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Production process of PPSU (Polyphenylsulphone) milk bottle

A production process and baby bottle technology, applied in the field of production and processing, can solve problems such as easy generation of air bubbles, high cost, and low pass rate, and achieve the effects of reducing the occurrence rate of air bubbles, light weight, and improving pass rate

Inactive Publication Date: 2014-09-03
NINGBO HAPPY BABY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this kind of feeding bottle is easy to produce air bubbles during the production process, the qualified rate is low, and the cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The production process of the PPSU baby bottle includes the following steps: first, put the PPSU into the baking equipment at 155°C and bake it for 3.5 hours; then, melt the dried PPSU raw material at a temperature of 350°C; put the melted The glue is injected into the bottle mold, and the pressure is maintained at 6.0MPA for 2-3s to obtain the preform (this step can effectively eliminate the air bubbles in the preform); finally, when the preform is cooled to 130°C, the preform is Stretch-blow molding to obtain the PPSU feeding bottle of the present invention, wherein the stretch-blow temperature is 80°C.

Embodiment 2

[0017] The production process of the PPSU baby bottle includes the following steps: the production process of the PPSU baby bottle includes the following steps: first, put the PPSU into a baking equipment at 160°C, and bake it for 4 hours; then, melt the dried PPSU raw material, melt it The glue temperature is 370°C; inject the melted glue into the bottle mold, and keep the pressure at 6.0MPA for 2-3s to make the preform (this step can effectively eliminate the air bubbles in the preform); finally, cool the preform When the temperature reaches 140°C, the preform is stretch-blow-molded to obtain the PPSU feeding bottle of the present invention, wherein the stretch-blow temperature is 90°C.

Embodiment 3

[0019] The production process of the PPSU baby bottle includes the following steps: the production process of the PPSU baby bottle includes the following steps: first, put the PPSU into a baking equipment at 165°C, and bake it for 4.5 hours; then, melt the dried PPSU raw material, The temperature of the melt glue is 380°C; inject the melted glue solution into the bottle mold, and keep the pressure at 6.0MPA for 2-3s to make the preform (this step can effectively eliminate the air bubbles in the preform); finally, put the preform When cooled to 150°C, stretch-blow the preform to obtain the PPSU feeding bottle of the present invention, wherein the stretch-blow temperature is 100°C.

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PUM

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Abstract

The invention discloses a production process of a PPSU (Polyphenylsulphone) milk bottle. An existing method has the problems that bubbles are easily generated, the qualification rate is relatively low, and the cost is relatively high. The production process comprises the following steps: (1) performing dehumidification drying, namely baking a PPSU raw material; (2) performing glue-smelting, namely performing glue-smelting on the baked PPSU raw material; (3) performing injection moulding, namely injecting molten glue into a bottle mould, and keeping the pressure of 6.0MPA for 2-3 seconds to obtain a bottle blank; (4) performing stretching blowing forming on the bottle blank to obtain the PPSU milk bottle. The PPSU milk bottle produced from PPSU as the raw material is good in chemical resistance, stable in color and size, difficult to colorize by foods, light in weight and low in thermal expansion coefficient, has the advantages of high strength and high transparency, and can keep stable performance at the temperature ranging from -50 DEG C to 220 DEG C; the pressure is maintained in the injection moulding process, so that the occurrence rate of bubbles is effectively reduced, the product qualification rate is increased, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of production and processing, and in particular relates to a production process of a PPSU feeding bottle. Background technique [0002] In the past, baby bottles were mostly made of polycarbonate (PC) and epoxy resin, and both polycarbonate (PC) and epoxy resin were synthesized from bisphenol A. Bisphenol A can cause endocrine disorders and seriously threaten the health of infants and young children. . From March 2, 2011, the production of baby feeding bottles containing the chemical substance bisphenol A (BPA) has been banned. At present, a feeding bottle made of PPSU (polyphenylsulfone) has been developed in the market. This feeding bottle does not contain bisphenol A, and has the characteristics of safety and transparency of glass feeding bottles and the lightness and drop resistance of PP feeding bottles. But this feeding bottle is easy to generate air bubbles during the production process, the qualifi...

Claims

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Application Information

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IPC IPC(8): B29D22/00
Inventor 陈义中
Owner NINGBO HAPPY BABY
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