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Method for decontaminating the outer surfaces of preforms made of thermoplastic material

A thermoplastic material, preform technology, applied in the direction of disinfection, chemistry, irradiation, etc., can solve the problem of increasing the residual amount of hydrogen peroxide, and can not significantly improve the degree of decontamination.

Active Publication Date: 2021-12-24
SIDEL PARTICIPATIONS SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0024] This method of decontamination significantly increases the residual amount of hydrogen peroxide, but does not significantly increase the degree of decontamination, especially compared with the decontamination of the outer surface of the neck achieved by irradiation with only ultraviolet radiation according to the teaching of the aforementioned document EP-2094312 in this way

Method used

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  • Method for decontaminating the outer surfaces of preforms made of thermoplastic material
  • Method for decontaminating the outer surfaces of preforms made of thermoplastic material
  • Method for decontaminating the outer surfaces of preforms made of thermoplastic material

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Embodiment Construction

[0080] In the following, longitudinal, vertical and transverse directions are taken with reference to the coordinate system (L, V, T) shown in the drawings without limitation.

[0081] Also without limitation, the expressions "front" and "rear" are used with reference to the longitudinal orientation, the expressions "upper" and "lower" or "high" and "lower" are used with reference to the vertical orientation, and finally, the expressions "left" and "left" are used with reference to the horizontal orientation. " and "Right".

[0082] The expressions "inner" or "outer" and "inner" or "outer" are used with respect to a preform or container having a hollow body, respectively, and are generally used to refer to a member either within the preform or container, or in the preform or container outside.

[0083] figure 1 An embodiment of a preform 10 made of thermoplastic material is shown in , followed by successive steps of subjecting said preform 10 to the method for decontaminatin...

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Abstract

The invention relates to a decontamination method for decontaminating the outer surface (30) of a preform (10) made of thermoplastic material, the preform having a hollow body (12) provided with a neck (14) , said decontamination method successively comprises at least: a treatment step (a) consisting in condensing and depositing hydrogen peroxide (H 2 o 2 ); vaporization step (b), vaporization of a part of the hydrogen peroxide condensate (32); and irradiation step (c), consisting in irradiating at least the neck (14) of the preform (10) with ultraviolet radiation (UV) At least the outer surface (30) to allow hydrogen peroxide (H 2 o 2 )activation.

Description

technical field [0001] The invention relates to a decontamination method for decontaminating the outer surfaces of preforms made of thermoplastic material. Background technique [0002] Some examples of decontamination methods for preforms made of thermoplastic material intended to be converted into containers in manufacturing plants are known from the prior art. [0003] A distinction is made in the prior art: on the one hand, decontamination methods for the decontamination of the inner surface of the preform; dirty method. [0004] Document EP-2094312 proposes a plant for the manufacture of containers based on decontaminated preforms of thermoplastic material, in particular a preform conditioning furnace equipped with such a plant. [0005] According to the teaching of this document, the thermal conditioning furnace has UV-emitting decontamination elements arranged in the heating path after the first heating, ie entry zone, of the preforms. [0006] Therein at least the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L2/10A61L2/18A61L2/20B65B55/08
CPCA61L2/10A61L2/186A61L2/208A61L2202/23B29C49/68B29C49/06B29C49/46B29C49/42418B29C2949/0715
Inventor F·凯泰尔B·耶格S·勒泰利耶J·德马尔
Owner SIDEL PARTICIPATIONS SAS