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CN-122005893-A - Deodorizing paper diaper with warning function and preparation method thereof

CN122005893ACN 122005893 ACN122005893 ACN 122005893ACN-122005893-A

Abstract

The invention discloses a deodorizing paper diaper with a warning function, and belongs to the technical field of adult paper diapers. The invention is used for solving the technical problem that the adult diaper in the prior art cannot have the dual functions of deodorization and warning. The deodorizing paper diaper with the warning function sequentially comprises a surface layer, a diversion layer, an absorption core layer and a bottom film from top to bottom, wherein the surface layer fabric is formed by adding a composite indicator into EVA hot melt adhesive, then coating the composite indicator onto the surface of cotton fabric, and cooling and solidifying the composite indicator, and the composite indicator is trivalent cobalt/chitosan ligand/glycine o-cresol red. The absorbent core layer is obtained by paving a deodorant with fluff pulp, and the deodorant is spherical weak alkaline resin of a grafting monomer. The deodorizing paper diaper prepared by the invention has the advantages of warning amide and absorbing sulfide.

Inventors

  • MA XUEXIA
  • RONG LU

Assignees

  • 安徽舒源妇幼用品有限公司

Dates

Publication Date
20260512
Application Date
20260120

Claims (9)

  1. 1. The deodorizing paper diaper with the warning function is characterized in that the deodorizing paper diaper with the warning function sequentially comprises a surface layer, a diversion layer, an absorption core layer and a bottom film from top to bottom; The surface fabric is obtained by adding a composite indicator into EVA hot melt adhesive, and then coating the composite indicator on the surface of cotton fabric for cooling and solidifying, wherein the composite indicator is trivalent cobalt/chitosan ligand/glycine o-cresol red; the absorbent core layer is obtained by paving a deodorant with fluff pulp, and the deodorant is spherical weak alkaline resin grafted with melamine and tetraethylenepentamine.
  2. 2. The deodorizing paper diaper with the warning function according to claim 1, wherein the preparation method of the surface layer fabric comprises the following steps: A1, adding chitosan into acetic acid solution, stirring and dissolving to obtain chitosan solution, adding cobalt chloride into deionized water, stirring and dissolving to obtain cobalt chloride aqueous solution, oxidizing the cobalt chloride aqueous solution to obtain oxidized cobalt chloride solution, dripping the oxidized cobalt chloride solution into the chitosan solution to obtain mixed solution, regulating the pH value of the mixed solution to 5-6, and stirring and reacting for 4-6 hours at 45-55 ℃ to obtain a reactant; A2, carrying out rotary evaporation on reactants, adding glycine-o-cresol red into the reactants, uniformly mixing to obtain a trivalent cobalt/chitosan ligand/glycine-o-cresol red mixture, centrifuging the trivalent cobalt/chitosan ligand/glycine-o-cresol red mixture, collecting all precipitates, carrying out suction filtration on all the precipitates by adopting a microporous filter membrane with the diameter of 0.4-0.5 mu m to obtain a product, and washing and drying the product until the weight is constant, thus obtaining the prepared composite indicator.
  3. 3. The deodorizing paper diaper with the warning function according to claim 2, wherein in the step A1, the concentration of an acetic acid solution is 1-1.5wt%, the dosage ratio of chitosan to the acetic acid solution is 1-2g:30-50mL, the dosage ratio of cobalt chloride to deionized water is 0.3-0.6g:20-30mL, the mass ratio of a cobalt chloride aqueous solution to a hydrogen peroxide solution is 25-35:1, and the dosage ratio of the oxidized cobalt chloride solution to the chitosan solution is 20-30mL:30-50mL.
  4. 4. The deodorizing paper diaper with the warning function according to claim 2, wherein in the step A2, the rotary steaming pressure is-0.06 to-0.08 MPa, the rotary steaming temperature is 60-65 ℃, the mass ratio of the reactant to the glycine o-cresol red is 1-2:10, the centrifugal rotating speed is 8000-10000r/min, and the centrifugal duration is 15-25min.
  5. 5. The deodorizing paper diaper with the warning function according to claim 1, characterized in that the preparation method of the deodorizing agent comprises the following steps: Adding m-phenylenediamine into 35-38wt% of concentrated hydrochloric acid, stirring until the m-phenylenediamine is dissolved, adding formaldehyde at the temperature of minus 9 to minus 5 ℃ and uniformly mixing to obtain a reaction system, reacting the reaction system for 10-15min, adding melamine and tetraethylenepentamine, and uniformly mixing to obtain a monomer mixture; B2, mixing the monomer mixture, the dispersing agent and the suspending agent, performing suspension polymerization, wherein the suspension polymerization temperature is 65-80 ℃ and the suspension polymerization time is 15-20min, adding sulfonated carbon, uniformly mixing, standing, filtering, collecting solid, washing the solid with water, and drying to constant weight to obtain the deodorant.
  6. 6. The deodorizing paper diaper with the warning function according to claim 5, wherein in the step B1, the dosage ratio of m-phenylenediamine, concentrated hydrochloric acid, formaldehyde, melamine and tetraethylenepentamine is 5.4-10.8 g/100 mL/3-6 g/3-5 g.
  7. 7. The deodorizing paper diaper with the warning function according to claim 5, wherein in the step B2, the weight ratio of the monomer mixture, the dispersing agent, the suspending agent and the sulfonated carbon is 10:3-4:0.05:10-20, and the standing time is 2-4 hours.
  8. 8. The deodorizing paper diaper with the warning function according to claim 1, wherein the mass ratio of the composite indicator to the EVA hot melt adhesive to the cotton fabric is X4:20, wherein X is 1-4, X is an integer, the cooling solidification temperature is 25-30 ℃, the cooling solidification time is 3-5min, and the mass ratio of the fluff pulp to the deodorizing agent is 10-20:1.
  9. 9. The deodorizing paper diaper with the warning function according to claim 1, wherein the base film is made of PE, and the diversion layer is made of non-woven fabric made of polypropylene.

Description

Deodorizing paper diaper with warning function and preparation method thereof Technical Field The invention belongs to the technical field of adult paper diapers, and particularly relates to a deodorizing paper diaper with a warning function and a preparation method thereof. Background With the continuous aggravation of the aging population of China, the problem of odor of excrement is more and more concerned about the long-term care of the aged population. The odor substances which can be sensed by the olfactory organ of the human body are more than four thousand, wherein the odor substances are mainly compounds containing sulfur, nitrogen and oxygen elements which have great harm to the human body, such as hydrogen sulfide, thioether alcohol, trimethylamine, indole and the like, and the odor substances have different degrees of adverse effects on the digestive system, respiratory system, circulatory system, endocrine system, nervous system and the like of the human body. The adult diaper with deodorizing performance not only can timely absorb human excrement, but also can well control the odor directly brought by the excrement and inhibit the odor further generated in the microorganism proliferation process, thus being an ideal nursing product. Patent application CN113289047a discloses a paper diaper capable of effectively resisting bacteria and deodorizing, and the absorption core layer comprises bamboo carbon fiber, an antibacterial bond-releasing agent and the like. The paper diaper disclosed in the above patent adopts bamboo charcoal fiber to eliminate odor. However, physical absorption of irritant gases such as hydrogen sulfide is limited. In addition, when the human health system is unbalanced, the urine is often accompanied by the problem of excessive content of urea, uric acid and the like. Wherein, urea is decomposed under the action of intestinal bacteria to produce ammonia, and part of ammonia can be absorbed into blood and finally excreted into urine through kidneys. While ammonia has a strong pungent odor. Can be used as an index of unbalance of human health. Therefore, developing a paper diaper capable of detecting ammonia gas with a threshold concentration for human health is also of great significance. In view of the technical drawbacks of this aspect, a solution is now proposed. Disclosure of Invention The invention aims to provide a deodorizing paper diaper with a warning function, which is used for solving the technical problem that an adult paper diaper in the prior art cannot have the dual functions of deodorizing and warning. The aim of the invention can be achieved by the following technical scheme: The deodorizing paper diaper with the warning function sequentially comprises a surface layer, a diversion layer, an absorption core layer and a bottom film from top to bottom; The surface fabric is obtained by adding a composite indicator into EVA hot melt adhesive, then coating the composite indicator on the surface of cotton fabric, and cooling and solidifying; the absorbent core layer is obtained by paving a deodorant with fluff pulp, and the deodorant is spherical weak alkaline resin grafted with melamine and tetraethylenepentamine. Further, the preparation method of the surface layer fabric comprises the following steps: A1, adding chitosan into acetic acid solution, stirring and dissolving to obtain chitosan solution, adding cobalt chloride into deionized water, stirring and dissolving to obtain cobalt chloride aqueous solution, dropwise adding 3-5wt% of hydrogen peroxide solution into the cobalt chloride aqueous solution, heating to 45-55deg.C, oxidizing for 20-30min to obtain oxidized cobalt chloride solution, dropwise adding oxidized cobalt chloride solution into the chitosan solution to obtain mixed solution, regulating pH value of the mixed solution to 5-6, and stirring and reacting for 4-6h at 45-55deg.C to obtain a reactant; when bivalent cobalt chloride is oxidized into trivalent by hydrogen peroxide, the trivalent cobalt chloride is quickly transferred into chitosan solution to form trivalent cobalt chloride/chitosan ligand. A2, steaming the reactant in a rotary way, adding glycine-o-cresol red into the reactant, uniformly mixing to obtain a trivalent cobalt/chitosan ligand/glycine-o-cresol red mixture, centrifuging the trivalent cobalt/chitosan ligand/glycine-o-cresol red mixture, collecting all precipitates, carrying out suction filtration on the precipitates by using a microporous filter membrane with the diameter of 0.4-0.5 mu m to obtain a product, washing the product, and drying the product to constant weight to obtain the prepared composite indicator trivalent cobalt/chitosan ligand/glycine-o-cresol red. The trivalent cobalt/chitosan ligand and the glycine o-cresol red form a composite indicator through electrostatic adsorption. Further, in the step A1, the concentration of the acetic acid solution is 1-1.5wt%, the dosage ratio of the chitosan to the acetic acid so