Key Factors in Producing Ultra-Soft TPE/TPR Materials for Adult Products: Oil Selection, Formulation, Process and Equipment
Time of issue:2025-05-15
Key Factors in Producing Ultra-Soft TPE/TPR Materials for Adult Products: Oil Selection, Formulation, Process and Equipment
In the market, TPE/TPR materials with Shore 0A-10A hardness for adult products are quite common. Although industry insiders generally know that the formulations for adult products are simple, many TPE manufacturers still encounter various problems when producing these ultra-soft materials. Sobo TPE believes that the key issues lie not in the formulation, but in the production process, raw materials, and the selection of oil grades.
Currently, 0A-20A soft rubber materials are mainly used in the adult sex toy and toy industries. However, general TPE manufacturers often face problems such as insufficient transparency, poor quality of ultra-soft particles, or odor issues when producing these materials. We can analyze the specific problems from the following four aspects:
1. Oil Selection
As a major component, oil requires special attention when selected. In addition to meeting basic performance parameter requirements, key considerations include viscosity, transparency, odor, and long-term supply stability. Viscosity is relatively easy to control, and regular suppliers can generally ensure long-term stability. In terms of transparency, once a supplier is selected, it usually remains unchanged, as each company has its own long-term development route and does not simultaneously serve both high-end and low-end markets. Therefore, transparency is either consistently clear and transparent or always turbid.
2. Formulation
The formulation of these materials is relatively simple, mainly consisting of SEBS and oil, with a small amount of phthalocyanine blue (ultramarine) possibly added. Common SEBS suppliers in the market include Taiwan Synthetic Rubber, Lee Chang Yong, Kuraray, Kraton, Yuehua, etc. The selection of specific SEBS grades can be determined based on product requirements, customer demands, and expected effects.
3. Production Process
This is the most critical link. Current twin-screw pelletizing methods include water strand pelletizing, water ring pelletizing, underwater pelletizing, and air-cooled pelletizing. Among them, the strand and air-cooled methods are less suitable. In terms of machine configuration, production efficiency and quality assurance should be emphasized, as only by achieving these two can profits be obtained. Otherwise, even if the materials are produced, they have little value for TPE factories.
4. Equipment
Twin-screw equipment is widely used. It is recommended that the L/D ratio does not exceed 48, and the screw shear force should be weak, which can be adjusted according to actual situations. For ingredient mixing, low-speed or medium-speed mixing tanks are suggested. The cooling water system is preferably a single-machine independent system, and specific details can be consulted with equipment experts.
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