulcanization
Adopt constant temperature and pressure high-temperature vulcanization process to fully cross-link and solidify silicone raw materials. The cup body has a compact and uniform structure with excellent resistance to pulling, rubbing, cracking and deformation.
Demolding & Picking
Open the mold stably after constant temperature molding, take out the cup blank completely, and let it cool and shape naturally to effectively avoid edge warping, deformation and radian deviation of the cup body.
Post-processing & Inspection
Finely trim excess burrs on the cup mouth and body, conduct secondary high-temperature deodorization baking and sterile dust cleaning. After passing multiple quality inspections including appearance, wall thickness, toughness, sealing performance and safety compliance, the products are sterilely packaged and put into storage, complying with international infant product access standards.
Get An Instant Quote
Get An Instant Quote
Legensilico is equipped with different injection molding, professional engineering support and strict test to custom various shapes, sizes and colors of silicone products for your different projects. We have over 20 years in manufacturing silicone parts, and our products are distributed around the world. Trust us, send inquiry!





