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A process for preparing high-wet-strength dust-free paper and the resulting product

A dust-free paper, high-strength technology, applied in papermaking, paper machines, textiles and papermaking, etc., can solve the problems of large dry-wet strength changes, high dry-wet strength, low strength, etc., to achieve good makeup removal, good permeability, The effect of increasing the tensile strength

Active Publication Date: 2022-04-12
NOX BELLCOW COSMETICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, glued dust-free paper has high dry and wet strength, does not shed dust, and is suitable for direct contact with the human body; heat-bonded dust-free paper has good softness, fluffiness, high thickness and strong water absorption, but it has dust shedding and low strength. , large changes in dry and wet strength

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Prepare dust-free paper according to the above-mentioned process and control points, wherein in step ii, in terms of dry weight parts, the raw materials for controlling the bottom layer include 60 parts of fluff pulp fibers, 30 parts of lyocell short fibers and 10 parts of hot melt The raw materials for controlling the middle layer include 75 parts of fluff pulp fibers, 20 parts of hot-melt short fibers and 5 parts of polymer water-absorbing resin materials, and the raw materials for controlling the top layer include 60 parts of fluff pulp fibers, 30 parts of Lyocell staple fiber and 10 parts of heat-fusible staple fiber.

Embodiment 2

[0059] Prepare dust-free paper according to the above-mentioned process and control points, wherein in step ii, in terms of dry weight parts, the raw materials for controlling the bottom layer include 50 parts of fluff pulp fibers, 20 parts of lyocell short fibers and 10 parts of hot melt The raw materials for controlling the middle layer include 70 parts of fluff pulp fibers, 15 parts of hot-melt short fibers and 5 parts of polymer water-absorbing resin materials, and the raw materials for controlling the top layer include 50 parts of fluff pulp fibers, 20 parts of Lyocell staple fiber and 10 parts of heat-fusible staple fiber.

Embodiment 3

[0061] Prepare dust-free paper according to the above-mentioned process and control points, wherein in step ii, in terms of dry weight parts, the raw materials for controlling the bottom layer include 70 parts of fluff pulp fibers, 40 parts of lyocell short fibers and 15 parts of hot melt The raw materials for controlling the middle layer include 85 parts of fluff pulp fibers, 30 parts of hot-melt short fibers and 10 parts of polymer water-absorbing resin materials, and the raw materials for controlling the top layer include 70 parts of fluff pulp fibers, 40 parts of Lyocell staple fiber and 15 parts of heat-fusible staple fiber.

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PUM

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Abstract

The invention discloses a process for preparing high-wet-strength dust-free paper and the resulting product; the process includes: breaking up fluff pulp fibers → lyocell short fibers, hot-melt short fibers unpacking and loosening, metering → adding SAP → Mixing of fluff fiber, lyocell staple fiber and hot-melt staple fiber → air-laid web forming → forming web conveying → compaction → heating in hot-melt oven → surface coating → puffing box → cooling treatment and calendering treatment. The dust-free paper prepared by the invention has the characteristics of high hygroscopicity, high wet strength, good softness, high bulkiness, no dust shedding, etc., and has little change in dry and wet strength, and is suitable for makeup remover towels and caters to today's market.

Description

technical field [0001] The invention relates to a process for preparing high-wet-strength dust-free paper and the resulting product. Background technique [0002] Dry-laid papermaking nonwoven fabric, referred to as dust-free paper for short, is a special dry-laid nonwoven fabric formed by using wood pulp fiber as raw material, air-laid, and then consolidated. According to the different forms of bonding, it is divided into three types: glued paper, heat-bonded paper and composite paper. Dust-free paper products are mainly daily necessities series, with good dry and wet strength, softness and water absorption. After lamination, printing, dyeing and other processing, they can be made into various sheets, tablecloths, napkins and wet wipes, etc., and can also be widely used Used as a core material for hygiene products. [0003] Chinese patent CN201010044865.X discloses a polymer composite core and its preparation method, wherein the polymer composite core is provided with a s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F3/00D21F5/00D21F7/00D21H13/02D21H13/20D21H23/24
CPCD21H13/02D21H13/20D21F3/00D21F5/00D21F7/00D21H23/24
Inventor 朱明晖郝景标
Owner NOX BELLCOW COSMETICS CO LTD