CN102657895A - Preparation method of deodorant baby diaper with high water absorbability - Google Patents

Abstract

The invention provides a preparation method of a deodorant baby diaper with high water absorbability. The preparation method comprises the following steps of: grinding, crashing and uniformly mixing Fe2(SO4)3, (NH4)2SO4, beta-cyclodextrin and diatomite, rapidly adding FeSO4 under a seal condition, and then briquetting and moulding or directly using dry powder so as to prepare a deodorizer; uniformly mixing the deodorizer and resin with high water absorbability; and preparing the deodorant baby diaper with high water absorbability according to a traditional preparation method of baby diapers. According to the preparation method, Fe2(SO4)3, FeSO4 and (NH4)SO4 are respectively used for removing H2S and NH3 generated by oxygenolysis of fecaluria in the baby diaper; beta-cyclodextrin is utilized to remove smelly substances such as thiol and beta-skatole in the baby diaper; the deodorizers are non-toxic and non-corrosive and are good in deodorization effect; beta-cyclodextrin and the resin with high water absorbability are utilized to remove a great deal of moisture contained in the fecaluria in the baby diaper; the diatomite is utilized as a carrier for the deodorizers and can be used for increasing the functions of the deodorizers and greatly lowering the cost; the production process is simple; and the prepared deodorant baby diaper product has no toxic or side effect to a human body.

Description

The method for preparing of high-hydroscopicity deodorization diaper

Technical field

The present invention relates to a kind of method for preparing of diaper, particularly a kind of method for preparing of high-hydroscopicity deodorization diaper.

Background technology

At present, the main material of diaper is super absorbent resin (being called for short macromolecule SAP), and it is that primary raw material is processed by starch and acrylates.The maximum characteristics of diaper are that suction and reservoir storage are big, and its absorption normal saline is 40～60 times of own wt, and the pure water of absorption is more than 500 times of own wt.Along with updating of production technology, it is ventilative but also to inhale urine antibiotic that diaper is improved to not only leakproof from initial leakproof, the simple function that absorbs urine, and increased multiple functions such as telescopic resilience waistline, three-dimensional leakproof edge.But traditional diaper lacks effective deodorization; New through looking into, the whole world curious (ten big diaper brands, the U.S. in 1872; Co., Ltd in the Kimberly), precious (the ten big diaper brands of fitting of group; Brand under the P&G, leading brand) ten big diaper brands such as, its diaper product does not all have deodorant function.

The H that mercaptan in the human body fecaluria, Beta-methyl indole (scatol) and fecaluria oxidation Decomposition are produced ₂S, NH ₃Has stench etc. harmful gas.H ₂S gas has severe toxicity, and people's perception amount is 0.00037mg/m ³, contain 0.1%H ₂The gas of S can make human body poison the H that concentration is higher ₂S can make the people cause death at short notice; NH ₃Intense stimulus people's visual organ has certain toxicity, and the existence of these foul smell makes people feel the unhappy of living environment in the diaper.

Depend merely on the method deodorization of the physical absorption deodorizer of sheltering or processing such as materials such as activated carbon, kieselguhr and can not remove these foul smell effectively.Such deodorizer is that the method that physical absorption or the bag of odor pollutant through porous metallic substance and so on connects is removed foul smell, and chemical change does not take place during deodorize.Its shortcoming is that absorption has selectivity, and is not good with regard to the utmost point to the smelly effect of disappearing of ammonia like activated carbon.And physical absorption deodorizer mainly is to lean on intermolecular Van der Waals force in action, has reversibility, when temperature rises; Can emit adsorbate on the contrary, the slow and absorbability of adsorption process in time passing and reduce, thereby the smelly speed that disappears is slower, insufficient; The deodorization rate is lower, and function is limited.

Summary of the invention

The object of the present invention is to provide a kind of method for preparing of high-hydroscopicity deodorization diaper, promptly utilize the chemical deodorizing agent to remove the source material of deodorizing, make malodorous main matter of generation and deodorizer generation chemical reaction be transformed into not smelly composition.

For achieving the above object, the technical scheme that the present invention adopts is:

1) at first, gets 8% ~ 10% Fe by mass percent ₂(SO ₄) ₃, 9% ~ 11% (NH ₄) ₂SO ₄, 15% ~ 16.5% beta-schardinger dextrin-, 48% ~ 50% kieselguhr and 16% ~ 16.5%FeSO ₄

2) then, at normal temperatures successively with above-mentioned Fe ₂(SO ₄) ₃, (NH ₄) ₂SO ₄, beta-schardinger dextrin-and kieselguhr grinds and mix homogeneously, sealing adds FeSO down fast ₄Back briquetting molding or directly use dry powder to process deodorizer;

3) deodorizer and super absorbent resin are pressed mass ratio 1: (9 ~ 15) mix homogeneously, and process high-hydroscopicity deodorization diaper by the traditional preparation process method of diaper.

The present invention adds Fe in the diaper of traditional method preparation ₂(SO ₄) ₃, FeSO ₄, (NH ₄) ₂SO ₄, chemical deodorizing agent such as beta-schardinger dextrin-, be that carrier prepares high-hydroscopicity deodorization diaper with lower-cost kieselguhr.

The chemical deodorizing agent and the carrier that add in the diaper are following to the mechanism of action of foul smell:

Fe ₂（SO ₄） ₃+3H ₂S=2FeS+S+3H ₂SO ₄

FeSO ₄+H ₂S=FeS+H ₂SO ₄

H ₂SO ₄+2NH ₃=(NH ₄) ₂SO ₄

H ₂S+(NH ₄) ₂SO ₄+2O2=2NH ₄HSO ₄

4NH ₃+FeSO ₄=[Fe(NH ₃) ₄]SO ₄

The ferrous sulfate powder is met water can make fecaluria be acid, and its fermentation and decomposition are suppressed, and ferrous iron also can form coordination compound with the foul smell composition, thereby makes the generation of foul smell significantly reduce.

(β-CD) is by the ring of seven glucopyranose units with α-1,4 bonding to beta-schardinger dextrin-, and whole molecule becomes awl post and truncated cones shape garland, has hollow and inner hydrophobic, outside hydrophilic construction features.The stink substance of the size of effective ingredient mercaptan, Beta-methyl indole (scatol) and other geometry, size, polarity and β-CD cavity and character coupling all can be adsorbed in β-CD hydrophobic cavity preferably in the liquid manure; With its formation inclusion complex, thus deodorization.Because the beta-schardinger dextrin-exocoel is hydrophilic, in diaper, add a certain amount of super absorbent resin, a large amount of moisture in the promptly adsorbable urine more simultaneously.

Diatomaceous main component as the deodorizer carrier is SiO ₂, having good dispersion and pore structure, porosity is big, specific surface area is very big, absorbability is strong, chemical property is stable, foul smell molecule such as ammonia, hydrogen sulfide and hydrone are had stronger absorption affinity, and cost is lower.This invention utilizes kieselguhr as the deodorizer carrier, and adds above-mentioned deodorizer and can reduce the concentration of ammonia and hydrogen sulfide greatly, thereby reaches the purpose of excellent deodorization effect.

Therefore utilize chemical deodorizing agent absorption, decomposition smelly source material and traditional aromatic to cover the method that we combines, can play the effect of " this double controlling of table ".

The specific embodiment

Embodiment 1:

1) at first, gets 8% Fe by mass percent ₂(SO ₄) ₃, 9% (NH ₄) ₂SO ₄, 16.5% beta-schardinger dextrin-, 50% kieselguhr and 16.5%FeSO ₄

2) then, at normal temperatures successively with above-mentioned Fe ₂(SO ₄) ₃, (NH ₄) ₂SO ₄, beta-schardinger dextrin-and kieselguhr grinds and mix homogeneously, sealing adds FeSO down fast ₄Back briquetting molding or directly use dry powder to process deodorizer;

3) deodorizer and super absorbent resin are pressed mass ratio 1:9 mix homogeneously, and process high-hydroscopicity deodorization diaper by the traditional preparation process method of diaper.

Embodiment 2:

1) at first, gets 10% Fe by mass percent ₂(SO ₄) ₃, 11% (NH ₄) ₂SO ₄, 15% beta-schardinger dextrin-, 48% kieselguhr and 16%FeSO ₄

2) then, at normal temperatures successively with above-mentioned Fe ₂(SO ₄) ₃, (NH ₄) ₂SO ₄, beta-schardinger dextrin-and kieselguhr grinds and mix homogeneously, sealing adds FeSO down fast ₄Back briquetting molding or directly use dry powder to process deodorizer;

3) deodorizer and super absorbent resin are pressed mass ratio 1:11 mix homogeneously, and process high-hydroscopicity deodorization diaper by the traditional preparation process method of diaper.

Embodiment 3:

1) at first, gets 9% Fe by mass percent ₂(SO ₄) ₃, 10% (NH ₄) ₂SO ₄, 15.5% beta-schardinger dextrin-, 49% kieselguhr and 16.5%FeSO ₄

2) then, at normal temperatures successively with above-mentioned Fe ₂(SO ₄) ₃, (NH ₄) ₂SO ₄, beta-schardinger dextrin-and kieselguhr grinds and mix homogeneously, sealing adds FeSO down fast ₄Back briquetting molding or directly use dry powder to process deodorizer;

3) deodorizer and super absorbent resin are pressed mass ratio 1:15 mix homogeneously, and process high-hydroscopicity deodorization diaper by the traditional preparation process method of diaper.

Embodiment 4:

1) at first, gets 8.8% Fe by mass percent ₂(SO ₄) ₃, 9.5% (NH ₄) ₂SO ₄, 16% beta-schardinger dextrin-, 49.5% kieselguhr and 16.2%FeSO ₄

2) then, at normal temperatures successively with above-mentioned Fe ₂(SO ₄) ₃, (NH ₄) ₂SO ₄, beta-schardinger dextrin-and kieselguhr grinds and mix homogeneously, sealing adds FeSO down fast ₄Back briquetting molding or directly use dry powder to process deodorizer;

3) deodorizer and super absorbent resin are pressed mass ratio 1:13 mix homogeneously, and process high-hydroscopicity deodorization diaper by the traditional preparation process method of diaper.

The present invention is mainly used in the cleaning product of colonies such as infant, bed old man, critical illness people.Can solve effectively deodorant drawback of traditional diaper preferably, play the purpose of removing stink, conveniently use, having no side effect, improve the environmental condition of people's life.

The present invention utilizes Fe ₂(SO ₄) ₃And FeSO ₄, (NH ₄) ₂SO ₄Remove the H that the fecaluria oxidation Decomposition is produced in the diaper respectively ₂S, NH ₃

The mercaptan, the Beta-methyl indole (scatol) that utilize beta-schardinger dextrin-to remove in the diaper wait other stink substance, all nontoxic, the no burn into good deodorization effect of these deodorizer.

Utilize beta-schardinger dextrin-and super absorbent resin to remove the contained large quantity of moisture of fecaluria in the diaper.

With the carrier of kieselguhr as above-mentioned deodorizer, can improve the function of deodorizer, and can reduce cost greatly, production technology is simple, and the deodorization diaper product of preparing has no side effect to human body.

The diaper sample of clip constant weight soaks 24h in urine under the room temperature, take out, and inhales with filter paper and goes to weigh rapidly behind the sample excessive moisture, is calculated as follows its water absorption rate:

Water absorption rate=(m-m ₀)/m ₀* 100%

Wherein: m ₀Quality (g) for dried diaper sample before absorbing water; M is the gross mass (g) of diaper behind the adsorption moisture, and the water absorption rate that records diaper is 90%.The deodorization diaper that the present invention makes is surveyed its deodoriging properties parameter down in room temperature (25 ℃):

Adopt 9 lucite square boxes, the fecaluria of putting into diaper goods and certain mass experimentizes.Measure NH before the experiment ₃, H ₂S content as contrast, is measured NH in the square box respectively after several hours ₃, H ₂S content and odor concentration, NH ₃Adopt sodium hypochlorite-salicylic acid spectrophotometry, H ₂S adopts ammonium alcohol polyvinyl phosphate absorption-methylene-blue colorimetric method to measure, and draws the deodorization rate, and also available manual work is smelt and distinguished the evaluation deodorizing effect.The removing the ammonia rate and can reach 75%, H of this diaper that finally records ₂The rate of removing of S can reach 70%.

Claims (1)

1. the method for preparing of high-hydroscopicity deodorization diaper is characterized in that:

1) at first, gets 8% ~ 10% Fe by mass percent ₂(SO ₄) ₃, 9% ~ 11% (NH ₄) ₂SO ₄, 15% ~ 16.5% beta-schardinger dextrin-, 48% ~ 50% kieselguhr and 16% ~ 16.5%FeSO ₄

2) then, at normal temperatures successively with above-mentioned Fe ₂(SO ₄) ₃, (NH ₄) ₂SO ₄, beta-schardinger dextrin-and kieselguhr grinds and mix homogeneously, sealing adds FeSO down fast ₄Back briquetting molding or directly use dry powder to process deodorizer;

3) deodorizer and super absorbent resin are pressed mass ratio 1: (9 ~ 15) mix homogeneously, and process high-hydroscopicity deodorization diaper by the traditional preparation process method of diaper.