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Apparatus and method for coating absorbent substrate webs

A coating device, absorbent technology, applied in the field of coating absorbent substrate web, device for coating absorbent substrate web

Inactive Publication Date: 2020-06-16
ESSITY HYGIENE & HEALTH AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, such bladed single kiss roll coaters are not suitable for coating a moving web in a discontinuous manner (i.e. at specific locations on the web) or in an intermittent manner (i.e. at defined times in the web manufacturing process).

Method used

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  • Apparatus and method for coating absorbent substrate webs
  • Apparatus and method for coating absorbent substrate webs
  • Apparatus and method for coating absorbent substrate webs

Examples

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Embodiment Construction

[0048] A first embodiment of a device for coating an absorbent substrate web is schematically shown in figure 1 with 2 middle. figure 1 is a side view showing the absorbent substrate web application device 10 in the engaged position P1. figure 2 is a side view showing the absorbent substrate web coating device 10 in remote position P2. The absorbent substrate web coating device 10 according to the first embodiment is based on a chamber doctor blade and a rotary mechanism, which will be described in detail below. The absorbent substrate web coating device 10 is used to apply a coating material 21 over a defined length L on an absorbent substrate web 20 . The absorbent substrate web coating device 10 comprises a dosing roll 1 , a transfer roll 2 , a support roll 3 . The coating material storage and transfer unit is realized in the form of a chamber scraper 30 and a swing mechanism 5 .

[0049] The support roll 3 supports the absorbent substrate web 20 traveling at a speed ...

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Abstract

An absorbent substrate web coating apparatus (10) for applying a coating material (21) on a web of absorbent substrate (20) over a defined length (L) includes: − a support device (3, 33, 34) arranged to support the web of absorbent substrate (20) running at a speed ranging from around 200 m / min to around 1.200°m / min, − a dosing and transfer device (1, 2) arranged to cooperate with a coating material storing and transferring unit (30, 31, 32) such as to continuously coat a surface (9) of the dosing and transfer device (1) with an uniform quantity of coating material (21), and − an oscillating mechanism (5, 15, 25, 35) arranged to oscillate the dosing and transfer device (1, 2) or the support device (33, 34) from an engaged position (P1) to a remote position (P2), the dosing and transfer device (1, 2) being arranged relatively to the support device (3, 33, 34) such that the transfer device (1, 2) applies the coating material (21) to the web of absorbent substrate (20) at a contacting location where the web of absorbent material (20) contacts the support device (3, 33, 34) and the dosing and transfer device (1, 2) only in the engaged position (P1).

Description

technical field [0001] One aspect relates to an apparatus for coating an absorbent substrate web. Another aspect relates to a method of coating an absorbent substrate web. A further aspect relates to a converting machine comprising such a device for coating an absorbent substrate web. This absorbent substrate can be converted into an absorbent sheet product, which has specific but not exclusive use as hygiene or household use. For example, such absorbent sheet products can be used as toilet paper for bathrooms. Other uses such as napkins, towels, kitchen towels, hand towels, toilet paper, wipes, face towels, bath towels and more are possible. Background technique [0002] The absorbent substrate web may be a tissue web obtained by conventional wet pressing or through-air drying manufacturing methods or other manufacturing methods. Tissue paper refers to absorbent papers based on cellulose fibers, also known in the technical field as tissue-based sheets. Typical absorben...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F13/15B05C1/04B05C1/08B05D1/28
CPCA61F13/15658A61F13/15764B05C1/08B05C1/0834B05D1/28B05D2252/02
Inventor R·鲁佩尔D·巴雷多
Owner ESSITY HYGIENE & HEALTH AB
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