{"id":14982,"date":"2024-03-18T17:43:13","date_gmt":"2024-03-18T17:43:13","guid":{"rendered":"https:\/\/bfymold.com\/?p=14982"},"modified":"2025-06-11T06:21:54","modified_gmt":"2025-06-11T06:21:54","slug":"why-do-injection-molded-products-change-color","status":"publish","type":"post","link":"https:\/\/bfymold.com\/fr\/why-do-injection-molded-products-change-color\/","title":{"rendered":"Pourquoi les produits moul\u00e9s par injection changent-ils de couleur ?"},"content":{"rendered":"\n

Les produits moul\u00e9s par injection<\/a> peuvent changer de couleur en raison de plusieurs facteurs :<\/p>\n\n

<\/div>\n\n
\"moulé
moul\u00e9 par injection<\/figcaption><\/figure>\n\n
<\/div>\n\n

Raisons de la d\u00e9coloration des produits en plastique :<\/h2>\n\n
<\/div>\n\n

1. Plastique et pigment m\u00e9lang\u00e9s \u00e0 des d\u00e9bris ;<\/p>\n\n

2. Pollution ou d\u00e9gradation des plastiques et des pigments, d\u00e9composition ;<\/p>\n\n

3. La qualit\u00e9 du pigment n’est pas bonne ou le m\u00e9lange n’est pas uniforme lors de l’utilisation ;<\/p>\n\n

4. La temp\u00e9rature du cylindre et de la buse est trop \u00e9lev\u00e9e, ce qui br\u00fble et d\u00e9colore le caoutchouc<\/a>;<\/p>\n\n

5. La pression et la vitesse d’injection sont trop \u00e9lev\u00e9es, ce qui entra\u00eene la d\u00e9composition des additifs et des colorants ;<\/p>\n\n

6. Humidit\u00e9 de la surface des moisissures<\/a>, huile ou utilisation excessive d’agent de d\u00e9moulage ;<\/p>\n\n

7. R\u00e9partition in\u00e9gale des fibres de remplissage, des produits et de la perte de r\u00e9sine par contact avec le solvant, de sorte que la fibre est d\u00e9nud\u00e9e ;<\/p>\n\n

8. Des obstacles dans le tube de fusion favorisent la d\u00e9gradation du mat\u00e9riau.<\/p>\n\n

<\/div>\n\n
\"produits
produits en plastique<\/figcaption><\/figure>\n\n
<\/div>\n\n

Solution pour la d\u00e9coloration des produits en plastique :<\/h2>\n\n
<\/div>\n\n

1. \u00c9viter de m\u00e9langer avec des d\u00e9bris lors du m\u00e9lange ;<\/p>\n\n

2. Les mati\u00e8res premi\u00e8res doivent \u00eatre s\u00e8ches, l’\u00e9quipement doit \u00eatre propre et le ravitaillement doit \u00eatre nettoy\u00e9 pour \u00e9viter de laisser des mat\u00e9riaux exc\u00e9dentaires ;<\/p>\n\n

3. Pour garantir la qualit\u00e9 de tous les pigments, ceux-ci doivent \u00eatre fix\u00e9s uniform\u00e9ment \u00e0 la surface des particules lors du m\u00e9lange ;<\/p>\n\n

4. R\u00e9duire la temp\u00e9rature du tube de fusion et de la buse pour \u00e9liminer la colle br\u00fbl\u00e9e.<\/p>\n\n

5. R\u00e9duire la pression d’injection et les valeurs des param\u00e8tres de vitesse pour \u00e9viter la d\u00e9composition des additifs ;<\/p>\n\n

6. S\u00e9cher la surface du moule avec de l’eau et de l’huile, utilisation rationnelle de l’agent de d\u00e9moulage ;<\/p>\n\n

7. R\u00e9gler raisonnablement les param\u00e8tres de traitement de la charge de fibres, utiliser raisonnablement le solvant, assurer une bonne plastification et \u00e9liminer l’exposition des fibres ;<\/p>\n\n

8. Veillez \u00e0 \u00e9liminer les obstacles, en particulier pour le ravitaillement en carburant, en suivant strictement la proc\u00e9dure par \u00e9tapes ou en utilisant la m\u00e9thode de ravitaillement en transition.<\/p>\n","protected":false},"excerpt":{"rendered":"

Les produits moul\u00e9s par injection peuvent changer de couleur en raison de plusieurs facteurs : Raisons de la d\u00e9coloration des produits en plastique : 1. Plastique et pigment m\u00e9lang\u00e9s \u00e0 des d\u00e9bris ; 2. Pollution ou d\u00e9gradation des plastiques et des pigments, d\u00e9composition ; 3. La qualit\u00e9 du pigment n’est pas bonne ou le m\u00e9lange […]<\/p>\n","protected":false},"author":1,"featured_media":7212,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[49],"tags":[],"class_list":["post-14982","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/bfymold.com\/fr\/wp-json\/wp\/v2\/posts\/14982","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bfymold.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bfymold.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bfymold.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bfymold.com\/fr\/wp-json\/wp\/v2\/comments?post=14982"}],"version-history":[{"count":0,"href":"https:\/\/bfymold.com\/fr\/wp-json\/wp\/v2\/posts\/14982\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bfymold.com\/fr\/wp-json\/wp\/v2\/media\/7212"}],"wp:attachment":[{"href":"https:\/\/bfymold.com\/fr\/wp-json\/wp\/v2\/media?parent=14982"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bfymold.com\/fr\/wp-json\/wp\/v2\/categories?post=14982"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bfymold.com\/fr\/wp-json\/wp\/v2\/tags?post=14982"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}