A kind of preparation method of machine-made water-soluble polyvinyl alcohol non-woven shopping bag

A technology of polyvinyl alcohol and non-woven fabrics, applied in textiles and papermaking, improved handle fibers, fiber treatment, etc., can solve the problem of low processing efficiency of polyvinyl alcohol non-woven fabrics, certain limitations in application fields, and poor heat dissipation Sealing performance and other issues, to achieve the effect of improved mechanical properties, increased elongation at break, and firm fiber nodes

Active Publication Date: 2020-04-24
SHENGZHEN SAILONG FIBERGLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It cannot have excellent heat sealing performance like non-woven fabrics prepared by other commonly used plastic synthetic resins, so it is subject to certain restrictions in the application field, such as the second processing of non-woven fabrics: edge sealing, sealing, bag making, etc.
Only traditional manual stitching can be carried out instead of the process of automatic heat-sealing processing machinery
This has led to low processing efficiency and a sharp increase in cost of polyvinyl alcohol non-woven fabrics.

Method used

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  • A kind of preparation method of machine-made water-soluble polyvinyl alcohol non-woven shopping bag
  • A kind of preparation method of machine-made water-soluble polyvinyl alcohol non-woven shopping bag
  • A kind of preparation method of machine-made water-soluble polyvinyl alcohol non-woven shopping bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) The sizing agent includes the following components in parts by weight (see Table 1):

[0031] Table 1

[0032]

[0033] After measuring the materials in the above components, add them into a dissolution vessel with a heating jacket, raise the temperature to 95°C for 2 hours under stirring (50 rpm), mix and dissolve for 2 hours, keep the temperature at 90°C for 30 minutes, and then cool down to room temperature. Material spare. It is the finishing agent required for the polyvinyl alcohol (PVA) nonwoven fabric described in the present invention when padding and sizing;

[0034] (2) Specification of polyvinyl alcohol non-woven fabric for finishing (GSM): 15g / m2;

[0035] (3) The polyvinyl alcohol non-woven fabric (GSM) after padding and gluing is: 30g / m2.

[0036] Table 2 shows the performance comparison results of the PVA non-woven fabric after padding and the PVA non-woven fabric without padding (blank sample).

[0037] Table 2

[0038]

[0039] It can be ...

Embodiment 2

[0041] (1) The sizing agent includes the following components in parts by weight (see Table 3):

[0042] table 3

[0043]

[0044]

[0045]After measuring the materials in the above components, add them into a dissolution vessel with a heating jacket, raise the temperature to 95°C for 3 hours under stirring (50 rpm), mix and dissolve for 3 hours, and keep the temperature at 90°C for 30 minutes, then cool down to room temperature and leave. Material spare. It is the finishing agent required for the polyvinyl alcohol (PVA) nonwoven fabric described in the present invention when padding and sizing;

[0046] (2) Specification of polyvinyl alcohol non-woven fabric for finishing (GSM): 80g / m2;

[0047] (3) The polyvinyl alcohol non-woven fabric (GSM) after padding and gluing is: 104g / m2.

[0048] Table 4 shows the performance comparison results of the polyvinyl alcohol nonwoven fabric after padding finishing and the polyvinyl alcohol nonwoven fabric (blank sample) without p...

Embodiment 3

[0053] (1) The sizing agent includes the following components in parts by weight (see Table 5):

[0054] table 5

[0055]

[0056] After measuring the materials in the above components, add them into a dissolution vessel with a heating jacket, raise the temperature to 95°C for 4 hours under stirring (50 rpm), mix and dissolve for 4 hours, and keep the temperature at 90°C for 30 minutes, then cool down to room temperature and leave. Material spare. It is the finishing agent required for the polyvinyl alcohol (PVA) nonwoven fabric described in the present invention when padding and sizing;

[0057] (2) Specification of polyvinyl alcohol non-woven fabric for finishing (GSM): 50g / m2;

[0058] (3) The polyvinyl alcohol non-woven fabric (GSM) after padding and gluing is: 75g / m2.

[0059] Table 6 shows the performance comparison results of the polyvinyl alcohol nonwoven fabric after padding finishing and the polyvinyl alcohol nonwoven fabric (blank sample) without padding finis...

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Abstract

Disclosed is a method for preparing a machine-made water-soluble polyvinyl alcohol nonwoven fabric shopping bag. The preparation method specifically involves: (1) preparing a sizing finishing agent, wherein the sizing finishing agent comprises the following raw material components, in parts by weight: 10-20 parts of polyvinyl alcohol; 3-8 parts of a polyol copolymer polyether; 1-3 parts of a polyacrylamide hydrolysate; 2-5 parts of a polyol; 1-3 parts of an inorganic filler; 1-3 parts of urea; 0.1-0.3 part of a wetting agent; 0.2-0.5 part of an imidazolidinyl urea; 0.1-0.3 part of a p-hydroxybenzoate; and 100 parts of water; and these components are mixed to prepare the sizing finishing agent; (2) applying the sizing finishing agent to padding finishing and coating finishing processes for a polyvinyl alcohol nonwoven fabric; and (3) subjecting the polyvinyl alcohol nonwoven fabric, which has been padded or coated and sized, to mechanized automatic hot-seal bagmaking to obtain the shopping bag. The shopping bag provided by the present invention has excellent heat sealability and mechanical properties and a good hand feeling. By means of the method, the processing efficiency is improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to the field of secondary processing of non-woven fabrics, in particular to a preparation method of machine-made water-soluble polyvinyl alcohol non-woven shopping bags. Background technique [0002] As an environmentally friendly material, polyvinyl alcohol (PVA) has been rapidly developed and applied in many fields in recent years. As a country with a large production capacity of vinylon, China has abundant sources of raw materials and application markets. In the pre-production process of vinylon, polyvinyl alcohol (PVA) formed by wet spinning coagulation bath is directly used without acetal treatment. It is also a field that has been rapidly developed and applied in recent years for the production of polyvinyl alcohol non-woven fabrics. Due to the water-soluble and environmentally friendly properties of polyvinyl alcohol non-woven fabrics, it has begun to replace non-woven fabrics made of plastic synthetic resins in many field...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/333D06M15/53D06M15/285D06M13/432D06M13/224D06M101/24
CPCD06M13/224D06M13/432D06M15/285D06M15/333D06M15/53D06M2101/24D06M2200/50
Inventor 崔跃飞
Owner SHENGZHEN SAILONG FIBERGLASS CO LTD
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