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Continuous production process of cellulose sponge

A cellulose sponge and production process technology, which is applied to other household appliances, flat products, household appliances, etc., can solve the problems of uneven heating of raw materials, difficulty in collecting and processing waste gas and waste liquid, and difficult shaping of viscose solution, so as to achieve guaranteed performance Stability, realization of waste utilization, and the effect of being friendly to the environment

Active Publication Date: 2020-12-08
CHENGDU GRACE FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. There are uneven heating of raw materials, and the waste gas and waste liquid produced during the molding process are difficult to collect and treat, etc.;
[0004]Second, because the mold curing preparation method involves intermittent operation, it cannot achieve continuous production
But in this technical scheme, it is allowed to cost-effectively prepare a sponge with a high thickness. Although this preparation method solves the problem of continuous production, it places the viscose solution on a continuously moving conveyor belt, wherein the viscose solution is placed in the Guided through the bath on the conveyor belt, the porous substance is formed from regenerated cellulose, and it is known that the viscose solution is not easy to set, and the shape of the sponge cannot be guaranteed

Method used

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  • Continuous production process of cellulose sponge
  • Continuous production process of cellulose sponge
  • Continuous production process of cellulose sponge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] A continuous production process of cellulose sponge, comprising the steps of:

[0071] A. Glue making: use pulp with methylcellulose content ≥ 93% and dynamic viscosity ≥ 10mpa.s as raw material, soak in dipping tank 1 for alkalization, press 2 for crushing, and yellowing machine 3 for vacuum yellowing to obtain viscose ; Wherein, in yellowing machine 3, CS2 addition ratio is 38%, and vacuum degree is-0.085MPa;

[0072] B. Weighing: with the ratio of Glauber's salt to the obtained viscose as 3.2, weigh Glauber's salt and the obtained viscose respectively; wherein, the particle size of Glauber's salt is 2mm;

[0073] C. Stirring: place the weighed Glauber's salt and the obtained viscose in the crankshaft mixer 4, and stir for 15 minutes under the conditions of a rotating speed of 60r / min and a temperature of ≤40°C to obtain a mixture;

[0074] D. Discharging: Place the obtained mixed material in the mixing hopper on the screw extruder 5, open the screw extruder 5, a...

Embodiment 2

[0080] Based on embodiment 1, the difference of this embodiment is:

[0081] A continuous production process of cellulose sponge, comprising the steps of:

[0082] A. Glue making: use pulp with methylcellulose content ≥ 93% and dynamic viscosity ≥ 10mpa.s as raw material, soak in dipping tank 1 for alkalization, press 2 for crushing, and yellowing machine 3 for vacuum yellowing to obtain viscose ; Wherein, in yellowing machine 3, CS2 adding ratio is 33%, and vacuum degree is-0.08MPa;

[0083] B. Weighing: Take the ratio of Glauber's salt to the obtained viscose as 2.9, weigh Glauber's salt and the obtained viscose respectively; wherein, the particle size of Glauber's salt is 5mm;

[0084] C. Stirring: place the weighed Glauber's salt and the obtained viscose in the crankshaft mixer 4, and stir for 10 minutes at a speed of 30r / min and a temperature of ≤40°C to obtain a mixture;

[0085] D. Discharging: Place the mixed material obtained in the mixing hopper on the screw extr...

Embodiment 1-2

[0091] Based on Embodiment 1-2, the difference of this embodiment is:

[0092] A continuous production process of cellulose sponge, comprising the steps of:

[0093] A. Glue making: use pulp with methylcellulose content ≥ 93% and dynamic viscosity ≥ 10mpa.s as raw material, soak in dipping tank 1 for alkalization, press 2 for crushing, and yellowing machine 3 for vacuum yellowing to obtain viscose ; Wherein, in yellowing machine 3, CS2 addition ratio is 45%, and vacuum degree is-0.09MPa;

[0094] B. Weighing: Take the ratio of Glauber's salt to the obtained viscose as 3.5, weigh Glauber's salt and the obtained viscose respectively; wherein, the particle size of Glauber's salt is 3mm;

[0095] C. Stirring: Place the weighed Glauber's salt and the obtained viscose in the crankshaft mixer 4, and stir for 20 minutes under the condition that the rotating speed is 90r / min and the temperature is ≤40°C to obtain the mixture;

[0096] D. Discharging: Place the obtained mixed mate...

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Abstract

The invention discloses a continuous production process of cellulose sponge, and belongs to the technical field of cellulose sponge production equipment. Pulp with the methylcellulose content being larger than or equal to 93% and the dynamic viscosity being larger than or equal to 10 mpa.s serves as a raw material, corresponding intermedia, finished products and the like are prepared on the basisof setting of a dipping barrel, a presser, a xanthating machine, a crankshaft stirrer, a screw extruder and the like in cooperation with corresponding control conditions, industrial and continuous production of cellulose sponge is achieved, raw material waste is effectively reduced, waste utilization is achieved, and environment friendliness is achieved.

Description

technical field [0001] The invention relates to a sponge production process, in particular to a cellulose sponge continuous production process, and belongs to the technical field of cellulose sponge production equipment. Background technique [0002] At present, in the production of cellulose sponge, pulp is used as the main raw material, and after alkalization, yellowing, aging, mixing, foam molding and washing processes, degradable cellulose sponge products are made, but in the fiber In the molding of plain sponges, the raw materials are generally injected directly into the injection mold, and the raw materials are heated through the electrode plate in the injection mold to solidify the viscose to form a massive cellulose sponge, thereby realizing the production of large-scale cellulose sponges. There are following technical problems: [0003] 1. There are uneven heating of raw materials, and it is difficult to collect and dispose of waste gas and liquid produced during t...

Claims

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Application Information

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IPC IPC(8): B29D7/01B29C48/305B29C48/07C08J9/26C08L1/24C08B9/04B29L7/00
CPCB29D7/01B29C48/305B29C48/07C08J9/26C08B9/04B29L2007/002C08J2301/24C08J2201/0444
Inventor 辜庆玲龙国强杜咏林雍楠王青霖
Owner CHENGDU GRACE FIBER
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